[working-with] listview context improve behavior

Author: conceptdev

WorkingWithListview/WorkingWithListview/Context/ContextActionsXaml.xaml

@@ -9,9 +9,9 @@
 		    <DataTemplate>
 		      <ViewCell>
 		      <ViewCell.ContextActions>
-		      		<MenuItem Clicked="OnMore"     
+		      		<MenuItem Clicked="OnMore" CommandParameter="{Binding .}"  
 			           Text="More" />
-			       	<MenuItem Clicked="OnDelete"     
+			       	<MenuItem Clicked="OnDelete" CommandParameter="{Binding .}"  
 			           Text="Delete" IsDestructive="True" />
 			   </ViewCell.ContextActions> 
 		      	<StackLayout HorizontalOptions="StartAndExpand" Orientation="Horizontal">	

WorkingWithListview/WorkingWithListview/Context/ContextActionsXaml.xaml.cs

@@ -2,16 +2,20 @@
 using System.Collections.Generic;
 
 using Xamarin.Forms;
+using System.Diagnostics;
 
 namespace WorkingWithListview
 {
 	public partial class ContextActionsXaml : ContentPage
 	{
+
+		List<string> items;
 		public ContextActionsXaml ()
 		{
 			InitializeComponent ();
 
-			listView.ItemsSource = new [] { "alpha", "beta", "gamma", "delta" };
+			items = new List<string> { "alpha", "beta", "gamma", "delta", "epsilon" };
+			listView.ItemsSource = items;
 		}
 
 		public void OnItemSelected (object sender, SelectedItemChangedEventArgs e) {
@@ -27,7 +31,11 @@ public void OnMore (object sender, EventArgs e) {
 
 		public void OnDelete (object sender, EventArgs e) {
 			var mi = ((MenuItem)sender);
-			DisplayAlert("Delete Context Action", mi.CommandParameter + " delete context action", "OK");
+			//DisplayAlert("Delete Context Action", mi.CommandParameter + " delete context action", "OK");
+
+			Debug.WriteLine ("delete " + mi.CommandParameter.ToString ());
+			items.Remove (mi.CommandParameter.ToString());
+			listView.ItemsSource = items;
 		}
 	}
 }