refactor: massive refactor input elements, step 1/3

src/Shared/HandyControlDemo_Shared/UserControl/Controls/CheckComboBoxDemoCtl.xaml

@@ -1,7 +1,7 @@
 <UserControl x:Class="HandyControlDemo.UserControl.CheckComboBoxDemoCtl"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-             DataContext="{Binding ComboBoxDemo,Source={StaticResource Locator}}"
+             DataContext="{Binding InputElementDemo,Source={StaticResource Locator}}"
              xmlns:langs="clr-namespace:HandyControlDemo.Properties.Langs"
              xmlns:ex="clr-namespace:HandyControlDemo.Tools.Extension"
              xmlns:hc="https://handyorg.github.io/handycontrol"

src/Shared/HandyControlDemo_Shared/UserControl/Controls/ComboBoxDemoCtl.xaml

@@ -1,7 +1,7 @@
 <UserControl x:Class="HandyControlDemo.UserControl.ComboBoxDemoCtl"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-             DataContext="{Binding ComboBoxDemo,Source={StaticResource Locator}}"
+             DataContext="{Binding InputElementDemo,Source={StaticResource Locator}}"
              xmlns:hc="https://handyorg.github.io/handycontrol"
              xmlns:langs="clr-namespace:HandyControlDemo.Properties.Langs"
              xmlns:ex="clr-namespace:HandyControlDemo.Tools.Extension"

src/Shared/HandyControlDemo_Shared/UserControl/Controls/NumericUpDownDemoCtl.xaml

@@ -4,9 +4,11 @@
              xmlns:hc="https://handyorg.github.io/handycontrol"
              xmlns:langs="clr-namespace:HandyControlDemo.Properties.Langs"
              xmlns:ex="clr-namespace:HandyControlDemo.Tools.Extension"
-             Background="{DynamicResource RegionBrush}">
+             xmlns:tools="clr-namespace:HandyControlDemo.Tools"
+             Background="{DynamicResource RegionBrush}"
+             DataContext="{Binding InputElementDemo, Source={StaticResource Locator}}">
     <hc:TransitioningContentControl>
-        <StackPanel Margin="32" Orientation="Horizontal">
+        <hc:UniformSpacingPanel Spacing="32" Margin="32" ChildWrapping="Wrap">
             <StackPanel>
                 <hc:NumericUpDown Maximum="100"/>
                 <hc:NumericUpDown Margin="0,32,0,0" IsEnabled="False"/>
@@ -17,16 +19,52 @@
                 <hc:NumericUpDown Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource NumericUpDownExtend}" Margin="0,32,0,0"/>
                 <hc:NumericUpDown ValueFormat="N2" Maximum="100000" Value="10000" Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource NumericUpDownExtend}" hc:InfoElement.Necessary="True" Margin="0,32,0,0"/>
             </StackPanel>
-            <StackPanel Margin="32,0,0,0">
-                <hc:NumericUpDown Name="NumericUpDownCustomVerify" ShowClearButton="True" Style="{StaticResource NumericUpDownPlus}"/>
+            <StackPanel>
+                <hc:NumericUpDown hc:InfoElement.ShowClearButton="True" Style="{StaticResource NumericUpDownPlus}">
+                    <hc:NumericUpDown.Value>
+                        <Binding Path="DoubleValue1" UpdateSourceTrigger="PropertyChanged">
+                            <Binding.ValidationRules>
+                                <tools:NumericUpDownDemoRule/>
+                            </Binding.ValidationRules>
+                        </Binding>
+                    </hc:NumericUpDown.Value>
+                </hc:NumericUpDown>
                 <hc:NumericUpDown Margin="0,32,0,0" IsEnabled="False" Style="{StaticResource NumericUpDownPlus}"/>
                 <hc:NumericUpDown Margin="0,32,0,0" IsReadOnly="True" Style="{StaticResource NumericUpDownPlus}"/>
 
