updated DialogDemo

src/Shared/HandyControlDemo_Shared/UserControl/Basic/TextDialogWithTimer.xaml.cs

@@ -0,0 +1,24 @@
+using System;
+using System.Windows.Controls.Primitives;
+using HandyControl.Tools;
+
+namespace HandyControlDemo.UserControl
+{
+    public partial class TextDialogWithTimer
+    {
+        public TextDialogWithTimer()
+        {
+            InitializeComponent();
+
+            var animation = AnimationHelper.CreateAnimation(100, 5000);
+            animation.EasingFunction = null;
+            animation.Completed += Animation_Completed;
+            ProgressBarTimer.BeginAnimation(RangeBase.ValueProperty, animation);
+        }
+
+        private void Animation_Completed(object sender, EventArgs e)
+        {
+            ButtonClose.Command.Execute(null);
+        }
+    }
+}