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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.Issues
{
[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
}
}
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