/// <summary>
/// Raises the DragStarted event.
/// </summary>
/// <param name='args'>
/// Arguments.
/// </param>
protected virtual void OnDragStarted(DragStartedEventArgs args)
{
if (dragStarted != null)
dragStarted (this, args);
}
protected DragStartData InternalDragStarted()
{
DragStartedEventArgs args = new DragStartedEventArgs ();
args.DragOperation = new DragOperation (this);
currentDragOperation = args.DragOperation;
OnDragStarted (args);
return args.DragOperation.GetStartData ();
}