completed the branch

src/Shared/HandyControlDemo_Shared/HandyControlDemo_Shared.projitems

@@ -283,6 +283,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)ViewModel\Controls\NotifyIconDemoViewModel.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ViewModel\Controls\PaginationDemoViewModel.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ViewModel\Controls\SearchBarDemoViewModel.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)ViewModel\Controls\SideMenuDemoViewModel.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ViewModel\Controls\StepBarDemoViewModel.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ViewModel\Controls\WindowDemoViewModel.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ViewModel\DemoViewModelBase!1.cs" />

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

@@ -2,11 +2,18 @@
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:controls="clr-namespace:HandyControl.Controls;assembly=HandyControl"
-             xmlns:interactivity="clr-namespace:HandyControl.Interactivity;assembly=HandyControl"
+             xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
+             xmlns:command="http://www.galasoft.ch/mvvmlight"
+             DataContext="{Binding SideMenuDemo,Source={StaticResource Locator}}"
              Background="{DynamicResource RegionBrush}">
 
-    <Grid>
-        <controls:SideMenu ExpandMode="ShowOne" BorderThickness="1" Width="200" Margin="32">
+    <controls:TransitioningContentControl>
+        <controls:SideMenu BorderThickness="1" Width="200" Margin="32">
+            <i:Interaction.Triggers>
+                <i:EventTrigger EventName="SelectionChanged">
+                    <command:EventToCommand Command="{Binding SwitchItemCmd}" PassEventArgsToCommand="True" />
+                </i:EventTrigger>
+            </i:Interaction.Triggers>
             <controls:SideMenuItem Header="Overview">
                 <controls:SideMenuItem.Icon>
                     <Image Source="/HandyControlDemo;component/Resources/Img/DevOps/DevOps-Overview.png" Width="24" Height="24"/>
@@ -143,6 +150,6 @@
                 </controls:SideMenuItem>
             </controls:SideMenuItem>
         </controls:SideMenu>
-    </Grid>
+    </controls:TransitioningContentControl>
 
 </UserControl>

src/Shared/HandyControlDemo_Shared/UserControl/Main/LeftMainContent.xaml

@@ -203,7 +203,7 @@
                             <Image Source="../../Resources/Img/LeftMainContent/DotLarge_16x.png"/>
                         </controls:EdgeElement.LeftContent>
                     </ListBoxItem>
-                    <ListBoxItem Style="{StaticResource ListBoxItemNew}" Tag="{x:Static data:MessageToken.GotoTopDemoCtl}" Content="{x:Static langs:Lang.GotoTop}">
+                    <ListBoxItem Tag="{x:Static data:MessageToken.GotoTopDemoCtl}" Content="{x:Static langs:Lang.GotoTop}">
                         <controls:EdgeElement.LeftContent>
                             <Image Source="../../Resources/Img/LeftMainContent/GoToTop_16x.png"/>
                         </controls:EdgeElement.LeftContent>

src/Shared/HandyControlDemo_Shared/ViewModel/Controls/SideMenuDemoViewModel.cs

@@ -0,0 +1,20 @@
+using System;
+using GalaSoft.MvvmLight;
+using HandyControl.Controls;
+using HandyControl.Data;
+#if netle40
+using GalaSoft.MvvmLight.Command;
+#else
+using GalaSoft.MvvmLight.CommandWpf;
+# endif
+
+namespace HandyControlDemo.ViewModel
+{
+    public class SideMenuDemoViewModel : ViewModelBase
+    {
+        public RelayCommand<FunctionEventArgs<object>> SwitchItemCmd => new Lazy<RelayCommand<FunctionEventArgs<object>>>(() =>
+            new RelayCommand<FunctionEventArgs<object>>(SwitchItem)).Value;
+
+        private void SwitchItem(FunctionEventArgs<object> info) => Growl.Info((info.Info as SideMenuItem)?.Header.ToString());
+    }
+}

src/Shared/HandyControlDemo_Shared/ViewModel/ViewModelLocator.cs

@@ -33,6 +33,7 @@ namespace HandyControlDemo.ViewModel
             SimpleIoc.Default.Register<NotifyIconDemoViewModel>();
             SimpleIoc.Default.Register<InteractiveDialogViewModel>();
             SimpleIoc.Default.Register<BadgeDemoViewModel>();
+            SimpleIoc.Default.Register<SideMenuDemoViewModel>();
         }
 
         public static ViewModelLocator Instance => new Lazy<ViewModelLocator>(() =>
@@ -71,6 +72,9 @@ namespace HandyControlDemo.ViewModel
         public InteractiveDialogViewModel InteractiveDialog => ServiceLocator.Current.GetInstance<InteractiveDialogViewModel>();
 
         public BadgeDemoViewModel BadgeDemo => ServiceLocator.Current.GetInstance<BadgeDemoViewModel>();
+
+        public SideMenuDemoViewModel SideMenuDemo => ServiceLocator.Current.GetInstance<SideMenuDemoViewModel>();
+
         #endregion
     }
 }