System.Windows.Forms.Control.DoDragDrop C# (CSharp) Method

		public DragDropEffects DoDragDrop (object data, DragDropEffects allowedEffects)
		{
			DragDropEffects result = DragDropEffects.None;
			//TODO: fixme
			//if (IsHandleCreated)
			//	result = XplatUI.StartDrag(Handle, data, allowedEffects);
			OnDragDropEnd (result);
			return result;
		}

        /// <summary>
        /// Performs a default drag and drop operation for the specified drag source.
        /// </summary>
        /// <param name="control">The drag source Control.</param>
        /// <param name="dataObject">The data object associated to the drag and drop operation.</param>
        /// <param name="allowedEffects">The allowed drop effects.</param>
        /// <param name="data">The associated data.</param>
        /// <returns>The accepted drop effects from the completed operation.</returns>
        private static DragDropEffects DoDragDropInternal(Control control, IDataObject dataObject, DragDropEffects allowedEffects, KeyValuePair <string, object>[] data)
        {
            // Set the data onto the data object.
            if (data != null)
            {
                foreach (KeyValuePair <string, object> dataPair in data)
                {
                    dataObject.SetDataEx(dataPair.Key, dataPair.Value);
                }
            }

            try
            {
                return(control.DoDragDrop(dataObject, allowedEffects));
            }
            finally
            {
                UnregisterDefaultDragSource(control);
            }
        }