/// <summary>
/// Gets invoked when drag helper detects that a drag source has been dragged far enough
/// for drag operation to initiate. If this method is overriden, deriving class must ensure
/// that base implementation is invoked.
/// </summary>
protected virtual void DoDragDrop()
{
var eventArgs = new QueryDragDataEventArgs(_clickPoint);
OnQueryDragData(eventArgs);
if (eventArgs.IsCancelled || eventArgs.DragData == null)
{
return;
}
OnDragStarted(eventArgs.DragData);
_adorner = new DragDropAdorner(_dragSource, _clickPoint);
DragDropEffects result = DragDrop.DoDragDrop(
_dragSource, eventArgs.DragData, DragDropEffects.Move | DragDropEffects.Link);
_adorner.RemoveAdorner();
_adorner = null;
OnDragComplete(eventArgs.DragData, result);
}
/// <summary>
/// Gets invoked when drag helper detects that a drag source has been dragged far enough
/// for drag operation to initiate. If this method is overriden, deriving class must ensure
/// that base implementation is invoked.
/// </summary>
protected virtual void DoDragDrop()
{
var eventArgs = new QueryDragDataEventArgs( _clickPoint );
OnQueryDragData( eventArgs );
if( eventArgs.IsCancelled || eventArgs.DragData == null ) return;
OnDragStarted( eventArgs.DragData );
_adorner = new DragDropAdorner( _dragSource, _clickPoint );
DragDropEffects result = DragDrop.DoDragDrop(
_dragSource, eventArgs.DragData, DragDropEffects.Move | DragDropEffects.Link );
_adorner.RemoveAdorner();
_adorner = null;
OnDragComplete( eventArgs.DragData, result );
}