diff --git a/src/Core_30/HandyControlDemo_Core_30/HandyControlDemo_Core30.csproj b/src/Core_30/HandyControlDemo_Core_30/HandyControlDemo_Core30.csproj
index efb97896..bd47b261 100644
--- a/src/Core_30/HandyControlDemo_Core_30/HandyControlDemo_Core30.csproj
+++ b/src/Core_30/HandyControlDemo_Core_30/HandyControlDemo_Core30.csproj
@@ -402,6 +402,9 @@
     <Resource Include="..\..\Shared\HandyControlDemo_Shared\Resources\Img\LeftMainContent\HandyControl.png">
       <Link>Resources\Img\LeftMainContent\HandyControl.png</Link>
     </Resource>
+    <Resource Include="..\..\Shared\HandyControlDemo_Shared\Resources\Img\LeftMainContent\Procedure_16x.png">
+      <Link>Resources\Img\LeftMainContent\Procedure_16x.png</Link>
+    </Resource>
     <Resource Include="..\..\Shared\HandyControlDemo_Shared\Resources\Img\Dance.png">
       <Link>Resources\Img\Dance.png</Link>
     </Resource>
diff --git a/src/Core_30/HandyControl_Core_30/Themes/Styles/Base/ComboBoxBaseStyle.xaml b/src/Core_30/HandyControl_Core_30/Themes/Styles/Base/ComboBoxBaseStyle.xaml
index d8f26026..ec88f225 100644
--- a/src/Core_30/HandyControl_Core_30/Themes/Styles/Base/ComboBoxBaseStyle.xaml
+++ b/src/Core_30/HandyControl_Core_30/Themes/Styles/Base/ComboBoxBaseStyle.xaml
@@ -22,7 +22,7 @@
                 <ControlTemplate TargetType="ToggleButton">
                     <Border CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="true">
                         <Border Margin="0,0,6,0" BorderThickness="1" BorderBrush="Transparent" HorizontalAlignment="Right" SnapsToDevicePixels="true" Width="{StaticResource {x:Static SystemParameters.VerticalScrollBarWidthKey}}">
-                            <Path x:Name="arrow" Data="{StaticResource DownGeometry}" Fill="{TemplateBinding BorderBrush}" HorizontalAlignment="Center" VerticalAlignment="Center"/>
+                            <Path Width="16" Height="9" x:Name="arrow" Data="{StaticResource DownGeometry}" Fill="{TemplateBinding BorderBrush}" HorizontalAlignment="Center" VerticalAlignment="Center"/>
                         </Border>
                     </Border>
                     <ControlTemplate.Triggers>
diff --git a/src/Net_40/HandyControlDemo_Net_40/HandyControlDemo_Net_40.csproj b/src/Net_40/HandyControlDemo_Net_40/HandyControlDemo_Net_40.csproj
index 530c4e9d..061ee976 100644
--- a/src/Net_40/HandyControlDemo_Net_40/HandyControlDemo_Net_40.csproj
+++ b/src/Net_40/HandyControlDemo_Net_40/HandyControlDemo_Net_40.csproj
@@ -417,6 +417,9 @@
       <Generator>TextTemplatingFileGenerator</Generator>
       <LastGenOutput>MessageToken.cs</LastGenOutput>
     </Content>
+    <Resource Include="..\..\Shared\HandyControlDemo_Shared\Resources\Img\LeftMainContent\Procedure_16x.png">
+      <Link>Resources\Img\LeftMainContent\Procedure_16x.png</Link>
+    </Resource>
     <Resource Include="..\..\Shared\HandyControlDemo_Shared\Resources\Img\LeftMainContent\HandyControl.png">
       <Link>Resources\Img\LeftMainContent\HandyControl.png</Link>
     </Resource>
diff --git a/src/Net_40/HandyControl_Net_40/Themes/Styles/Base/ComboBoxBaseStyle.xaml b/src/Net_40/HandyControl_Net_40/Themes/Styles/Base/ComboBoxBaseStyle.xaml
index afbb2390..96d3122e 100644
--- a/src/Net_40/HandyControl_Net_40/Themes/Styles/Base/ComboBoxBaseStyle.xaml
+++ b/src/Net_40/HandyControl_Net_40/Themes/Styles/Base/ComboBoxBaseStyle.xaml
@@ -5,7 +5,6 @@
                     xmlns:interactivity="clr-namespace:HandyControl.Interactivity">
 
