Binding to ListView item tapped property from View Model

Question

I am trying to bind an event to a ListView, on my menu page, using the itemtapped property. Currently I am using MVVM (Xamarin form labs) framework in my app. What I am trying t

Answer 1

Alternatively you can use an Attached Behavior

public static class ListViewAttachedBehavior
{
    public static readonly BindableProperty CommandProperty =
        BindableProperty.CreateAttached (
            "Command",
            typeof(ICommand),
            typeof(ListViewAttachedBehavior),
            null,
            propertyChanged:OnCommandChanged);

    static void OnCommandChanged (BindableObject view, object oldValue, object newValue)
    {
        var entry = view as ListView;
        if (entry == null) 
            return;

        entry.ItemTapped += (sender, e) => 
            {
                var command = (newValue as ICommand);
                if(command == null)
                    return;

                if(command.CanExecute(e.Item))
                {
                    command.Execute(e.Item);
                }

            };
    }
}

Then call it on your ListView