using System;
using System.Collections.Generic;

using Xamarin.Forms.CustomAttributes;

using Xamarin.Forms;
using System.ComponentModel;
using Xamarin.Forms.Internals;

namespace Xamarin.Forms.Controls
{
#if APP
	[Preserve (AllMembers = true)]
	[Issue (IssueTracker.Bugzilla, 31967, "Grid Layout on Bound RowDefinition")]
	public partial class Bugzilla31967 : ContentPage
	{
		public Bugzilla31967 ()
		{
			InitializeComponent ();
			BindingContext = new Bugzilla31967Vm ();
		}

		public class Bugzilla31967Vm: INotifyPropertyChanged {
			public Command Fire {
				get { return new Command (() => ToolbarHeight = 50); }
			}

			GridLength _toolbarHeight;
			public GridLength ToolbarHeight {
				get { return _toolbarHeight; }
				set {
					_toolbarHeight = value;
					OnPropertyChanged ("ToolbarHeight");
				}
			}

			protected void OnPropertyChanged (string propertyName)
			{
				var handler = PropertyChanged;
				if (handler != null)
					handler (this, new PropertyChangedEventArgs (propertyName));
			}

			public event PropertyChangedEventHandler PropertyChanged;
		}
	}
#endif
}