In addition to the rich client side events introduced in Events and Life Cycle, WebDragDropExtender understands the developer's needs to perform business logics and processes in server side by using managed language.
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WebDragDropExtender provides built-in features to perform auto postback upon a successful drag-drop operation. The control will firstly invoke OnDragDrop client side event and then proceed to the postback if the return value of the OnDragDrop client side handler is true. This gives you flexibility to control whether a postback should be preceded by specifying return value of the OnDragDrop clent side handler. In the server side, you handle the DragDrop server side event to perform tasks. |
WebDragDropExtender includes two properties related to auto postback:
- AutoPostBackOnDragDrop. The default value is No. Set this property to true to let the control perform postback automatically upon drag drop operation.
- PostBackMode. The default value is FullPostBack. Set this property to FlyPostBack to perform the postback in AJAX way.
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Both properties are available in DropSettings of the WebDragDropExtender instance. |