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   [Collapse]Drag-and-Drop
     Drag-and-Drop Options
     Drag-and-Drop Within GridControl
     Drag-and-Drop Between GridControl and ListBoxEdit
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Drag-and-Drop Between Applications

The GridControl allows dragging records and dropping them in external applications. This topic demonstrates how to implement this behavior.

The following image shows a drag-and-drop operation between GridControls in different applications:

Follow the steps below to implement drag-and-drop between different applications:

Expanded Steps 1-2. Add Controls

  1. Add the GridControl to the first application:

  2. Add the GridControl to the second application:

Expanded Steps 3-5. Allow Drag-and-Drop

  1. Set the DataViewBase.AllowDragDrop property to true to enable drag-and-drop in the GridControl from the first application:

  2. Set the DataViewBase.AllowDragDrop property to true to enable drag-and-drop in the GridControl from the second application:

  3. Now you can drag records from the first application but not drop them in the second one. The following steps to allow dropping:

Expanded Steps 6-8. Transfer Data Between Applications

Drag-and-drop between applications requires:

  • A basic data type (such as string, int, etc.) or
  • An object that implements the ISerializable interface which allows .NET to transfer your object into a stream of bytes and reconstruct the object in another application domain.
  1. Apply the SerializableAttribute attribute to the data type involved in the drag-and-drop operation to indicate that instances of this type can be serialized:

  2. Serialize data that is transferred from the first application:

  3. Retrieve serialized data that is transferred to the second application:

Expanded See Also

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