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using System;

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.Github, 2954, "Cell becomes empty after adding a new one with context actions (TableView) ")]
	public class Issue2954 : TestContentPage // or TestMasterDetailPage, etc ...
	{
		TableSection _dataSection;
		TableView _tableView;
		int _count = 0;
		protected override void Init ()
		{
			_dataSection = new TableSection {
				new TextCell{ Text = "Cell1" },
				new TextCell{ Text = "Cell2", ContextActions = { new MenuItem{ Text = "Delete" } } },
				new TextCell{ Text = "Add new", Command = new Command (AddNew) }
			};

			_tableView = new TableView {
				Root = new TableRoot { 
					_dataSection
				}
			};

			Content = _tableView;
		}

		void AddNew (object parameters)
		{
			_count++;
			_dataSection.Insert (0, new TextCell { Text = "Fresh cell " + _count
						, ContextActions = { new MenuItem{ Text = "Delete" } } 
			});
			_tableView.Root = _tableView.Root; //HACK - force table reload
		}

		#if UITEST
		[Test]
		public void Issue2954Test ()
		{
			RunningApp.Screenshot ("I am at Issue 2954");
			RunningApp.WaitForElement (q => q.Marked ("Cell2"));
			RunningApp.Screenshot ("I see the Cell2");
			RunningApp.Tap(c => c.Marked("Add new"));
			RunningApp.WaitForElement (q => q.Marked ("Cell2"));
			RunningApp.Screenshot ("I still see the Cell2");
		}
#endif
	}
}