Restructuring use of custom notification

Author: shweaver-MSFT

Microsoft.Toolkit.Uwp.SampleApp/SamplePages/InAppNotification/InAppNotificationPage.xaml.cs

@@ -14,11 +14,10 @@ namespace Microsoft.Toolkit.Uwp.SampleApp.SamplePages
 {
     public sealed partial class InAppNotificationPage : Page, IXamlRenderListener
     {
-        private ControlTemplate _defaultInAppNotificationControlTemplate;
-        private ControlTemplate _customInAppNotificationControlTemplate;
         private InAppNotification _exampleInAppNotification;
         private InAppNotification _exampleCustomInAppNotification;
         private InAppNotification _exampleVSCodeInAppNotification;
+        private DataTemplate _inAppNotificationWithButtonsTemplate;
         private ResourceDictionary _resources;
 
         public bool IsRootGridActualWidthLargerThan700 { get; set; }
@@ -36,9 +35,7 @@ public void OnXamlRendered(FrameworkElement control)
             NotificationDuration = 0;
 
             _exampleInAppNotification = control.FindChild("ExampleInAppNotification") as InAppNotification;
-            _defaultInAppNotificationControlTemplate = _exampleInAppNotification?.Template;
             _exampleCustomInAppNotification = control.FindChild("ExampleCustomInAppNotification") as InAppNotification;
-            _customInAppNotificationControlTemplate = _exampleCustomInAppNotification?.Template;
             _exampleVSCodeInAppNotification = control.FindChild("ExampleVSCodeInAppNotification") as InAppNotification;
             _resources = control.Resources;
 
@@ -47,30 +44,37 @@ public void OnXamlRendered(FrameworkElement control)
             {
                 notificationDurationTextBox.TextChanged += NotificationDurationTextBox_TextChanged;
             }
+
+            object inAppNotificationWithButtonsTemplateResource = null;
+            bool? isTemplatePresent = _resources?.TryGetValue("InAppNotificationWithButtonsTemplate", out inAppNotificationWithButtonsTemplateResource);
+            if (isTemplatePresent == true && inAppNotificationWithButtonsTemplateResource is DataTemplate inAppNotificationWithButtonsTemplate)
+            {
+                _inAppNotificationWithButtonsTemplate = inAppNotificationWithButtonsTemplate;
+            }
         }
 
         private void Load()
         {
             SampleController.Current.RegisterNewCommand("Show notification with random text", (sender, args) =>
             {
-                _exampleVSCodeInAppNotification?.Dismiss();
-                SetDefaultControlTemplate();
+                _exampleVSCodeInAppNotification.Dismiss(true);
+                _exampleCustomInAppNotification.Dismiss(true);
                 _exampleInAppNotification?.Show(GetRandomText(), NotificationDuration);
             });
 
             SampleController.Current.RegisterNewCommand("Show notification with object", (sender, args) =>
             {
-                _exampleVSCodeInAppNotification?.Dismiss();
-                SetDefaultControlTemplate();
+                _exampleVSCodeInAppNotification.Dismiss(true);
+                _exampleCustomInAppNotification.Dismiss(true);
 
                 var random = new Random();
                 _exampleInAppNotification?.Show(new KeyValuePair<int, string>(random.Next(1, 10), GetRandomText()), NotificationDuration);
             });
 
             SampleController.Current.RegisterNewCommand("Show notification with buttons (without DataTemplate)", (sender, args) =>
             {
-                _exampleVSCodeInAppNotification?.Dismiss();
-                SetDefaultControlTemplate();
+                _exampleVSCodeInAppNotification.Dismiss(true);
+                _exampleCustomInAppNotification.Dismiss(true);
 
                 var grid = new Grid()
                 {
@@ -126,46 +130,24 @@ private void Load()
 
             SampleController.Current.RegisterNewCommand("Show notification with buttons (with DataTemplate)", (sender, args) =>
             {
-                _exampleVSCodeInAppNotification?.Dismiss();
-                SetCustomControlTemplate(); // Use the custom template without the Dismiss button. The DataTemplate will handle re-adding it.
-
-                object inAppNotificationWithButtonsTemplate = null;
-                bool? isTemplatePresent = _resources?.TryGetValue("InAppNotificationWithButtonsTemplate", out inAppNotificationWithButtonsTemplate);
-
-                if (isTemplatePresent == true && inAppNotificationWithButtonsTemplate is DataTemplate template)
-                {
-                    _exampleInAppNotification.Show(template, NotificationDuration);
-                }
-            });
-
-            SampleController.Current.RegisterNewCommand("Show notification with Drop Shadow (based on default template)", (sender, args) =>
-            {
-                _exampleVSCodeInAppNotification.Dismiss();
-                SetDefaultControlTemplate();
-
-                // Update control template
-                object inAppNotificationDropShadowControlTemplate = null;
-                bool? isTemplatePresent = _resources?.TryGetValue("InAppNotificationDropShadowControlTemplate", out inAppNotificationDropShadowControlTemplate);
-
-                if (isTemplatePresent == true && inAppNotificationDropShadowControlTemplate is ControlTemplate template)
-                {
-                    _exampleInAppNotification.Template = template;
-                }
-
-                _exampleInAppNotification.Show(GetRandomText(), NotificationDuration);
+                _exampleVSCodeInAppNotification.Dismiss(true);
+                _exampleInAppNotification.Dismiss(true);
+                _exampleCustomInAppNotification.Show(_inAppNotificationWithButtonsTemplate, NotificationDuration);
             });
 
             SampleController.Current.RegisterNewCommand("Show notification with Visual Studio Code template (info notification)", (sender, args) =>
             {
-                _exampleInAppNotification.Dismiss();
+                _exampleInAppNotification.Dismiss(true);
+                _exampleCustomInAppNotification.Dismiss(true);
                 _exampleVSCodeInAppNotification.Show(NotificationDuration);
             });
 
             SampleController.Current.RegisterNewCommand("Dismiss", (sender, args) =>
             {
                 // Dismiss all notifications (should not be replicated in production)
-                _exampleInAppNotification.Dismiss();
-                _exampleVSCodeInAppNotification.Dismiss();
+                _exampleInAppNotification.Dismiss(true);
+                _exampleCustomInAppNotification.Dismiss(true);
+                _exampleVSCodeInAppNotification.Dismiss(true);
             });
         }
 
@@ -182,18 +164,6 @@ private string GetRandomText()
             }
         }
 
-        private void SetDefaultControlTemplate()
-        {
-            // Update control template
-            _exampleInAppNotification.Template = _defaultInAppNotificationControlTemplate;
-        }
-
-        private void SetCustomControlTemplate()
-        {
-            // Update control template
-            _exampleInAppNotification.Template = _customInAppNotificationControlTemplate;
-        }
-
         private void NotificationDurationTextBox_TextChanged(object sender, TextChangedEventArgs e)
         {
             int newDuration;