This demo illustrates the DevExpress ASP.NET Upload Control’s (ASPxUploadControl) support for drag and drop operations. This feature allows end-users to select one or more files and drag them to the upload control and add files to the control file list.
By default, drag and drop functionality is disabled. To enable it, set the UploadMode property to Advance and switch the EnableDragAndDrop property to true.
The ASPxUploadControl allows you to specify external zones where files can be dropped and added to the upload control’s file list. To specify drop zones, list zone IDs in the ExternalDropZoneID property. When a file is being dragged over a drop zone, the following events are raised.
- The DropZoneEnter event is raised when the mouse enters a drop zone element while dragging a file.
- The DropZoneLeave event is raised when the mouse leaves a drop zone element while dragging a file.