1 files changed, 115 insertions, 0 deletions
diff --git a/Xamarin.Forms.Controls/ControlGalleryPages/ListRefresh.cs b/Xamarin.Forms.Controls/ControlGalleryPages/ListRefresh.cs
new file mode 100644
index 00000000..28afd7be
--- /dev/null
+++ b/Xamarin.Forms.Controls/ControlGalleryPages/ListRefresh.cs
@@ -0,0 +1,115 @@
+using System;
+using Xamarin.Forms;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+
+namespace Xamarin.Forms.Controls
+{
+	public class ListRefresh : ContentPage
+	{
+		public ListRefresh ()
+		{
+			var refreshingCount = 0;
+
+			var grid = new Grid ();
+			var fooViewModel = new FooViewModel ();
+			var lv = new ListView {BindingContext = fooViewModel, IsGroupingEnabled = true, GroupDisplayBinding = new Binding ("Name"), IsPullToRefreshEnabled = false};
+
+			var stack = new StackLayout ();
+			var btn = new Button { Text = string.Format ("IsRefreshing {0}", lv.IsRefreshing) };
+			btn.Command = new Command (s => {
+				lv.IsRefreshing = !lv.IsRefreshing;
+				btn.Text = string.Format("IsRefreshing {0}",lv.IsRefreshing);
+			});
+
+			var btn4 = new Button { Text = "BeginRefresh", Command = new Command (s => {
+				lv.BeginRefresh();
+				btn.Text = string.Format("IsRefreshing {0}",lv.IsRefreshing);
+			}) };
+			var btn1 = new Button { Text = "EndRefresh", Command = new Command (s => {
+				lv.EndRefresh();
+				btn.Text = string.Format("IsRefreshing {0}",lv.IsRefreshing);
+			}) };
+
+			var btn2 = new Button { Text = string.Format ("Pull {0}", lv.IsPullToRefreshEnabled) };
+			btn2.Command = new Command (s => {
+				lv.IsPullToRefreshEnabled = !lv.IsPullToRefreshEnabled;
+				btn2.Text = string.Format("Pull {0}",lv.IsPullToRefreshEnabled);
+			});
+
+			var btn3 = new Button { Text = string.Format("CanExecute {0}",fooViewModel.CanExecute) };
+			btn3.Command = new Command (s => {
+				fooViewModel.CanExecute = !fooViewModel.CanExecute;
+				btn3.Text = string.Format("CanExecute {0}",fooViewModel.CanExecute);
+			});
+		
+			var lbl = new Label { Text = string.Format ("Refreshing {0}", refreshingCount) };
+			lv.Refreshing += (object sender, EventArgs e) => {
+				refreshingCount++;
+				lbl.Text = string.Format ("Refreshing {0}", refreshingCount);
+			};
+
+			stack.Children.Add (btn);
+			stack.Children.Add (btn4);
+			stack.Children.Add (btn1);
+			stack.Children.Add (btn2);
+			stack.Children.Add (btn3);
+			stack.Children.Add (lbl);
+			lv.Header =  new ContentView { HeightRequest = 300, HorizontalOptions = LayoutOptions.FillAndExpand, Content = stack };
+
+			lv.SetBinding<FooViewModel> (ListView.ItemsSourceProperty, m => m.Things);
+			lv.SetBinding<FooViewModel> (ListView.RefreshCommandProperty, m => m.RefreshThingsCommand);
+			grid.Children.Add (lv, 0, 0);
+
+			Content = grid;
+		}
+
+		public class FooViewModel
+		{
+			List<Group<string>> _things;
+			public List<Group<string>> Things {
+				get 
+				{ 
+					return _things ?? (_things = new List<Group<string>> {
+						new Group<string>(new []{"A","B","C","D","E","F","G","H","I","J","K"}) {Name = "Letters"},
+						new Group<string>(new []{"1","2","3","4","5","6","7","8","9","10"}) {Name = "Numbers"}
+					}); 
+				}
+			}
+
+			bool _canExecute;
+			public bool CanExecute {
+				get 
+				{ 
+					return _canExecute;
+				}
+				set { 
+					_canExecute = value;
+					RefreshThingsCommand.ChangeCanExecute ();
+				}
+			}
+
+			Command _refreshThingsCommand;
+			public Command RefreshThingsCommand {
+				get {return _refreshThingsCommand ?? (_refreshThingsCommand = new Command (BeginRefreshThings, () => _canExecute ));}
+			}
+
+			protected void BeginRefreshThings()
+			{
+
+			}
+		}
+
+		public class Group<T> : ObservableCollection<T>
+		{
+			public Group (IEnumerable<T> seed) : base(seed){}
+
+			public string Name {
+				get;
+				set;
+			}
+		}
+	}
+}
+
+