     <ResourceDictionary.MergedDictionaries>
-        <ResourceDictionary Source="../../Basic/Sizes.xaml"/>
         <ResourceDictionary Source="../../Basic/Geometries.xaml"/>
         <ResourceDictionary Source="../../Basic/Converters.xaml"/>
         <ResourceDictionary Source="../TextBlock.xaml"/>
@@ -21,9 +20,9 @@
         <Setter Property="Template">
             <Setter.Value>
                 <ControlTemplate TargetType="ToggleButton">
-                    <Border x:Name="templateRoot" CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="true">
-                        <Border Margin="0,0,6,0" x:Name="splitBorder" BorderBrush="Transparent" BorderThickness="1" HorizontalAlignment="Right" SnapsToDevicePixels="true" Width="{StaticResource {x:Static SystemParameters.VerticalScrollBarWidthKey}}">
-                            <Path x:Name="arrow" Data="{StaticResource DownGeometry}" Stretch="Uniform" Fill="{TemplateBinding BorderBrush}" HorizontalAlignment="Center" Margin="0" VerticalAlignment="Center" RenderTransformOrigin="0.5,0.5"/>
+                    <Border CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="true">
+                        <Border Margin="0,0,6,0" BorderThickness="1" BorderBrush="Transparent" HorizontalAlignment="Right" SnapsToDevicePixels="true" Width="{StaticResource {x:Static SystemParameters.VerticalScrollBarWidthKey}}">
+                            <Path Width="16" Height="9" x:Name="arrow" Data="{StaticResource DownGeometry}" Fill="{TemplateBinding BorderBrush}" HorizontalAlignment="Center" VerticalAlignment="Center"/>
                         </Border>
                     </Border>
                     <ControlTemplate.Triggers>
@@ -54,9 +53,9 @@
                             <ColumnDefinition/>
                             <ColumnDefinition Width="30"/>
                         </Grid.ColumnDefinitions>
-                        <Border x:Name="templateRoot" Grid.ColumnSpan="2" CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="true"/>
-                        <Path Grid.Column="1" x:Name="arrow" Data="{StaticResource DownGeometry}" Stretch="Uniform" Fill="{TemplateBinding BorderBrush}" HorizontalAlignment="Center" Margin="7" VerticalAlignment="Center" RenderTransformOrigin="0.5,0.5"/>
-                        <Border Margin="0,1" Grid.Column="0" Visibility="{Binding Text,RelativeSource={RelativeSource AncestorType=ComboBox},Converter={StaticResource String2VisibilityReConverter}}">
+                        <Border Grid.ColumnSpan="2" CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="true"/>
+                        <Path Grid.Column="1" x:Name="arrow" Data="{StaticResource DownGeometry}" Stretch="Uniform" Fill="{TemplateBinding BorderBrush}" HorizontalAlignment="Center" Margin="7" VerticalAlignment="Center"/>
+                        <Border Margin="1" Grid.Column="0" Visibility="{Binding Text,RelativeSource={RelativeSource AncestorType=ComboBox},Converter={StaticResource String2VisibilityReConverter}}">
                             <ContentPresenter Focusable="False" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                         </Border>
                     </Grid>
@@ -83,12 +82,12 @@
             <Popup x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Margin="1" PopupAnimation="{StaticResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
                 <Border CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" x:Name="dropDownBorder" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{Binding ActualWidth, ElementName=templateRoot}" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Background="{DynamicResource RegionBrush}">
                     <ScrollViewer Margin="0,4" x:Name="DropDownScrollViewer">
-                        <Grid x:Name="grid" RenderOptions.ClearTypeHint="Enabled">
-                            <Canvas x:Name="canvas" HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
+                        <controls:SimplePanel RenderOptions.ClearTypeHint="Enabled">
+                            <Canvas HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
                                 <Rectangle x:Name="opaqueRect" Fill="{Binding Background, ElementName=dropDownBorder}" Height="{Binding ActualHeight, ElementName=dropDownBorder}" Width="{Binding ActualWidth, ElementName=dropDownBorder}"/>
                             </Canvas>
-                            <ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                        </Grid>
+                            <ItemsPresenter KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
+                        </controls:SimplePanel>
                     </ScrollViewer>
                 </Border>
             </Popup>
@@ -139,12 +138,12 @@
             <Popup Grid.Row="1" Grid.Column="0" x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Margin="1" PopupAnimation="{StaticResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
                 <Border CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" x:Name="dropDownBorder" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{Binding ActualWidth, ElementName=toggleButton}" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Background="{DynamicResource RegionBrush}">
                     <ScrollViewer Margin="0,4" x:Name="DropDownScrollViewer">
-                        <Grid x:Name="grid" RenderOptions.ClearTypeHint="Enabled">
-                            <Canvas x:Name="canvas" HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
+                        <controls:SimplePanel RenderOptions.ClearTypeHint="Enabled">
+                            <Canvas HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
                                 <Rectangle x:Name="opaqueRect" Fill="{Binding Background, ElementName=dropDownBorder}" Height="{Binding ActualHeight, ElementName=dropDownBorder}" Width="{Binding ActualWidth, ElementName=dropDownBorder}"/>
                             </Canvas>
-                            <ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                        </Grid>
+                            <ItemsPresenter KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
+                        </controls:SimplePanel>
                     </ScrollViewer>
                 </Border>
             </Popup>
@@ -186,19 +185,19 @@
                 <ColumnDefinition/>
                 <ColumnDefinition Width="30"/>
             </Grid.ColumnDefinitions>
-            <StackPanel VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="0,7,6,8" Visibility="{Binding Path=(controls:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource String2VisibilityConverter}}" Orientation="Horizontal">
+            <StackPanel VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="0,8,6,8" Visibility="{Binding Path=(controls:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource String2VisibilityConverter}}" Orientation="Horizontal">
                 <TextBlock Text="{Binding Path=(controls:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent}}"/>
                 <ContentPresenter TextElement.Foreground="{DynamicResource DangerBrush}" Margin="4,0,0,0" Content="{Binding Path=(controls:InfoElement.Symbol),RelativeSource={RelativeSource TemplatedParent}}" Visibility="{Binding Path=(controls:InfoElement.Necessary),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource Boolean2VisibilityConverter}}"/>
             </StackPanel>
             <Popup Grid.Column="1" x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Margin="1" PopupAnimation="{StaticResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
                 <Border CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" x:Name="dropDownBorder" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{Binding ActualWidth, ElementName=templateRoot}" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Background="{DynamicResource RegionBrush}">
                     <ScrollViewer Margin="0,4" x:Name="DropDownScrollViewer">
-                        <Grid x:Name="grid" RenderOptions.ClearTypeHint="Enabled">
-                            <Canvas x:Name="canvas" HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
+                        <controls:SimplePanel RenderOptions.ClearTypeHint="Enabled">
+                            <Canvas HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
                                 <Rectangle x:Name="opaqueRect" Fill="{Binding Background, ElementName=dropDownBorder}" Height="{Binding ActualHeight, ElementName=dropDownBorder}" Width="{Binding ActualWidth, ElementName=dropDownBorder}"/>
                             </Canvas>
-                            <ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                        </Grid>
+                            <ItemsPresenter KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
+                        </controls:SimplePanel>
                     </ScrollViewer>
                 </Border>
             </Popup>
@@ -261,17 +260,17 @@
             <Popup x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, RelativeSource={RelativeSource TemplatedParent}}" PopupAnimation="{StaticResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
                 <Border CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" x:Name="dropDownBorder" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{Binding ActualWidth, ElementName=templateRoot}" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Background="{DynamicResource RegionBrush}">
                     <ScrollViewer Margin="0,4" x:Name="DropDownScrollViewer">
-                        <Grid x:Name="grid" RenderOptions.ClearTypeHint="Enabled">
-                            <Canvas x:Name="canvas" HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
+                        <controls:SimplePanel RenderOptions.ClearTypeHint="Enabled">
+                            <Canvas HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
                                 <Rectangle x:Name="opaqueRect" Fill="{Binding Background, ElementName=dropDownBorder}" Height="{Binding ActualHeight, ElementName=dropDownBorder}" Width="{Binding ActualWidth, ElementName=dropDownBorder}"/>
                             </Canvas>
-                            <ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                        </Grid>
+                            <ItemsPresenter KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
+                        </controls:SimplePanel>
                     </ScrollViewer>
                 </Border>
             </Popup>
             <ToggleButton Grid.Column="0" x:Name="toggleButton" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" IsChecked="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Style="{StaticResource ComboBoxToggleButton}"/>
-            <Border Grid.Column="0" x:Name="border" Margin="-1,1">
+            <Border Grid.Column="0" Margin="-1,1">
                 <TextBox x:Name="PART_EditableTextBox" Padding="{TemplateBinding Padding}" Background="{TemplateBinding Background}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" IsReadOnly="{Binding IsReadOnly, RelativeSource={RelativeSource TemplatedParent}}" Style="{StaticResource ComboBoxEditableTextBox}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"/>
             </Border>
         </Grid>
@@ -320,12 +319,12 @@
             <Popup Grid.Column="0" Grid.Row="1" x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, RelativeSource={RelativeSource TemplatedParent}}" PopupAnimation="{StaticResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
                 <Border CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" x:Name="dropDownBorder" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{Binding ActualWidth, ElementName=templateRoot}" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Background="{DynamicResource RegionBrush}">
                     <ScrollViewer Margin="0,4" x:Name="DropDownScrollViewer">
-                        <Grid x:Name="grid" RenderOptions.ClearTypeHint="Enabled">
-                            <Canvas x:Name="canvas" HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
+                        <controls:SimplePanel RenderOptions.ClearTypeHint="Enabled">
+                            <Canvas HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
                                 <Rectangle x:Name="opaqueRect" Fill="{Binding Background, ElementName=dropDownBorder}" Height="{Binding ActualHeight, ElementName=dropDownBorder}" Width="{Binding ActualWidth, ElementName=dropDownBorder}"/>
