diff --git a/HandyControl/Themes/Styles/Base/PasswordBoxBaseStyle.xaml b/HandyControl/Themes/Styles/Base/PasswordBoxBaseStyle.xaml
index 602f6cac..6c8abed3 100644
--- a/HandyControl/Themes/Styles/Base/PasswordBoxBaseStyle.xaml
+++ b/HandyControl/Themes/Styles/Base/PasswordBoxBaseStyle.xaml
@@ -60,7 +60,7 @@
                 <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>
             <Border x:Name="border" Grid.Row="1" CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True"/>
-            <TextBlock FontSize="{TemplateBinding FontSize}" x:Name="placeholder" Visibility="Collapsed" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="{TemplateBinding Padding}" Grid.Row="1" HorizontalAlignment="Stretch" Style="{StaticResource TextBlockDefaultThiLight}" Text="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}"/>
+            <TextBlock x:Name="placeholder" Padding="1" Visibility="Collapsed" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="{TemplateBinding Padding}" Grid.Row="1" HorizontalAlignment="Stretch" Style="{StaticResource TextBlockDefaultThiLight}" Text="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}"/>
             <ScrollViewer Margin="-1,1" Padding="{TemplateBinding Padding}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" Grid.Row="1" x:Name="PART_ContentHost" Focusable="false" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden"/>
         </Grid>
         <ControlTemplate.Triggers>
@@ -92,7 +92,7 @@
                 <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>
             <Border x:Name="border" Grid.Column="1" CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True"/>
-            <TextBlock FontSize="{TemplateBinding FontSize}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="{TemplateBinding Padding}" x:Name="placeholder" Visibility="Collapsed" Grid.Column="1" HorizontalAlignment="Stretch" Style="{StaticResource TextBlockDefaultThiLight}" Text="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}"/>
+            <TextBlock Padding="1" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="{TemplateBinding Padding}" x:Name="placeholder" Visibility="Collapsed" Grid.Column="1" HorizontalAlignment="Stretch" Style="{StaticResource TextBlockDefaultThiLight}" Text="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}"/>
             <ScrollViewer Margin="-1,1" Padding="{TemplateBinding Padding}" Grid.Column="1" x:Name="PART_ContentHost" Focusable="false" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden"/>
         </Grid>
         <ControlTemplate.Triggers>
@@ -141,7 +141,7 @@
             <Setter.Value>
                 <ControlTemplate TargetType="PasswordBox">
                     <controls:SimplePanel>
-                        <TextBlock Margin="2,-1" FontSize="{TemplateBinding FontSize}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Padding="{TemplateBinding Padding}" x:Name="placeholder" Visibility="Collapsed" HorizontalAlignment="Stretch" Style="{StaticResource TextBlockDefaultThiLight}" Text="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}"/>
+                        <TextBlock Margin="2,-1" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Padding="{TemplateBinding Padding}" x:Name="placeholder" Visibility="Collapsed" HorizontalAlignment="Stretch" Style="{StaticResource TextBlockDefaultThiLight}" Text="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}"/>
                         <ScrollViewer Padding="{TemplateBinding Padding}" x:Name="PART_ContentHost" Focusable="false" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden"/>
                     </controls:SimplePanel>
                     <ControlTemplate.Triggers>
@@ -180,7 +180,7 @@
                 <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>
             <TextBlock FontSize="12" Grid.Column="0" Grid.ColumnSpan="2" Text="{TemplateBinding ErrorStr}" Name="TextBlockError" VerticalAlignment="Bottom" Margin="9,0,0,4" Foreground="{DynamicResource DangerBrush}" Grid.Row="1"/>
-            <Border x:Name="border" Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True"/>
+            <Border Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True"/>
             <PasswordBox Margin="-1,1,0,1" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" Padding="{TemplateBinding Padding}" Background="{TemplateBinding Background}" Foreground="{TemplateBinding Foreground}" Grid.Column="0" Grid.Row="1" x:Name="PART_PasswordBox" PasswordChar="{TemplateBinding PasswordChar}" Style="{StaticResource PasswordBoxPlusInternalStyle}"/>
