init branch

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

@@ -0,0 +1,7 @@
+<UserControl x:Class="HandyControlDemo.UserControl.RangeSliderDemoCtl"
+             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="{DynamicResource RegionBrush}">
+    
+</UserControl>

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

@@ -0,0 +1,10 @@
+namespace HandyControlDemo.UserControl
+{
+    public partial class RangeSliderDemoCtl
+    {
+        public RangeSliderDemoCtl()
+        {
+            InitializeComponent();
+        }
+    }
+}

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

@@ -335,7 +335,7 @@
                                 <Image Source="../../Resources/Img/LeftMainContent/LinearCarousel_16x.png"/>
                             </hc:EdgeElement.LeftContent>
                         </ListBoxItem>
-                        <ListBoxItem Style="{StaticResource ListBoxItemNew}" Tag="{x:Static data:MessageToken.ProgressBarDemoCtl}" Content="{x:Static langs:Lang.ProgressBar}">
+                        <ListBoxItem Tag="{x:Static data:MessageToken.ProgressBarDemoCtl}" Content="{x:Static langs:Lang.ProgressBar}">
                             <hc:EdgeElement.LeftContent>
                                 <Image Source="../../Resources/Img/LeftMainContent/ProgressBar_16x.png"/>
                             </hc:EdgeElement.LeftContent>
@@ -380,6 +380,11 @@
                                 <Image Source="../../Resources/Img/LeftMainContent/HoverMenu_16x.png"/>
                             </hc:EdgeElement.LeftContent>
                         </ListBoxItem>
+                        <ListBoxItem Style="{StaticResource ListBoxItemNew}" Tag="{x:Static data:MessageToken.RangeSliderDemoCtl}" Content="{x:Static langs:Lang.RangeSlider}">
+                            <hc:EdgeElement.LeftContent>
+                                <Image Source="../../Resources/Img/LeftMainContent/brackets_Square_16xLG.png"/>
+                            </hc:EdgeElement.LeftContent>
+                        </ListBoxItem>
                         <ListBoxItem Tag="{x:Static data:MessageToken.TimeBarDemoCtl}" Content="{x:Static langs:Lang.TimeBar}">
                             <hc:EdgeElement.LeftContent>
                                 <Image Source="../../Resources/Img/LeftMainContent/Timeline_16x.png"/>