                             </Canvas>
-                            <ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                        </Grid>
+                            <ItemsPresenter KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
+                        </controls:SimplePanel>
                     </ScrollViewer>
                 </Border>
             </Popup>
@@ -370,19 +369,19 @@
                 <ColumnDefinition/>
                 <ColumnDefinition Width="30"/>
             </Grid.ColumnDefinitions>
-            <StackPanel VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="0,7,6,8" Visibility="{Binding Path=(controls:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource String2VisibilityConverter}}" Orientation="Horizontal">
+            <StackPanel VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="0,8,6,8" Visibility="{Binding Path=(controls:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource String2VisibilityConverter}}" Orientation="Horizontal">
                 <TextBlock Text="{Binding Path=(controls:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent}}"/>
                 <ContentPresenter TextElement.Foreground="{DynamicResource DangerBrush}" Margin="4,0,0,0" Content="{Binding Path=(controls:InfoElement.Symbol),RelativeSource={RelativeSource TemplatedParent}}" Visibility="{Binding Path=(controls:InfoElement.Necessary),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource Boolean2VisibilityConverter}}"/>
             </StackPanel>
             <Popup Grid.Column="1" x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, RelativeSource={RelativeSource TemplatedParent}}" PopupAnimation="{StaticResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
                 <Border CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" x:Name="dropDownBorder" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{Binding ActualWidth, ElementName=templateRoot}" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Background="{DynamicResource RegionBrush}">
                     <ScrollViewer Margin="0,4" x:Name="DropDownScrollViewer">
-                        <Grid x:Name="grid" RenderOptions.ClearTypeHint="Enabled">
-                            <Canvas x:Name="canvas" HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
+                        <controls:SimplePanel RenderOptions.ClearTypeHint="Enabled">
+                            <Canvas HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
                                 <Rectangle x:Name="opaqueRect" Fill="{Binding Background, ElementName=dropDownBorder}" Height="{Binding ActualHeight, ElementName=dropDownBorder}" Width="{Binding ActualWidth, ElementName=dropDownBorder}"/>
                             </Canvas>
-                            <ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                        </Grid>
+                            <ItemsPresenter KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
+                        </controls:SimplePanel>
                     </ScrollViewer>
                 </Border>
             </Popup>
@@ -470,11 +469,11 @@
         <Setter Property="BorderThickness" Value="1"/>
         <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>
         <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>
-        <Setter Property="Height" Value="{StaticResource DefaultControlHeight}"/>
+        <Setter Property="MinHeight" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="ScrollViewer.CanContentScroll" Value="true"/>
         <Setter Property="ScrollViewer.PanningMode" Value="Both"/>
         <Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
-        <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
+        <Setter Property="Padding" Value="{StaticResource DefaultInputPadding}"/>
         <Setter Property="Template" Value="{StaticResource ComboBoxTemplate}"/>
         <Setter Property="VerticalContentAlignment" Value="Center"/>
         <Style.Triggers>
@@ -520,10 +519,10 @@
     <ControlTemplate x:Key="ComboBoxPlusTopTemplate" TargetType="controls:ComboBox">
         <ControlTemplate.Resources>
             <Storyboard x:Key="StoryboardShow">
-                <ThicknessAnimation Storyboard.TargetName="TextBlockError" Storyboard.TargetProperty="Margin" To="8,0,0,-18" Duration="0:0:.2"/>
+                <ThicknessAnimation Storyboard.TargetName="TextBlockError" Storyboard.TargetProperty="Margin" To="9,0,0,-18" Duration="0:0:.2"/>
             </Storyboard>
             <Storyboard x:Key="StoryboardHidden">
-                <ThicknessAnimation Storyboard.TargetName="TextBlockError" Storyboard.TargetProperty="Margin" To="8,0,0,4" Duration="0:0:0"/>
+                <ThicknessAnimation Storyboard.TargetName="TextBlockError" Storyboard.TargetProperty="Margin" To="9,0,0,4" Duration="0:0:0"/>
             </Storyboard>
         </ControlTemplate.Resources>
         <Grid >
@@ -542,16 +541,16 @@
             <Popup Grid.Row="1" Grid.Column="0" x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Margin="1" PopupAnimation="{StaticResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
                 <Border CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" x:Name="dropDownBorder" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{Binding ActualWidth, ElementName=toggleButton}" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Background="{DynamicResource RegionBrush}">
                     <ScrollViewer Margin="0,4" x:Name="DropDownScrollViewer">
-                        <Grid x:Name="grid" RenderOptions.ClearTypeHint="Enabled">
-                            <Canvas x:Name="canvas" HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
+                        <controls:SimplePanel RenderOptions.ClearTypeHint="Enabled">
+                            <Canvas HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
                                 <Rectangle x:Name="opaqueRect" Fill="{Binding Background, ElementName=dropDownBorder}" Height="{Binding ActualHeight, ElementName=dropDownBorder}" Width="{Binding ActualWidth, ElementName=dropDownBorder}"/>
                             </Canvas>
-                            <ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                        </Grid>
+                            <ItemsPresenter KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
+                        </controls:SimplePanel>
                     </ScrollViewer>
                 </Border>
             </Popup>
-            <TextBlock Grid.Column="0" Grid.ColumnSpan="2" FontSize="12" Text="{TemplateBinding ErrorStr}" Name="TextBlockError" VerticalAlignment="Bottom" Margin="8,0,0,4" Foreground="{DynamicResource DangerBrush}" Grid.Row="1"/>
+            <TextBlock Grid.Column="0" Grid.ColumnSpan="2" FontSize="12" Text="{TemplateBinding ErrorStr}" Name="TextBlockError" VerticalAlignment="Bottom" Margin="9,0,0,4" Foreground="{DynamicResource DangerBrush}" Grid.Row="1"/>
             <ToggleButton Grid.Row="1" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Padding="{TemplateBinding Padding}" Content="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}" Grid.Column="0" x:Name="toggleButton" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" IsChecked="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Style="{StaticResource ComboBoxWatermarkToggleButton}"/>
             <Border Grid.Row="1" Grid.Column="0" Margin="1,0">
                 <ContentPresenter Margin="{TemplateBinding Padding}" x:Name="contentPresenter" ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}" ContentTemplateSelector="{TemplateBinding ItemTemplateSelector}" Content="{TemplateBinding SelectionBoxItem}" ContentStringFormat="{TemplateBinding SelectionBoxItemStringFormat}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" IsHitTestVisible="false" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
@@ -617,10 +616,10 @@
     <ControlTemplate x:Key="ComboBoxPlusLeftTemplate" TargetType="controls:ComboBox">
         <ControlTemplate.Resources>
             <Storyboard x:Key="StoryboardShow">
-                <ThicknessAnimation Storyboard.TargetName="TextBlockError" Storyboard.TargetProperty="Margin" To="8,0,0,-18" Duration="0:0:.2"/>
+                <ThicknessAnimation Storyboard.TargetName="TextBlockError" Storyboard.TargetProperty="Margin" To="9,0,0,-18" Duration="0:0:.2"/>
             </Storyboard>
             <Storyboard x:Key="StoryboardHidden">
-                <ThicknessAnimation Storyboard.TargetName="TextBlockError" Storyboard.TargetProperty="Margin" To="8,0,0,4" Duration="0:0:0"/>
+                <ThicknessAnimation Storyboard.TargetName="TextBlockError" Storyboard.TargetProperty="Margin" To="9,0,0,4" Duration="0:0:0"/>
             </Storyboard>
         </ControlTemplate.Resources>
         <Grid x:Name="templateRoot" SnapsToDevicePixels="true" Height="{Binding Path=(controls:InfoElement.ContentHeight),RelativeSource={RelativeSource TemplatedParent}}">
@@ -629,23 +628,23 @@
                 <ColumnDefinition/>
                 <ColumnDefinition Width="Auto" MinWidth="30"/>
             </Grid.ColumnDefinitions>
-            <StackPanel VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="0,7,6,8" Visibility="{Binding Path=(controls:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource String2VisibilityConverter}}" Orientation="Horizontal">
+            <StackPanel VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="0,8,6,8" Visibility="{Binding Path=(controls:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource String2VisibilityConverter}}" Orientation="Horizontal">
                 <TextBlock Text="{Binding Path=(controls:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent}}"/>
                 <ContentPresenter TextElement.Foreground="{DynamicResource DangerBrush}" Margin="4,0,0,0" Content="{Binding Path=(controls:InfoElement.Symbol),RelativeSource={RelativeSource TemplatedParent}}" Visibility="{Binding Path=(controls:InfoElement.Necessary),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource Boolean2VisibilityConverter}}"/>
             </StackPanel>
             <Popup Grid.Column="1" x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Margin="1" PopupAnimation="{StaticResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
                 <Border CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" x:Name="dropDownBorder" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{Binding ActualWidth, ElementName=templateRoot}" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Background="{DynamicResource RegionBrush}">
                     <ScrollViewer Margin="0,4" x:Name="DropDownScrollViewer">
-                        <Grid x:Name="grid" RenderOptions.ClearTypeHint="Enabled">
-                            <Canvas x:Name="canvas" HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
+                        <controls:SimplePanel RenderOptions.ClearTypeHint="Enabled">
+                            <Canvas HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
                                 <Rectangle x:Name="opaqueRect" Fill="{Binding Background, ElementName=dropDownBorder}" Height="{Binding ActualHeight, ElementName=dropDownBorder}" Width="{Binding ActualWidth, ElementName=dropDownBorder}"/>
                             </Canvas>
-                            <ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                        </Grid>
+                            <ItemsPresenter KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
+                        </controls:SimplePanel>
                     </ScrollViewer>
                 </Border>
             </Popup>
-            <TextBlock Grid.Column="1" Grid.ColumnSpan="2" FontSize="12" Text="{TemplateBinding ErrorStr}" Name="TextBlockError" VerticalAlignment="Bottom" Margin="8,0,0,4" Foreground="{DynamicResource DangerBrush}"/>
+            <TextBlock Grid.Column="1" Grid.ColumnSpan="2" FontSize="12" Text="{TemplateBinding ErrorStr}" Name="TextBlockError" VerticalAlignment="Bottom" Margin="9,0,0,4" Foreground="{DynamicResource DangerBrush}"/>
             <ToggleButton Grid.Column="1" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Padding="{TemplateBinding Padding}" Content="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}" x:Name="toggleButton" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" IsChecked="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Style="{StaticResource ComboBoxWatermarkToggleButton}"/>