-                <hc:NumericUpDown ShowClearButton="True" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" Style="{StaticResource NumericUpDownPlus}"/>
+                <hc:NumericUpDown hc:InfoElement.ShowClearButton="True" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" Style="{StaticResource NumericUpDownPlus}"/>
                 <hc:NumericUpDown hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" hc:InfoElement.Necessary="True" Style="{StaticResource NumericUpDownPlus}"/>
                 <hc:NumericUpDown Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource NumericUpDownPlus}" Margin="0,32,0,0"/>
-                <hc:NumericUpDown DecimalPlaces="2" ShowClearButton="True" Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource NumericUpDownPlus}" hc:InfoElement.Necessary="True" Margin="0,32,0,0"/>
+                <hc:NumericUpDown DecimalPlaces="2" hc:InfoElement.ShowClearButton="True" Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource NumericUpDownPlus}" hc:InfoElement.Necessary="True" Margin="0,32,0,0"/>
             </StackPanel>
-        </StackPanel>
+            <StackPanel>
+                <hc:NumericUpDown Maximum="100" Style="{StaticResource NumericUpDown.Small}"/>
+                <hc:NumericUpDown Margin="0,32,0,0" IsEnabled="False" Style="{StaticResource NumericUpDown.Small}"/>
+                <hc:NumericUpDown Margin="0,32,0,0" IsReadOnly="True" Style="{StaticResource NumericUpDown.Small}"/>
+
+                <hc:NumericUpDown hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" Style="{StaticResource NumericUpDownExtend.Small}"/>
+                <hc:NumericUpDown hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" hc:InfoElement.Necessary="True" Style="{StaticResource NumericUpDownExtend.Small}"/>
+                <hc:NumericUpDown Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource NumericUpDownExtend.Small}" Margin="0,32,0,0"/>
+                <hc:NumericUpDown ValueFormat="N2" Maximum="100000" Value="10000" Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource NumericUpDownExtend.Small}" hc:InfoElement.Necessary="True" Margin="0,32,0,0"/>
+            </StackPanel>
+            <StackPanel>
+                <hc:NumericUpDown hc:InfoElement.ShowClearButton="True" Style="{StaticResource NumericUpDownPlus.Small}">
+                    <hc:NumericUpDown.Value>
+                        <Binding Path="DoubleValue2" UpdateSourceTrigger="PropertyChanged">
+                            <Binding.ValidationRules>
+                                <tools:NumericUpDownDemoRule/>
+                            </Binding.ValidationRules>
+                        </Binding>
+                    </hc:NumericUpDown.Value>
+                </hc:NumericUpDown>
+                <hc:NumericUpDown Margin="0,32,0,0" IsEnabled="False" Style="{StaticResource NumericUpDownPlus.Small}"/>
+                <hc:NumericUpDown Margin="0,32,0,0" IsReadOnly="True" Style="{StaticResource NumericUpDownPlus.Small}"/>
+
+                <hc:NumericUpDown hc:InfoElement.ShowClearButton="True" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" Style="{StaticResource NumericUpDownPlus.Small}"/>
+                <hc:NumericUpDown hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" hc:InfoElement.Necessary="True" Style="{StaticResource NumericUpDownPlus.Small}"/>
+                <hc:NumericUpDown Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource NumericUpDownPlus.Small}" Margin="0,32,0,0"/>
+                <hc:NumericUpDown DecimalPlaces="2" hc:InfoElement.ShowClearButton="True" Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource NumericUpDownPlus.Small}" hc:InfoElement.Necessary="True" Margin="0,32,0,0"/>
+            </StackPanel>
+        </hc:UniformSpacingPanel>
     </hc:TransitioningContentControl>
 </UserControl>

src/Shared/HandyControlDemo_Shared/UserControl/Controls/NumericUpDownDemoCtl.xaml.cs

