Fix Surface Dial Sample Loading

Was trying to bind to non-DependencyProperties

Author: michael-hawker

Microsoft.Toolkit.Uwp.SampleApp/Pages/SampleController.xaml.cs

@@ -337,6 +337,8 @@ protected override void OnNavigatedFrom(NavigationEventArgs e)
                 {
                     method.Invoke(SamplePage, new object[] { e });
                 }
+
+                SamplePage = null;
             }
 
             XamlCodeEditor = null;

Microsoft.Toolkit.Uwp.SampleApp/SamplePages/SurfaceDialTextbox/SurfaceDialTextboxCode.bind

@@ -16,14 +16,14 @@
               Width="250">
       <ui:TextBoxExtensions.SurfaceDialOptions>
         <ui:SurfaceDialOptions
-            StepValue="@[StepValue:DoubleSlider:1:0.1-10]"
-            ForceMenuItem="@[ForceMenuItem:Bool:true]"
-            EnableHapticFeedback="@[EnableHapticFeedback:Bool:true]"
-            EnableMinMaxValue="@[EnableMinMaxValue:Bool:true]"
-            MinValue="@[MinValue:DoubleSlider:0:0-100]"
-            MaxValue="@[MaxValue:DoubleSlider:100:0-100]"
-            Icon="@[Icon:Enum:RadialControllerMenuKnownIcon.Ruler]"
-            EnableTapToNextControl="@[EnableTapToNextControl:Bool:true]"/>
+            StepValue="1"
+            ForceMenuItem="True"
+            EnableHapticFeedback="True"
+            EnableMinMaxValue="True"
+            MinValue="0"
+            MaxValue="100"
+            Icon="Ruler"
+            EnableTapToNextControl="True"/>
       </ui:TextBoxExtensions.SurfaceDialOptions>
     </TextBox>
   </StackPanel>

Microsoft.Toolkit.Uwp.UI/Extensions/TextBox/SurfaceDialOptions.cs

@@ -26,7 +26,7 @@ public sealed class SurfaceDialOptions : DependencyObject
 
         /// <summary>
         /// Gets or sets the default icon of the menu item that gets added.
-        /// A user will most likely not see this.
+        /// This will be visible if a user opens their Surface Dial menu by long-pressing the device.
         /// Defaults to <see cref="RadialControllerMenuKnownIcon.Ruler"/>.
         /// </summary>
         public RadialControllerMenuKnownIcon Icon { get; set; } = RadialControllerMenuKnownIcon.Ruler;