             <Border Grid.Column="1" Margin="1,0">
                 <ContentPresenter Margin="{TemplateBinding Padding}" x:Name="contentPresenter" ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}" ContentTemplateSelector="{TemplateBinding ItemTemplateSelector}" Content="{TemplateBinding SelectionBoxItem}" ContentStringFormat="{TemplateBinding SelectionBoxItemStringFormat}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" IsHitTestVisible="false" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
@@ -711,10 +710,10 @@
     <ControlTemplate x:Key="ComboBoxPlusEditableTopTemplate" TargetType="controls:ComboBox">
         <ControlTemplate.Resources>
             <Storyboard x:Key="StoryboardShow">
-                <ThicknessAnimation Storyboard.TargetName="TextBlockError" Storyboard.TargetProperty="Margin" To="8,0,0,-18" Duration="0:0:.2"/>
+                <ThicknessAnimation Storyboard.TargetName="TextBlockError" Storyboard.TargetProperty="Margin" To="9,0,0,-18" Duration="0:0:.2"/>
             </Storyboard>
             <Storyboard x:Key="StoryboardHidden">
-                <ThicknessAnimation Storyboard.TargetName="TextBlockError" Storyboard.TargetProperty="Margin" To="8,0,0,4" Duration="0:0:0"/>
+                <ThicknessAnimation Storyboard.TargetName="TextBlockError" Storyboard.TargetProperty="Margin" To="9,0,0,4" Duration="0:0:0"/>
             </Storyboard>
         </ControlTemplate.Resources>
         <Grid x:Name="templateRoot" SnapsToDevicePixels="true">
@@ -733,16 +732,16 @@
             <Popup Grid.Column="0" Grid.Row="1" x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, RelativeSource={RelativeSource TemplatedParent}}" PopupAnimation="{StaticResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
                 <Border CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" x:Name="dropDownBorder" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{Binding ActualWidth, ElementName=templateRoot}" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Background="{DynamicResource RegionBrush}">
                     <ScrollViewer Margin="0,4" x:Name="DropDownScrollViewer">
-                        <Grid x:Name="grid" RenderOptions.ClearTypeHint="Enabled">
-                            <Canvas x:Name="canvas" HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
+                        <controls:SimplePanel RenderOptions.ClearTypeHint="Enabled">
+                            <Canvas HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
                                 <Rectangle x:Name="opaqueRect" Fill="{Binding Background, ElementName=dropDownBorder}" Height="{Binding ActualHeight, ElementName=dropDownBorder}" Width="{Binding ActualWidth, ElementName=dropDownBorder}"/>
                             </Canvas>
-                            <ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                        </Grid>
+                            <ItemsPresenter KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
+                        </controls:SimplePanel>
                     </ScrollViewer>
                 </Border>
             </Popup>
-            <TextBlock Grid.Column="0" Grid.ColumnSpan="2" FontSize="12" Text="{TemplateBinding ErrorStr}" Name="TextBlockError" VerticalAlignment="Bottom" Margin="8,0,0,4" Foreground="{DynamicResource DangerBrush}" Grid.Row="1"/>
+            <TextBlock Grid.Column="0" Grid.ColumnSpan="2" FontSize="12" Text="{TemplateBinding ErrorStr}" Name="TextBlockError" VerticalAlignment="Bottom" Margin="9,0,0,4" Foreground="{DynamicResource DangerBrush}" Grid.Row="1"/>
             <ToggleButton Grid.Row="1" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Padding="{TemplateBinding Padding}" Content="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}" Grid.Column="0" x:Name="toggleButton" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" IsChecked="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Style="{StaticResource ComboBoxWatermarkToggleButton}"/>
             <Border Grid.Row="1" Grid.Column="0" x:Name="border" Margin="-1,1">
                 <TextBox x:Name="PART_EditableTextBox" Padding="{TemplateBinding Padding}" Background="{TemplateBinding Background}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" IsReadOnly="{Binding IsReadOnly, RelativeSource={RelativeSource TemplatedParent}}" Style="{StaticResource ComboBoxEditableTextBox}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"/>
@@ -963,10 +962,10 @@
     <ControlTemplate x:Key="ComboBoxPlusEditableLeftTemplate" TargetType="controls:ComboBox">
         <ControlTemplate.Resources>
             <Storyboard x:Key="StoryboardShow">
-                <ThicknessAnimation Storyboard.TargetName="TextBlockError" Storyboard.TargetProperty="Margin" To="8,0,0,-18" Duration="0:0:.2"/>
+                <ThicknessAnimation Storyboard.TargetName="TextBlockError" Storyboard.TargetProperty="Margin" To="9,0,0,-18" Duration="0:0:.2"/>
             </Storyboard>
             <Storyboard x:Key="StoryboardHidden">
-                <ThicknessAnimation Storyboard.TargetName="TextBlockError" Storyboard.TargetProperty="Margin" To="8,0,0,4" Duration="0:0:0"/>
+                <ThicknessAnimation Storyboard.TargetName="TextBlockError" Storyboard.TargetProperty="Margin" To="9,0,0,4" Duration="0:0:0"/>
             </Storyboard>
         </ControlTemplate.Resources>
         <Grid x:Name="templateRoot" SnapsToDevicePixels="true" Height="{Binding Path=(controls:InfoElement.ContentHeight),RelativeSource={RelativeSource TemplatedParent}}">
@@ -975,23 +974,23 @@
                 <ColumnDefinition/>
                 <ColumnDefinition Width="Auto" MinWidth="30"/>
             </Grid.ColumnDefinitions>
-            <StackPanel VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="0,7,6,8" Visibility="{Binding Path=(controls:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource String2VisibilityConverter}}" Orientation="Horizontal">
+            <StackPanel VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="0,8,6,8" Visibility="{Binding Path=(controls:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource String2VisibilityConverter}}" Orientation="Horizontal">
                 <TextBlock Text="{Binding Path=(controls:InfoElement.Title),RelativeSource={RelativeSource TemplatedParent}}"/>
                 <ContentPresenter TextElement.Foreground="{DynamicResource DangerBrush}" Margin="4,0,0,0" Content="{Binding Path=(controls:InfoElement.Symbol),RelativeSource={RelativeSource TemplatedParent}}" Visibility="{Binding Path=(controls:InfoElement.Necessary),RelativeSource={RelativeSource TemplatedParent},Converter={StaticResource Boolean2VisibilityConverter}}"/>
             </StackPanel>
             <Popup Grid.Column="1" x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, RelativeSource={RelativeSource TemplatedParent}}" PopupAnimation="{StaticResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
                 <Border CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" x:Name="dropDownBorder" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{Binding ActualWidth, ElementName=templateRoot}" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Background="{DynamicResource RegionBrush}">
                     <ScrollViewer Margin="0,4" x:Name="DropDownScrollViewer">
-                        <Grid x:Name="grid" RenderOptions.ClearTypeHint="Enabled">
-                            <Canvas x:Name="canvas" HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
+                        <controls:SimplePanel RenderOptions.ClearTypeHint="Enabled">
+                            <Canvas HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
                                 <Rectangle x:Name="opaqueRect" Fill="{Binding Background, ElementName=dropDownBorder}" Height="{Binding ActualHeight, ElementName=dropDownBorder}" Width="{Binding ActualWidth, ElementName=dropDownBorder}"/>
                             </Canvas>
-                            <ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                        </Grid>
+                            <ItemsPresenter KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
+                        </controls:SimplePanel>
                     </ScrollViewer>
                 </Border>
             </Popup>
-            <TextBlock Grid.Column="1" Grid.ColumnSpan="2" Text="{TemplateBinding ErrorStr}" Name="TextBlockError" VerticalAlignment="Bottom" Margin="8,0,0,4" Foreground="{DynamicResource DangerBrush}"/>
+            <TextBlock Grid.Column="1" Grid.ColumnSpan="2" Text="{TemplateBinding ErrorStr}" Name="TextBlockError" VerticalAlignment="Bottom" Margin="9,0,0,4" Foreground="{DynamicResource DangerBrush}"/>
             <ToggleButton Grid.Column="1" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Padding="{TemplateBinding Padding}" Content="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}" x:Name="toggleButton" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" IsChecked="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Style="{StaticResource ComboBoxWatermarkToggleButton}"/>
             <Border Grid.Column="1" x:Name="border" Background="Transparent" Margin="-1,1">
                 <TextBox x:Name="PART_EditableTextBox" Padding="{TemplateBinding Padding}" Background="{TemplateBinding Background}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" IsReadOnly="{Binding IsReadOnly, RelativeSource={RelativeSource TemplatedParent}}" Style="{StaticResource ComboBoxEditableTextBox}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"/>
diff --git a/src/Net_GE45/HandyControlDemo_Net_GE45/HandyControlDemo_Net_GE45.csproj b/src/Net_GE45/HandyControlDemo_Net_GE45/HandyControlDemo_Net_GE45.csproj
index a2e724d7..960af279 100644
--- a/src/Net_GE45/HandyControlDemo_Net_GE45/HandyControlDemo_Net_GE45.csproj
+++ b/src/Net_GE45/HandyControlDemo_Net_GE45/HandyControlDemo_Net_GE45.csproj
@@ -480,6 +480,9 @@
       <Generator>TextTemplatingFileGenerator</Generator>
       <LastGenOutput>MessageToken.cs</LastGenOutput>
     </Content>
+    <Resource Include="..\..\Shared\HandyControlDemo_Shared\Resources\Img\LeftMainContent\Procedure_16x.png">
+      <Link>Resources\Img\LeftMainContent\Procedure_16x.png</Link>
+    </Resource>
     <Resource Include="..\..\Shared\HandyControlDemo_Shared\Resources\Img\LeftMainContent\HandyControl.png">
       <Link>Resources\Img\LeftMainContent\HandyControl.png</Link>
     </Resource>
diff --git a/src/Net_GE45/HandyControl_Net_GE45/Themes/Styles/Base/ComboBoxBaseStyle.xaml b/src/Net_GE45/HandyControl_Net_GE45/Themes/Styles/Base/ComboBoxBaseStyle.xaml
index d8f26026..ec88f225 100644
--- a/src/Net_GE45/HandyControl_Net_GE45/Themes/Styles/Base/ComboBoxBaseStyle.xaml
+++ b/src/Net_GE45/HandyControl_Net_GE45/Themes/Styles/Base/ComboBoxBaseStyle.xaml
@@ -22,7 +22,7 @@
                 <ControlTemplate TargetType="ToggleButton">
                     <Border CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="true">
                         <Border Margin="0,0,6,0" BorderThickness="1" BorderBrush="Transparent" HorizontalAlignment="Right" SnapsToDevicePixels="true" Width="{StaticResource {x:Static SystemParameters.VerticalScrollBarWidthKey}}">
-                            <Path x:Name="arrow" Data="{StaticResource DownGeometry}" Fill="{TemplateBinding BorderBrush}" HorizontalAlignment="Center" VerticalAlignment="Center"/>
+                            <Path Width="16" Height="9" x:Name="arrow" Data="{StaticResource DownGeometry}" Fill="{TemplateBinding BorderBrush}" HorizontalAlignment="Center" VerticalAlignment="Center"/>
                         </Border>
                     </Border>
                     <ControlTemplate.Triggers>
diff --git a/src/Shared/HandyControlDemo_Shared/App.xaml b/src/Shared/HandyControlDemo_Shared/App.xaml
index cdd77978..a9f0c1ee 100644
--- a/src/Shared/HandyControlDemo_Shared/App.xaml
+++ b/src/Shared/HandyControlDemo_Shared/App.xaml
@@ -6,6 +6,7 @@
              xmlns:d1P1="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:sys="clr-namespace:System;assembly=mscorlib"
              xmlns:data="clr-namespace:HandyControlDemo.Data"
+             xmlns:hc="https://handyorg.github.io/handycontrol"
              d1P1:Ignorable="d" 
              StartupUri="MainWindow.xaml">
     <Application.Resources>
@@ -35,6 +36,12 @@
                 </ObjectDataProvider.MethodParameters>
             </ObjectDataProvider>
 