@@ -1,19 +1,10 @@
-using HandyControl.Data;
-
-
-namespace HandyControlDemo.UserControl
+namespace HandyControlDemo.UserControl
 {
     public partial class NumericUpDownDemoCtl
     {
         public NumericUpDownDemoCtl()
         {
             InitializeComponent();
-
-            NumericUpDownCustomVerify.VerifyFunc = str => double.TryParse(str, out var v)
-                ? v % 2 < 1e-06
-                    ? OperationResult.Failed(Properties.Langs.Lang.Error)
-                    : OperationResult.Success()
-                : OperationResult.Failed(Properties.Langs.Lang.Error);
         }
     }
 }

src/Shared/HandyControlDemo_Shared/UserControl/Controls/SearchBarDemoCtl.xaml

@@ -4,10 +4,10 @@
              xmlns:hc="https://handyorg.github.io/handycontrol"
              xmlns:langs="clr-namespace:HandyControlDemo.Properties.Langs"
              xmlns:ex="clr-namespace:HandyControlDemo.Tools.Extension"
-             DataContext="{Binding SearchBarDemo,Source={StaticResource Locator}}"
+             DataContext="{Binding InputElementDemo, Source={StaticResource Locator}}"
              Background="{DynamicResource RegionBrush}">
     <hc:TransitioningContentControl>
-        <StackPanel Margin="32" Orientation="Horizontal">
+        <hc:UniformSpacingPanel Spacing="32" Margin="32" ChildWrapping="Wrap">
             <StackPanel>
                 <hc:SearchBar Command="{Binding SearchCmd}" CommandParameter="{Binding Text,RelativeSource={RelativeSource Self}}"/>
                 <hc:SearchBar Margin="0,32,0,0" IsEnabled="False"/>
@@ -17,15 +17,49 @@
                 <hc:SearchBar Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource SearchBarExtend}" Margin="0,32,0,0"/>
                 <hc:SearchBar Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource SearchBarExtend}" hc:InfoElement.Necessary="True" Margin="0,32,0,0"/>
             </StackPanel>
-            <StackPanel Margin="32,0,0,0">
-                <hc:SearchBar Name="SearchBarCustomVerify" ShowClearButton="True" Style="{StaticResource SearchBarPlus}"/>
+            <StackPanel>
+                <hc:SearchBar hc:InfoElement.ShowClearButton="True" Style="{StaticResource SearchBarPlus}"/>
                 <hc:SearchBar Margin="0,32,0,0" IsEnabled="False" Style="{StaticResource SearchBarPlus}"/>
 
