support for dynamic switching languages

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

@@ -3,6 +3,7 @@
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:hc="https://handyorg.github.io/handycontrol"
              xmlns:langs="clr-namespace:HandyControlDemo.Properties.Langs"
+             xmlns:ex="clr-namespace:HandyControlDemo.Tools.Extension"
              DataContext="{Binding CardDemo,Source={StaticResource Locator}}"
              Background="{DynamicResource RegionBrush}">
     <hc:TransitioningContentControl>
@@ -12,8 +13,8 @@
                 <RowDefinition/>
             </Grid.RowDefinitions>
             <hc:ButtonGroup Margin="0,0,0,16">
-                <Button Command="{Binding AddItemCmd}" Content="{x:Static langs:Lang.AddItem}"/>
-                <Button Command="{Binding RemoveItemCmd}" Content="{x:Static langs:Lang.RemoveItem}"/>
+                <Button Command="{Binding AddItemCmd}" Content="{ex:Lang Key={x:Static langs:LangKeys.AddItem}}"/>
+                <Button Command="{Binding RemoveItemCmd}" Content="{ex:Lang Key={x:Static langs:LangKeys.RemoveItem}}"/>
             </hc:ButtonGroup>
             <Border Padding="0" Grid.Row="1" Style="{StaticResource BorderRegion}">
                 <ListBox Background="Transparent" BorderThickness="0" Style="{StaticResource ListBoxCustom}" ItemsSource="{Binding DataList}">