+            <ObjectDataProvider x:Key="ShowAnimations" MethodName="GetValues" ObjectType="sys:Enum">
+                <ObjectDataProvider.MethodParameters>
+                    <x:Type TypeName="hc:ShowAnimation"/>
+                </ObjectDataProvider.MethodParameters>
+            </ObjectDataProvider>
+
         </ResourceDictionary>
 
     </Application.Resources>
diff --git a/src/Shared/HandyControlDemo_Shared/Data/MessageToken.cs b/src/Shared/HandyControlDemo_Shared/Data/MessageToken.cs
index 1e09db7a..982af49c 100644
--- a/src/Shared/HandyControlDemo_Shared/Data/MessageToken.cs
+++ b/src/Shared/HandyControlDemo_Shared/Data/MessageToken.cs
@@ -112,6 +112,8 @@
 	
         public static readonly string SpriteDemoCtl = nameof(SpriteDemoCtl);
 	
+        public static readonly string NotificationDemoCtl = nameof(NotificationDemoCtl);
+	
         public static readonly string ButtonDemoCtl = nameof(ButtonDemoCtl);
 
         public static readonly string RepeatButtonDemoCtl = nameof(RepeatButtonDemoCtl);
diff --git a/src/Shared/HandyControlDemo_Shared/Data/MessageToken.tt b/src/Shared/HandyControlDemo_Shared/Data/MessageToken.tt
index 5562e803..c3f93c36 100644
--- a/src/Shared/HandyControlDemo_Shared/Data/MessageToken.tt
+++ b/src/Shared/HandyControlDemo_Shared/Data/MessageToken.tt
@@ -58,7 +58,8 @@ var controlList = new List<string>
 	"ImageBlockDemoCtl",
 	"RunningBlockDemoCtl",
 	"HoneycombPanelDemoCtl",
-	"SpriteDemoCtl"
+	"SpriteDemoCtl",
+	"NotificationDemoCtl"
 };
 var styleList = new List<string>
 {
diff --git a/src/Shared/HandyControlDemo_Shared/HandyControlDemo_Shared.projitems b/src/Shared/HandyControlDemo_Shared/HandyControlDemo_Shared.projitems
index 984abb9a..8f0d5303 100644
--- a/src/Shared/HandyControlDemo_Shared/HandyControlDemo_Shared.projitems
+++ b/src/Shared/HandyControlDemo_Shared/HandyControlDemo_Shared.projitems
@@ -63,6 +63,9 @@
     <Compile Include="$(MSBuildThisFileDirectory)UserControl\Controls\MagnifierDemoCtl.xaml.cs">
       <DependentUpon>MagnifierDemoCtl.xaml</DependentUpon>
     </Compile>
+    <Compile Include="$(MSBuildThisFileDirectory)UserControl\Controls\NotificationDemoCtl.xaml.cs">
+      <DependentUpon>NotificationDemoCtl.xaml</DependentUpon>
+    </Compile>
     <Compile Include="$(MSBuildThisFileDirectory)UserControl\Controls\RangeSliderDemoCtl.xaml.cs">
       <DependentUpon>RangeSliderDemoCtl.xaml</DependentUpon>
     </Compile>
@@ -207,6 +210,9 @@
     <Compile Include="$(MSBuildThisFileDirectory)UserControl\Controls\WindowDemoCtl.xaml.cs">
       <DependentUpon>WindowDemoCtl.xaml</DependentUpon>
     </Compile>
+    <Compile Include="$(MSBuildThisFileDirectory)UserControl\Main\AppNotification.xaml.cs">
+      <DependentUpon>AppNotification.xaml</DependentUpon>
+    </Compile>
     <Compile Include="$(MSBuildThisFileDirectory)UserControl\Main\BlogsView.xaml.cs">
       <DependentUpon>BlogsView.xaml</DependentUpon>
     </Compile>
@@ -324,6 +330,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)ViewModel\Controls\DialogDemoViewModel.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ViewModel\Controls\GrowlDemoViewModel.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ViewModel\Controls\ImageBrowserDemoViewModel.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)ViewModel\Controls\NotificationDemoViewModel.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ViewModel\Controls\NotifyIconDemoViewModel.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ViewModel\Controls\PaginationDemoViewModel.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ViewModel\Controls\SearchBarDemoViewModel.cs" />
@@ -451,6 +458,10 @@
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
+    <Page Include="$(MSBuildThisFileDirectory)UserControl\Controls\NotificationDemoCtl.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
     <Page Include="$(MSBuildThisFileDirectory)UserControl\Controls\RangeSliderDemoCtl.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
@@ -643,6 +654,10 @@
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
+    <Page Include="$(MSBuildThisFileDirectory)UserControl\Main\AppNotification.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
     <Page Include="$(MSBuildThisFileDirectory)UserControl\Main\BlogsView.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
diff --git a/src/Shared/HandyControlDemo_Shared/Properties/Langs/Lang.Designer.cs b/src/Shared/HandyControlDemo_Shared/Properties/Langs/Lang.Designer.cs
index 43270cfc..65dbbbaa 100644
--- a/src/Shared/HandyControlDemo_Shared/Properties/Langs/Lang.Designer.cs
+++ b/src/Shared/HandyControlDemo_Shared/Properties/Langs/Lang.Designer.cs
@@ -852,6 +852,15 @@ namespace HandyControlDemo.Properties.Langs {
             }
         }
         
