1 files changed, 55 insertions, 0 deletions
diff --git a/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla44129.cs b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla44129.cs
new file mode 100644
index 00000000..e1755ef0
--- /dev/null
+++ b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla44129.cs
@@ -0,0 +1,55 @@
+using System;
+using System.Collections.ObjectModel;
+using Xamarin.Forms.CustomAttributes;
+using Xamarin.Forms.Internals;
+
+#if UITEST
+using Xamarin.UITest;
+using NUnit.Framework;
+#endif
+
+namespace Xamarin.Forms.Controls
+{
+	[Preserve(AllMembers = true)]
+	[Issue(IssueTracker.Bugzilla, 44129, "Crash when adding tabbed page after removing all pages using DataTemplates")]
+	public class Bugzilla44129 : TestTabbedPage // or TestMasterDetailPage, etc ...
+	{
+		protected override void Init()
+		{
+			// Initialize ui here instead of ctor
+			var viewModels = new ObservableCollection<string>();
+			viewModels.Add("First");
+			viewModels.Add("Second");
+			var template = new DataTemplate(() =>
+			{
+				ContentPage page = new ContentPage();
+				var crashMe = new Button { Text = "Crash Me" };
+				crashMe.Clicked += (sender, args) =>
+				{
+					viewModels.Clear();
+					viewModels.Add("Third");
+				};
+
+				page.Content = crashMe;
+				page.SetBinding(ContentPage.TitleProperty, ".");
+
+				return page;
+			});
+
+			ItemTemplate = template;
+			ItemsSource = viewModels;
+		}
+
+#if UITEST
+		[Test]
+		public void Issue44129Test ()
+		{
+			RunningApp.Screenshot ("I am at Issue 1");
+			RunningApp.WaitForElement (q => q.Marked ("First"));
+			RunningApp.Screenshot ("I see the Label");
+			RunningApp.Tap(q => q.Marked("Second"));
+			RunningApp.Tap(q => q.Marked("Crash Me"));
+		}
+#endif
+	}
+}
+\ No newline at end of file