Improve Windows DevFlow dialog automation

platforms/Windows.WPF/samples/Windows.WPF.Sample/Pages/AlertsPage.cs

@@ -16,13 +16,14 @@ public AlertsPage()
 
 		var resultLabel = new Label
 		{
+			AutomationId = "WpfDialogResultLabel",
 			Text = "Result: (none yet)",
 			FontSize = 14,
 			TextColor = Colors.DodgerBlue,
 		};
 
 		// Simple alert (OK only)
-		var simpleAlertBtn = new Button { Text = "Simple Alert (OK)" };
+		var simpleAlertBtn = new Button { Text = "Simple Alert (OK)", AutomationId = "WpfSimpleAlertBtn" };
 		simpleAlertBtn.Clicked += async (s, e) =>
 		{
 			resultLabel.Text = "Result: Alert requested...";
@@ -31,15 +32,15 @@ public AlertsPage()
 		};
 
 		// Confirm alert (Accept / Cancel)
-		var confirmAlertBtn = new Button { Text = "Confirm Alert (Yes / No)" };
+		var confirmAlertBtn = new Button { Text = "Confirm Alert (Yes / No)", AutomationId = "WpfConfirmAlertBtn" };
 		confirmAlertBtn.Clicked += async (s, e) =>
 		{
 			bool answer = await ConnectedPage.DisplayAlertAsync("Confirm", "Do you want to proceed?", "Yes", "No");
 			resultLabel.Text = $"Result: Confirmed = {answer}";
 		};
 
 		// Action sheet
-		var actionSheetBtn = new Button { Text = "Action Sheet" };
+		var actionSheetBtn = new Button { Text = "Action Sheet", AutomationId = "WpfActionSheetBtn" };
 		actionSheetBtn.Clicked += async (s, e) =>
 		{
 			string action = await ConnectedPage.DisplayActionSheetAsync(
@@ -51,7 +52,7 @@ public AlertsPage()
 		};
 
 		// Action sheet without destruction
-		var actionSheet2Btn = new Button { Text = "Action Sheet (no destructive)" };
+		var actionSheet2Btn = new Button { Text = "Action Sheet (no destructive)", AutomationId = "WpfActionSheetNoDestructiveBtn" };
 		actionSheet2Btn.Clicked += async (s, e) =>
 		{
 			string action = await ConnectedPage.DisplayActionSheetAsync(
@@ -63,15 +64,15 @@ public AlertsPage()
 		};
 
 		// Prompt
-		var promptBtn = new Button { Text = "Text Prompt" };
+		var promptBtn = new Button { Text = "Text Prompt", AutomationId = "WpfPromptBtn" };
 		promptBtn.Clicked += async (s, e) =>
 		{
 			string name = await ConnectedPage.DisplayPromptAsync("Your Name", "What should we call you?", placeholder: "Enter name...");
 			resultLabel.Text = name != null ? $"Result: Name = {name}" : "Result: Prompt cancelled";
 		};
 
 		// Prompt with initial value
-		var promptInitBtn = new Button { Text = "Prompt (with initial value)" };
+		var promptInitBtn = new Button { Text = "Prompt (with initial value)", AutomationId = "WpfPromptInitialValueBtn" };
 		promptInitBtn.Clicked += async (s, e) =>
 		{
 			string value = await ConnectedPage.DisplayPromptAsync("Edit Value", "Modify the text below:", initialValue: "Hello World");