+        /// <summary>
+        ///   查找类似 桌面通知 的本地化字符串。
+        /// </summary>
+        public static string Notification {
+            get {
+                return ResourceManager.GetString("Notification", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似 托盘图标 的本地化字符串。
         /// </summary>
@@ -1320,6 +1329,15 @@ namespace HandyControlDemo.Properties.Langs {
             }
         }
         
+        /// <summary>
+        ///   查找类似 发送通知 的本地化字符串。
+        /// </summary>
+        public static string SendNotification {
+            get {
+                return ResourceManager.GetString("SendNotification", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似 徽章 的本地化字符串。
         /// </summary>
@@ -1383,6 +1401,15 @@ namespace HandyControlDemo.Properties.Langs {
             }
         }
         
+        /// <summary>
+        ///   查找类似 保持打开 的本地化字符串。
+        /// </summary>
+        public static string StaysOpen {
+            get {
+                return ResourceManager.GetString("StaysOpen", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似 步骤 的本地化字符串。
         /// </summary>
diff --git a/src/Shared/HandyControlDemo_Shared/Properties/Langs/Lang.en.resx b/src/Shared/HandyControlDemo_Shared/Properties/Langs/Lang.en.resx
index 3efb365c..7c939565 100644
--- a/src/Shared/HandyControlDemo_Shared/Properties/Langs/Lang.en.resx
+++ b/src/Shared/HandyControlDemo_Shared/Properties/Langs/Lang.en.resx
@@ -651,4 +651,13 @@
   <data name="OpenSprite" xml:space="preserve">
     <value>Open sprite</value>
   </data>
+  <data name="Notification" xml:space="preserve">
+    <value>Notification</value>
+  </data>
+  <data name="SendNotification" xml:space="preserve">
+    <value>Send notification</value>
+  </data>
+  <data name="StaysOpen" xml:space="preserve">
+    <value>Stays open</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/src/Shared/HandyControlDemo_Shared/Properties/Langs/Lang.resx b/src/Shared/HandyControlDemo_Shared/Properties/Langs/Lang.resx
index 6b168ea6..5c46a76d 100644
--- a/src/Shared/HandyControlDemo_Shared/Properties/Langs/Lang.resx
+++ b/src/Shared/HandyControlDemo_Shared/Properties/Langs/Lang.resx
@@ -651,4 +651,13 @@
   <data name="OpenSprite" xml:space="preserve">
     <value>打开精灵</value>
   </data>
+  <data name="Notification" xml:space="preserve">
+    <value>桌面通知</value>
+  </data>
+  <data name="SendNotification" xml:space="preserve">
+    <value>发送通知</value>
+  </data>
+  <data name="StaysOpen" xml:space="preserve">
+    <value>保持打开</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/src/Shared/HandyControlDemo_Shared/Resources/Img/LeftMainContent/Procedure_16x.png b/src/Shared/HandyControlDemo_Shared/Resources/Img/LeftMainContent/Procedure_16x.png
new file mode 100644
index 00000000..70f60143
Binary files /dev/null and b/src/Shared/HandyControlDemo_Shared/Resources/Img/LeftMainContent/Procedure_16x.png differ
diff --git a/src/Shared/HandyControlDemo_Shared/UserControl/Controls/NotificationDemoCtl.xaml b/src/Shared/HandyControlDemo_Shared/UserControl/Controls/NotificationDemoCtl.xaml
new file mode 100644
index 00000000..0f0cdf27
--- /dev/null
+++ b/src/Shared/HandyControlDemo_Shared/UserControl/Controls/NotificationDemoCtl.xaml
@@ -0,0 +1,18 @@
+<UserControl x:Class="HandyControlDemo.UserControl.NotificationDemoCtl"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:hc="https://handyorg.github.io/handycontrol"
+             xmlns:langs="clr-namespace:HandyControlDemo.Properties.Langs"
+             DataContext="{Binding NotificationDemo,Source={StaticResource Locator}}"
+             Width="300"
+             Background="{DynamicResource RegionBrush}">
+    <hc:TransitioningContentControl>
+        <StackPanel Margin="32" VerticalAlignment="Center">
+            <ComboBox SelectedValue="{Binding ShowAnimation}" ItemsSource="{Binding Source={StaticResource ShowAnimations}}"/>
+            <hc:ButtonGroup Margin="0,16,0,0">
+                <ToggleButton Content="{x:Static langs:Lang.StaysOpen}" IsChecked="{Binding StaysOpen}"/>
+                <Button Command="{Binding OpenCmd}" Content="{x:Static langs:Lang.SendNotification}"/>
+            </hc:ButtonGroup>
+        </StackPanel>
+    </hc:TransitioningContentControl>
+</UserControl>
diff --git a/src/Shared/HandyControlDemo_Shared/UserControl/Controls/NotificationDemoCtl.xaml.cs b/src/Shared/HandyControlDemo_Shared/UserControl/Controls/NotificationDemoCtl.xaml.cs
new file mode 100644
index 00000000..4a86ef88
--- /dev/null
+++ b/src/Shared/HandyControlDemo_Shared/UserControl/Controls/NotificationDemoCtl.xaml.cs
@@ -0,0 +1,10 @@
+namespace HandyControlDemo.UserControl
+{
+    public partial class NotificationDemoCtl
+    {
+        public NotificationDemoCtl()
+        {
+            InitializeComponent();
+        }
+    }
+}
diff --git a/src/Shared/HandyControlDemo_Shared/UserControl/Main/AppNotification.xaml b/src/Shared/HandyControlDemo_Shared/UserControl/Main/AppNotification.xaml
new file mode 100644
index 00000000..f9183960
--- /dev/null
+++ b/src/Shared/HandyControlDemo_Shared/UserControl/Main/AppNotification.xaml
@@ -0,0 +1,13 @@
+<Border x:Class="HandyControlDemo.UserControl.AppNotification"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:hc="https://handyorg.github.io/handycontrol"
+             Background="White"
+             Width="320"
+             Height="518">
+    <hc:SimplePanel>
+        <Path Margin="0,36,0,0" VerticalAlignment="Top" Width="70" Height="70" Data="{StaticResource LogoGeometry}" Fill="#f06632"/>
+        <TextBlock Text="HandyControl" FontSize="30" Foreground="{StaticResource PrimaryBrush}" HorizontalAlignment="Center" Margin="0,122,0,0" VerticalAlignment="Top"/>
+        <Button Command="hc:ControlCommands.CloseWindow" CommandParameter="{Binding RelativeSource={RelativeSource Self}}" Content="{x:Static hc:Lang.Close}" HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="10,0,10,10"/>
+    </hc:SimplePanel>
+</Border>
diff --git a/src/Shared/HandyControlDemo_Shared/UserControl/Main/AppNotification.xaml.cs b/src/Shared/HandyControlDemo_Shared/UserControl/Main/AppNotification.xaml.cs
new file mode 100644
index 00000000..ffc76c31
--- /dev/null
+++ b/src/Shared/HandyControlDemo_Shared/UserControl/Main/AppNotification.xaml.cs
@@ -0,0 +1,10 @@
+namespace HandyControlDemo.UserControl
+{
+    public partial class AppNotification
+    {
+        public AppNotification()
+        {
+            InitializeComponent();
+        }
+    }
+}
diff --git a/src/Shared/HandyControlDemo_Shared/UserControl/Main/LeftMainContent.xaml b/src/Shared/HandyControlDemo_Shared/UserControl/Main/LeftMainContent.xaml
index 9f3b9c51..92ecd073 100644
--- a/src/Shared/HandyControlDemo_Shared/UserControl/Main/LeftMainContent.xaml
+++ b/src/Shared/HandyControlDemo_Shared/UserControl/Main/LeftMainContent.xaml
@@ -200,7 +200,7 @@
                                 <Image Source="../../Resources/Img/LeftMainContent/ImageStack_16x.png"/>
                             </hc:EdgeElement.LeftContent>
                         </ListBoxItem>
-                        <ListBoxItem Style="{StaticResource ListBoxItemNew}" Tag="{x:Static data:MessageToken.MagnifierDemoCtl}" Content="{x:Static langs:Lang.Magnifier}">
+                        <ListBoxItem Tag="{x:Static data:MessageToken.MagnifierDemoCtl}" Content="{x:Static langs:Lang.Magnifier}">
                             <hc:EdgeElement.LeftContent>
                                 <Image Source="../../Resources/Img/LeftMainContent/Search_16x.png"/>
                             </hc:EdgeElement.LeftContent>
@@ -450,6 +450,11 @@
                                 <Image Source="../../Resources/Img/LeftMainContent/HandyControl.png"/>
                             </hc:EdgeElement.LeftContent>
                         </ListBoxItem>
+                        <ListBoxItem Style="{StaticResource ListBoxItemNew}" Tag="{x:Static data:MessageToken.NotificationDemoCtl}" Content="{x:Static langs:Lang.Notification}">
+                            <hc:EdgeElement.LeftContent>
+                                <Image Source="../../Resources/Img/LeftMainContent/Procedure_16x.png"/>
+                            </hc:EdgeElement.LeftContent>
+                        </ListBoxItem>
                         <ListBoxItem Tag="{x:Static data:MessageToken.DialogDemoCtl}" Content="{x:Static langs:Lang.Dialog}">
                             <hc:EdgeElement.LeftContent>
                                 <Image Source="../../Resources/Img/LeftMainContent/Dialog_16x.png"/>
diff --git a/src/Shared/HandyControlDemo_Shared/ViewModel/Basic/InteractiveDialogViewModel.cs b/src/Shared/HandyControlDemo_Shared/ViewModel/Basic/InteractiveDialogViewModel.cs
index 2406d7a3..d9a19626 100644
--- a/src/Shared/HandyControlDemo_Shared/ViewModel/Basic/InteractiveDialogViewModel.cs
+++ b/src/Shared/HandyControlDemo_Shared/ViewModel/Basic/InteractiveDialogViewModel.cs
@@ -7,7 +7,7 @@ using GalaSoft.MvvmLight.CommandWpf;
 #endif
 using HandyControl.Tools.Extension;
 