             <Button Grid.Row="1" Grid.Column="1" Command="interactivity:ControlCommands.Clear" Margin="0,0,7,0" Visibility="Collapsed" Name="ButtonClear" Width="16" Style="{StaticResource ButtonIcon}" Padding="0,6" controls:IconElement.Geometry="{StaticResource DeleteFillCircleGeometry}" Foreground="{TemplateBinding BorderBrush}"/>
         </Grid>
@@ -230,7 +230,7 @@
                 <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>
             <TextBlock FontSize="12" Grid.ColumnSpan="2" Text="{TemplateBinding ErrorStr}" Name="TextBlockError" VerticalAlignment="Bottom" Margin="9,0,0,4" Foreground="{DynamicResource DangerBrush}" Grid.Column="1"/>
-            <Border x:Name="border" Grid.Column="1" Grid.ColumnSpan="2" CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True"/>
+            <Border Grid.Column="1" Grid.ColumnSpan="2" CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True"/>
             <PasswordBox Margin="-1,1,0,1" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" Padding="{TemplateBinding Padding}" Background="{TemplateBinding Background}" Foreground="{TemplateBinding Foreground}" Grid.Column="1" x:Name="PART_PasswordBox" PasswordChar="{TemplateBinding PasswordChar}" Style="{StaticResource PasswordBoxPlusInternalStyle}"/>
             <Button Grid.Column="2" Command="interactivity:ControlCommands.Clear" Margin="0,0,7,0" Visibility="Collapsed" Name="ButtonClear" Width="16" Style="{StaticResource ButtonIcon}" Padding="0,6" controls:IconElement.Geometry="{StaticResource DeleteFillCircleGeometry}" Foreground="{TemplateBinding BorderBrush}"/>
         </Grid>
diff --git a/HandyControl/Themes/Styles/Base/SearchBarBaseStyle.xaml b/HandyControl/Themes/Styles/Base/SearchBarBaseStyle.xaml
index 037e0484..f79bfddd 100644
--- a/HandyControl/Themes/Styles/Base/SearchBarBaseStyle.xaml
+++ b/HandyControl/Themes/Styles/Base/SearchBarBaseStyle.xaml
@@ -55,7 +55,7 @@
                         <ColumnDefinition Width="30"/>
                     </Grid.ColumnDefinitions>
                     <Button Command="interactivity:ControlCommands.Search" Style="{StaticResource ButtonIcon}" Padding="7" controls:IconElement.Geometry="{StaticResource SearchGeometry}" Grid.Column="1" Foreground="{Binding BorderBrush,ElementName=templateRoot}" Focusable="False" Grid.Row="0"/>
-                    <ContentControl Content="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}" Grid.Row="0" Grid.Column="0" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" TextElement.Foreground="{DynamicResource ThirdlyTextBrush}" Margin="{TemplateBinding Padding}" Focusable="False" IsHitTestVisible="False" Visibility="{TemplateBinding Text,Converter={StaticResource String2VisibilityReConverter}}" Padding="0"/>
+                    <TextBlock HorizontalAlignment="Stretch" Text="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}" Grid.Row="0" Grid.Column="0" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Style="{StaticResource TextBlockDefaultThiLight}" Margin="{TemplateBinding Padding}" Visibility="{TemplateBinding Text,Converter={StaticResource String2VisibilityReConverter}}"/>
                     <ScrollViewer Margin="-2,0" Grid.Row="0" Grid.Column="0" Padding="{TemplateBinding Padding}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" x:Name="PART_ContentHost" Focusable="false" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden"/>
                 </Grid>
             </Border>
@@ -90,7 +90,7 @@
                         <ColumnDefinition Width="30"/>
                     </Grid.ColumnDefinitions>
                     <Button Command="interactivity:ControlCommands.Search" Style="{StaticResource ButtonIcon}" Padding="7" controls:IconElement.Geometry="{StaticResource SearchGeometry}" Grid.Column="1" Foreground="{Binding BorderBrush,ElementName=templateRoot}" Focusable="False" Grid.Row="0"/>
-                    <ContentControl Content="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}" Grid.Row="0" Grid.Column="0" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" TextElement.Foreground="{DynamicResource ThirdlyTextBrush}" Margin="{TemplateBinding Padding}" Focusable="False" IsHitTestVisible="False" Visibility="{TemplateBinding Text,Converter={StaticResource String2VisibilityReConverter}}" Padding="0"/>