-                <hc:SearchBar ShowClearButton="True" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" Style="{StaticResource SearchBarPlus}"/>
-                <hc:SearchBar TextType="Mail" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterEmail}}" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" hc:InfoElement.Necessary="True" Style="{StaticResource SearchBarPlus}"/>
+                <hc:SearchBar hc:InfoElement.ShowClearButton="True" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" Style="{StaticResource SearchBarPlus}"/>
+                <hc:SearchBar hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterEmail}}" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" hc:InfoElement.Necessary="True" Style="{StaticResource SearchBarPlus}">
+                    <hc:SearchBar.Text>
+                        <Binding Path="Email1" UpdateSourceTrigger="PropertyChanged">
+                            <Binding.ValidationRules>
+                                <hc:RegexRule Type="Mail"/>
+                            </Binding.ValidationRules>
+                        </Binding>
+                    </hc:SearchBar.Text>
+                </hc:SearchBar>
                 <hc:SearchBar Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource SearchBarPlus}" Margin="0,32,0,0"/>
-                <hc:SearchBar ShowClearButton="True" Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource SearchBarPlus}" hc:InfoElement.Necessary="True" Margin="0,32,0,0"/>
+                <hc:SearchBar hc:InfoElement.ShowClearButton="True" Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource SearchBarPlus}" hc:InfoElement.Necessary="True" Margin="0,32,0,0"/>
             </StackPanel>
-        </StackPanel>
+            <StackPanel>
+                <hc:SearchBar Command="{Binding SearchCmd}" CommandParameter="{Binding Text,RelativeSource={RelativeSource Self}}" Style="{StaticResource SearchBar.Small}"/>
+                <hc:SearchBar Margin="0,32,0,0" IsEnabled="False" Style="{StaticResource SearchBar.Small}"/>
+
+                <hc:SearchBar hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" Style="{StaticResource SearchBarExtend.Small}"/>
+                <hc:SearchBar hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" hc:InfoElement.Necessary="True" Style="{StaticResource SearchBarExtend.Small}"/>
+                <hc:SearchBar Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource SearchBarExtend.Small}" Margin="0,32,0,0"/>
+                <hc:SearchBar Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource SearchBarExtend.Small}" hc:InfoElement.Necessary="True" Margin="0,32,0,0"/>
+            </StackPanel>
+            <StackPanel>
+                <hc:SearchBar hc:InfoElement.ShowClearButton="True" Style="{StaticResource SearchBarPlus.Small}"/>
+                <hc:SearchBar Margin="0,32,0,0" IsEnabled="False" Style="{StaticResource SearchBarPlus.Small}"/>
+
+                <hc:SearchBar hc:InfoElement.ShowClearButton="True" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" Style="{StaticResource SearchBarPlus.Small}"/>
+                <hc:SearchBar hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterEmail}}" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" hc:InfoElement.Necessary="True" Style="{StaticResource SearchBarPlus.Small}">
+                    <hc:SearchBar.Text>
+                        <Binding Path="Email1" UpdateSourceTrigger="PropertyChanged">
+                            <Binding.ValidationRules>
+                                <hc:RegexRule Type="Mail"/>
+                            </Binding.ValidationRules>
+                        </Binding>
+                    </hc:SearchBar.Text>
+                </hc:SearchBar>
+                <hc:SearchBar Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource SearchBarPlus.Small}" Margin="0,32,0,0"/>
+                <hc:SearchBar hc:InfoElement.ShowClearButton="True" Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Style="{StaticResource SearchBarPlus.Small}" hc:InfoElement.Necessary="True" Margin="0,32,0,0"/>
+            </StackPanel>
+        </hc:UniformSpacingPanel>
     </hc:TransitioningContentControl>
 </UserControl>

src/Shared/HandyControlDemo_Shared/UserControl/Controls/TextBoxDemoCtl.xaml

@@ -4,26 +4,43 @@
              Background="{DynamicResource RegionBrush}"
              xmlns:langs="clr-namespace:HandyControlDemo.Properties.Langs"
              xmlns:ex="clr-namespace:HandyControlDemo.Tools.Extension"
-             xmlns:hc="https://handyorg.github.io/handycontrol">
+             xmlns:hc="https://handyorg.github.io/handycontrol"
+             DataContext="{Binding InputElementDemo, Source={StaticResource Locator}}">
     <hc:TransitioningContentControl>
         <hc:UniformSpacingPanel Spacing="32" Margin="32" ChildWrapping="Wrap">
             <StackPanel>
-                <hc:TextBox ShowClearButton="True" Text="{ex:Lang Key={x:Static langs:LangKeys.ContentDemoStr}}"/>
+                <hc:TextBox hc:InfoElement.ShowClearButton="True" Text="{ex:Lang Key={x:Static langs:LangKeys.ContentDemoStr}}"/>
                 <hc:TextBox Text="{ex:Lang Key={x:Static langs:LangKeys.ContentDemoStr}}" Margin="0,16,0,0" IsEnabled="False"/>
 
