void Buttons_ButtonEvent(UIButtonCollection group, UIButtonCollectionEventArgs args)
{
if (args.EventType == UIButtonEventType.Released)
{
UIActionSheetButton responseButton = args.Button as UIActionSheetButton;
action = responseButton.Action;
this.Hide();
}
}
public virtual void AddButton(UIActionSheetButton button)
{
this.Buttons.Add(button);
}