-namespace HandyControlDemo.ViewModel.Basic
+namespace HandyControlDemo.ViewModel
 {
     public class InteractiveDialogViewModel : ViewModelBase, IDialogResultable<string>
     {
diff --git a/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/BadgeDemoViewModel.cs b/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/BadgeDemoViewModel.cs
index ada4f4fe..5570cc4e 100644
--- a/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/BadgeDemoViewModel.cs
+++ b/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/BadgeDemoViewModel.cs
@@ -6,7 +6,7 @@ using GalaSoft.MvvmLight.Command;
 using GalaSoft.MvvmLight.CommandWpf;
 #endif
 
-namespace HandyControlDemo.ViewModel.Controls
+namespace HandyControlDemo.ViewModel
 {
     public class BadgeDemoViewModel : ViewModelBase
     {
diff --git a/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/DialogDemoViewModel.cs b/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/DialogDemoViewModel.cs
index cb149c85..e3c1a08e 100644
--- a/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/DialogDemoViewModel.cs
+++ b/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/DialogDemoViewModel.cs
@@ -11,7 +11,6 @@ using HandyControl.Controls;
 using HandyControl.Tools.Extension;
 using HandyControlDemo.Data;
 using HandyControlDemo.UserControl;
-using HandyControlDemo.ViewModel.Basic;
 using HandyControlDemo.Window;
 
 namespace HandyControlDemo.ViewModel
diff --git a/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/NotificationDemoViewModel.cs b/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/NotificationDemoViewModel.cs
new file mode 100644
index 00000000..8e005cf1
--- /dev/null
+++ b/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/NotificationDemoViewModel.cs
@@ -0,0 +1,35 @@
+#if netle40
+using GalaSoft.MvvmLight.Command;
+#else
+using GalaSoft.MvvmLight.CommandWpf;
+# endif
+using System;
+using GalaSoft.MvvmLight;
+using HandyControl.Controls;
+using HandyControl.Data;
+using HandyControlDemo.UserControl;
+
+namespace HandyControlDemo.ViewModel
+{
+    public class NotificationDemoViewModel : ViewModelBase
+    {
+        public RelayCommand OpenCmd => new Lazy<RelayCommand>(() =>
+            new RelayCommand(() => Notification.Show(new AppNotification(), ShowAnimation, StaysOpen))).Value;
+
+        private ShowAnimation _showAnimation;
+
+        public ShowAnimation ShowAnimation
+        {
+            get => _showAnimation;
+            set => Set(ref _showAnimation, value);
+        }
+
+        private bool _staysOpen = true;
+
+        public bool StaysOpen
+        {
+            get => _staysOpen;
+            set => Set(ref _staysOpen, value);
+        }
+    }
+}
diff --git a/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/SpriteDemoViewModel.cs b/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/SpriteDemoViewModel.cs
index 46d154ab..b6bc4fe0 100644
--- a/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/SpriteDemoViewModel.cs
+++ b/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/SpriteDemoViewModel.cs
@@ -1,5 +1,4 @@
 using System;
-using GalaSoft.MvvmLight;
 using HandyControl.Controls;
 using HandyControlDemo.UserControl;
 #if netle40
@@ -8,9 +7,9 @@ using GalaSoft.MvvmLight.Command;
 using GalaSoft.MvvmLight.CommandWpf;
 # endif
 
-namespace HandyControlDemo
+namespace HandyControlDemo.ViewModel
 {
-    public class SpriteDemoViewModel : ViewModelBase
+    public class SpriteDemoViewModel
     {
         public RelayCommand OpenCmd => new Lazy<RelayCommand>(() =>
             new RelayCommand(()=> Sprite.Show(new AppSprite()))).Value;
diff --git a/src/Shared/HandyControlDemo_Shared/ViewModel/ViewModelLocator.cs b/src/Shared/HandyControlDemo_Shared/ViewModel/ViewModelLocator.cs
index a623d046..d8e4b51f 100644
--- a/src/Shared/HandyControlDemo_Shared/ViewModel/ViewModelLocator.cs
+++ b/src/Shared/HandyControlDemo_Shared/ViewModel/ViewModelLocator.cs
@@ -4,8 +4,6 @@ using CommonServiceLocator;
 using GalaSoft.MvvmLight.Ioc;
 using HandyControlDemo.Data;
 using HandyControlDemo.Service;
-using HandyControlDemo.ViewModel.Basic;
-using HandyControlDemo.ViewModel.Controls;
 
 namespace HandyControlDemo.ViewModel
 {
@@ -40,6 +38,7 @@ namespace HandyControlDemo.ViewModel
             SimpleIoc.Default.Register<NoUserViewModel>();
             SimpleIoc.Default.Register<CardDemoViewModel>();
             SimpleIoc.Default.Register<SpriteDemoViewModel>();
+            SimpleIoc.Default.Register<NotificationDemoViewModel>();
         }
 
         public static ViewModelLocator Instance => new Lazy<ViewModelLocator>(() =>
@@ -93,6 +92,8 @@ namespace HandyControlDemo.ViewModel
 
         public SpriteDemoViewModel SpriteDemo => ServiceLocator.Current.GetInstance<SpriteDemoViewModel>();
 