-                <hc:TextBox ShowClearButton="True" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" Text="{ex:Lang Key={x:Static langs:LangKeys.ContentDemoStr}}"/>
-                <hc:TextBox TextType="Mail" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterEmail}}" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr2}}" hc:InfoElement.Necessary="True" Margin="0,16,0,0"/>
+                <hc:TextBox hc:InfoElement.ShowClearButton="True" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" Text="{ex:Lang Key={x:Static langs:LangKeys.ContentDemoStr}}"/>
+                <hc:TextBox hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterEmail}}" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr2}}" hc:InfoElement.Necessary="True" Margin="0,16,0,0">
+                    <hc:TextBox.Text>
+                        <Binding Path="Email1" UpdateSourceTrigger="PropertyChanged">
+                            <Binding.ValidationRules>
+                                <hc:RegexRule Type="Mail"/>
+                            </Binding.ValidationRules>
+                        </Binding>
+                    </hc:TextBox.Text>
+                </hc:TextBox>
                 <hc:TextBox Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Margin="0,32,0,0" Text="{ex:Lang Key={x:Static langs:LangKeys.ContentDemoStr}}"/>
-                <hc:TextBox ShowClearButton="True" Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" hc:InfoElement.Necessary="True" Margin="0,16,0,0"/>
+                <hc:TextBox hc:InfoElement.ShowClearButton="True" Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" hc:InfoElement.Necessary="True" Margin="0,16,0,0"/>
             </StackPanel>
             <StackPanel>
-                <hc:TextBox ShowClearButton="True" Text="{ex:Lang Key={x:Static langs:LangKeys.ContentDemoStr}}" Style="{StaticResource TextBoxPlus.Small}"/>
+                <hc:TextBox hc:InfoElement.ShowClearButton="True" Text="{ex:Lang Key={x:Static langs:LangKeys.ContentDemoStr}}" Style="{StaticResource TextBoxPlus.Small}"/>
                 <hc:TextBox Text="{ex:Lang Key={x:Static langs:LangKeys.ContentDemoStr}}" Margin="0,16,0,0" IsEnabled="False" Style="{StaticResource TextBoxPlus.Small}"/>
 
-                <hc:TextBox ShowClearButton="True" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" Text="{ex:Lang Key={x:Static langs:LangKeys.ContentDemoStr}}" Style="{StaticResource TextBoxPlus.Small}"/>
-                <hc:TextBox TextType="Mail" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterEmail}}" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr2}}" hc:InfoElement.Necessary="True" Margin="0,16,0,0" Style="{StaticResource TextBoxPlus.Small}"/>
+                <hc:TextBox hc:InfoElement.ShowClearButton="True" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" Text="{ex:Lang Key={x:Static langs:LangKeys.ContentDemoStr}}" Style="{StaticResource TextBoxPlus.Small}"/>
+                <hc:TextBox hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterEmail}}" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr2}}" hc:InfoElement.Necessary="True" Margin="0,16,0,0" Style="{StaticResource TextBoxPlus.Small}">
+                    <hc:TextBox.Text>
+                        <Binding Path="Email2" UpdateSourceTrigger="PropertyChanged">
+                            <Binding.ValidationRules>
+                                <hc:RegexRule Type="Mail"/>
+                            </Binding.ValidationRules>
+                        </Binding>
+                    </hc:TextBox.Text>
+                </hc:TextBox>
                 <hc:TextBox Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Margin="0,32,0,0" Text="{ex:Lang Key={x:Static langs:LangKeys.ContentDemoStr}}" Style="{StaticResource TextBoxPlus.Small}"/>
-                <hc:TextBox ShowClearButton="True" Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" hc:InfoElement.Necessary="True" Margin="0,16,0,0" Style="{StaticResource TextBoxPlus.Small}"/>
+                <hc:TextBox hc:InfoElement.ShowClearButton="True" Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" hc:InfoElement.Necessary="True" Margin="0,16,0,0" Style="{StaticResource TextBoxPlus.Small}"/>
             </StackPanel>
         </hc:UniformSpacingPanel>
     </hc:TransitioningContentControl>