private void flipSwitch(UIKit.UITextField box)
 {
     if (box.Enabled) {
         box.Enabled = false;
         box.Text = "";
         box.ResignFirstResponder ();
     } else {
         box.Enabled = true;
         box.BecomeFirstResponder ();
     }
 }
		public bool HideKeyboard(UIKit.UITextField sender)
		{
			sender.ResignFirstResponder();
			return true;
		}