public void InitEventHandlers(OSAvailabilityViewController grandparent)
        {
            controller = grandparent;

            closeButton.TouchUpInside -= DeleteButtonClicked;
            editButton.TouchUpInside  -= EditButtonClicked;

            closeButton.TouchUpInside += DeleteButtonClicked;
            editButton.TouchUpInside  += EditButtonClicked;
        }
 public OSAvailabilityTableSource(OSAvailabilityViewController parent) : base()
 {
     controller = parent;
 }