+                    <TextBlock HorizontalAlignment="Stretch" Text="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}" Grid.Row="0" Grid.Column="0" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Style="{StaticResource TextBlockDefaultThiLight}" Margin="{TemplateBinding Padding}" Visibility="{TemplateBinding Text,Converter={StaticResource String2VisibilityReConverter}}"/>
                     <ScrollViewer Margin="-2,0" Grid.Row="0" Grid.Column="0" Padding="{TemplateBinding Padding}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" x:Name="PART_ContentHost" Focusable="false" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden"/>
                 </Grid>
             </Border>
@@ -148,7 +148,7 @@
                     </Grid.ColumnDefinitions>
                     <Button Command="interactivity:ControlCommands.Clear" Visibility="Collapsed" Name="ButtonClear" Width="16" Grid.Column="1" Style="{StaticResource ButtonIcon}" Padding="0,6" controls:IconElement.Geometry="{StaticResource DeleteFillCircleGeometry}" Foreground="{Binding BorderBrush,ElementName=templateRoot}"/>
                     <Button Command="interactivity:ControlCommands.Search" Style="{StaticResource ButtonIcon}" Padding="2,7,7,7" controls:IconElement.Geometry="{StaticResource SearchGeometry}" Grid.Column="2" Foreground="{Binding BorderBrush,ElementName=templateRoot}" Focusable="False" Grid.Row="0"/>
-                    <ContentControl Content="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}" Grid.Row="0" Grid.Column="0" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" TextElement.Foreground="{DynamicResource ThirdlyTextBrush}" Margin="{TemplateBinding Padding}" Focusable="False" IsHitTestVisible="False" Visibility="{TemplateBinding Text,Converter={StaticResource String2VisibilityReConverter}}" Padding="0"/>
+                    <TextBlock HorizontalAlignment="Stretch" Text="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}" Grid.Row="0" Grid.Column="0" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Style="{StaticResource TextBlockDefaultThiLight}" Margin="{TemplateBinding Padding}" Visibility="{TemplateBinding Text,Converter={StaticResource String2VisibilityReConverter}}"/>
                     <ScrollViewer Margin="-2,0" Grid.Row="0" Grid.Column="0" Padding="{TemplateBinding Padding}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" x:Name="PART_ContentHost" Focusable="false" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden"/>
                 </Grid>
             </Border>
@@ -210,7 +210,7 @@
                     </Grid.ColumnDefinitions>
                     <Button Command="interactivity:ControlCommands.Clear" Visibility="Collapsed" Name="ButtonClear" Width="16" Grid.Column="1" Style="{StaticResource ButtonIcon}" Padding="0,6" controls:IconElement.Geometry="{StaticResource DeleteFillCircleGeometry}" Foreground="{Binding BorderBrush,ElementName=templateRoot}"/>
                     <Button Command="interactivity:ControlCommands.Search" Style="{StaticResource ButtonIcon}" Padding="2,7,7,7" controls:IconElement.Geometry="{StaticResource SearchGeometry}" Grid.Column="2" Foreground="{Binding BorderBrush,ElementName=templateRoot}" Focusable="False" Grid.Row="0"/>
-                    <ContentControl Content="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}" Grid.Row="0" Grid.Column="0" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" TextElement.Foreground="{DynamicResource ThirdlyTextBrush}" Margin="{TemplateBinding Padding}" Focusable="False" IsHitTestVisible="False" Visibility="{TemplateBinding Text,Converter={StaticResource String2VisibilityReConverter}}" Padding="0"/>
+                    <TextBlock HorizontalAlignment="Stretch" Text="{Binding Path=(controls:InfoElement.Placeholder),RelativeSource={RelativeSource TemplatedParent}}" Grid.Row="0" Grid.Column="0" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Style="{StaticResource TextBlockDefaultThiLight}" Margin="{TemplateBinding Padding}" Visibility="{TemplateBinding Text,Converter={StaticResource String2VisibilityReConverter}}"/>
                     <ScrollViewer Margin="-2,0" Grid.Row="0" Grid.Column="0" Padding="{TemplateBinding Padding}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" x:Name="PART_ContentHost" Focusable="false" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden"/>
                 </Grid>
             </Border>