Inheritance: BaseAdapter
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate (bundle);

            // Set our view from the "main" layout resource
            SetContentView (Resource.Layout.Master);

              ListAdapter = new MasterAdapter(this, ViewModel.Items);

            ListView.ItemLongClick += (sender, e) => {
                ViewModel.DeleteCommand.Execute(e.Position);
            ((MasterAdapter)ListAdapter).NotifyDataSetChanged();
            };
        }
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            // Set our view from the "main" layout resource
            SetContentView(Resource.Layout.Master);


            ListAdapter = new MasterAdapter(this, ViewModel.Items);

            ListView.ItemLongClick += (sender, e) => {
                ViewModel.DeleteCommand.Execute(e.Position);
                ((MasterAdapter)ListAdapter).NotifyDataSetChanged();
            };
        }