+        public NotificationDemoViewModel NotificationDemo => ServiceLocator.Current.GetInstance<NotificationDemoViewModel>();
+
         #endregion
     }
 }
\ No newline at end of file
diff --git a/src/Shared/HandyControl_Shared/Controls/Other/Notification.cs b/src/Shared/HandyControl_Shared/Controls/Other/Notification.cs
new file mode 100644
index 00000000..11a05e84
--- /dev/null
+++ b/src/Shared/HandyControl_Shared/Controls/Other/Notification.cs
@@ -0,0 +1,155 @@
+using System;
+using System.ComponentModel;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Threading;
+using HandyControl.Data;
+using HandyControl.Tools;
+
+namespace HandyControl.Controls
+{
+    public sealed class Notification : System.Windows.Window
+    {
+        private const int WaitTime = 6;
+
+        /// <summary>
+        ///     计数
+        /// </summary>
+        private int _tickCount;
+
+        /// <summary>
+        ///     关闭计时器
+        /// </summary>
+        private DispatcherTimer _timerClose;
+
+        private ShowAnimation ShowAnimation { get; set; }
+
+        private bool _shouldBeClosed;
+
+        public Notification()
+        {
+            WindowStyle = WindowStyle.None;
+            AllowsTransparency = true;
+        }
+
+        public static Notification Show(object content, ShowAnimation showAnimation = ShowAnimation.None, bool staysOpen = false)
+        {
+            var notification = new Notification
+            {
+                Content = content,
+                Opacity = 0,
+                ShowAnimation = showAnimation
+            };
+
+            notification.Show();
+
+            var desktopWorkingArea = SystemParameters.WorkArea;
+            var leftMax = desktopWorkingArea.Width - notification.ActualWidth;
+            var topMax = desktopWorkingArea.Height - notification.ActualHeight;
+
+            switch (showAnimation)
+            {
+                case ShowAnimation.None:
+                    notification.Opacity = 1;
+                    notification.Left = leftMax;
+                    notification.Top = topMax;
+                    break;
+                case ShowAnimation.HorizontalMove:
+                    notification.Opacity = 1;
+                    notification.Left = desktopWorkingArea.Width;
+                    notification.Top = topMax;
+                    notification.BeginAnimation(LeftProperty, AnimationHelper.CreateAnimation(leftMax));
+                    break;
+                case ShowAnimation.verticalMove:
+                    notification.Opacity = 1;
+                    notification.Left = leftMax;
+                    notification.Top = desktopWorkingArea.Height;
+                    notification.BeginAnimation(TopProperty, AnimationHelper.CreateAnimation(topMax));
+                    break;
+                case ShowAnimation.Fade:
+                    notification.Left = leftMax;
+                    notification.Top = topMax;
+                    notification.BeginAnimation(OpacityProperty, AnimationHelper.CreateAnimation(1));
+                    break;
+                default:
+                    notification.Opacity = 1;
+                    notification.Left = leftMax;
+                    notification.Top = topMax;
+                    break;
+            }
+
+            if (!staysOpen) notification.StartTimer();
+
+            return notification;
+        }
+
+        protected override void OnClosing(CancelEventArgs e)
+        {
+            base.OnClosing(e);
+
+            if (_shouldBeClosed)
+            {
+                return;
+            }
+            var desktopWorkingArea = SystemParameters.WorkArea;
+
+            switch (ShowAnimation)
+            {
+                case ShowAnimation.None:
+                    break;
+                case ShowAnimation.HorizontalMove:
+                    {
+                        var animation = AnimationHelper.CreateAnimation(desktopWorkingArea.Width);
+                        animation.Completed += Animation_Completed;
+                        BeginAnimation(LeftProperty, animation);
+                        e.Cancel = true;
+                        _shouldBeClosed = true;
+                    }
+                    break;
+                case ShowAnimation.verticalMove:
+                    {
+                        var animation = AnimationHelper.CreateAnimation(desktopWorkingArea.Height);
+                        animation.Completed += Animation_Completed;
+                        BeginAnimation(TopProperty, animation);
+                        e.Cancel = true;
+                        _shouldBeClosed = true;
+                    }
+                    break;
+                case ShowAnimation.Fade:
+                    {
+                        var animation = AnimationHelper.CreateAnimation(0);
+                        animation.Completed += Animation_Completed;
+                        BeginAnimation(OpacityProperty, animation);
+                        e.Cancel = true;
+                        _shouldBeClosed = true;
+                    }
+                    break;
+            }
+        }
+
+        private void Animation_Completed(object sender, EventArgs e) => Close();
+
+        /// <summary>
+        ///     开始计时器
+        /// </summary>
+        private void StartTimer()
+        {
+            _timerClose = new DispatcherTimer
+            {
+                Interval = TimeSpan.FromSeconds(1)
+            };
+            _timerClose.Tick += delegate
+            {
+                if (IsMouseOver)
+                {
+                    _tickCount = 0;
+                    return;
+                }
+
+                _tickCount++;
+                if (_tickCount >= WaitTime) Close();
+            };
+            _timerClose.Start();
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Shared/HandyControl_Shared/Data/Enum/ShowAnimation.cs b/src/Shared/HandyControl_Shared/Data/Enum/ShowAnimation.cs
new file mode 100644
index 00000000..ba230aae
--- /dev/null
+++ b/src/Shared/HandyControl_Shared/Data/Enum/ShowAnimation.cs
@@ -0,0 +1,10 @@
+namespace HandyControl.Data
+{
+    public enum ShowAnimation
+    {
+        None,
+        HorizontalMove,
+        verticalMove,
+        Fade
+    }
+}
\ No newline at end of file
diff --git a/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems b/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
index 09c934eb..f6f529e4 100644
--- a/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
+++ b/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
@@ -24,6 +24,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Other\Magnifier.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Other\ButtonGroup.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Other\Card.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Controls\Other\Notification.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Other\Sprite.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Other\ToggleBlock.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Panel\HoneycombPanel.cs" />
@@ -31,6 +32,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Slider\RangeSlider\RangeThumb.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Slider\RangeSlider\TwoWayRangeBase.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Other\RunningBlock.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Data\Enum\ShowAnimation.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Interactivity\Commands\CloseWindowCommand.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Interactivity\Commands\OpenLinkCommand.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Tools\Converter\BorderCircularClipConverter.cs" />
@@ -688,6 +690,10 @@
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
+    <Page Include="$(MSBuildThisFileDirectory)Themes\Styles\Notification.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
     <Page Include="$(MSBuildThisFileDirectory)Themes\Styles\NumericUpDown.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Notification.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Notification.xaml
new file mode 100644
index 00000000..04559201
--- /dev/null
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Notification.xaml
@@ -0,0 +1,22 @@
+<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+                    xmlns:controls="clr-namespace:HandyControl.Controls">
+
+    <Style TargetType="controls:Notification">
+        <Setter Property="controls:WindowAttach.IgnoreAltF4" Value="True"/>
+        <Setter Property="controls:WindowAttach.ShowInTaskManager" Value="False"/>
+        <Setter Property="SizeToContent" Value="WidthAndHeight"/>
+        <Setter Property="ResizeMode" Value="NoResize"/>
+        <Setter Property="Background" Value="Transparent"/>
+        <Setter Property="ShowActivated" Value="False"/>
+        <Setter Property="ShowInTaskbar" Value="False"/>
+        <Setter Property="Topmost" Value="True"/>
+        <Setter Property="Template">
+            <Setter.Value>
+                <ControlTemplate TargetType="controls:Notification">
+                    <ContentPresenter Margin="{TemplateBinding Padding}" HorizontalAlignment="Center" VerticalAlignment="Center"/>
+                </ControlTemplate>
+            </Setter.Value>
+        </Setter>
+    </Style>
+
+</ResourceDictionary>
\ No newline at end of file
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Style.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Style.xaml
index a7ccfe6f..93b2485a 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Style.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Style.xaml
@@ -72,6 +72,7 @@
         <ResourceDictionary Source="ToggleBlock.xaml"/>
         <ResourceDictionary Source="RunningBlock.xaml"/>
         <ResourceDictionary Source="Sprite.xaml"/>
+        <ResourceDictionary Source="Notification.xaml"/>
     </ResourceDictionary.MergedDictionaries>
 
 </ResourceDictionary>
\ No newline at end of file