TileViewOptionsDragDrop.AllowDrag Property
Gets or sets whether the built-in tile drag-and-drop functionality is enabled.
Namespace: DevExpress.XtraGrid.Views.Tile
Assembly: DevExpress.XtraGrid.v19.2.dll
Declaration
[DefaultValue(false)]
[XtraSerializableProperty]
public virtual bool AllowDrag { get; set; }Property Value
| Type | Default | Description |
|---|---|---|
| Boolean | **false** | true if the built-in tile drag-and-drop functionality is enabled; otherwise, false. |
Property Paths
You can access this nested property as listed below:
| Object Type | Path to AllowDrag |
|---|---|
| TileView |
|
Remarks
Use the AllowDrag property to enable the built-in drag-and-drop functionality. Note that built-in tile drag-and-drop operations are reflected at the data source level. When a tile is dropped at a certain position, the Tile View moves the tile’s underlying data record to a corresponding position in the data source.
Tiles can be combined into groups by specifying the group column (TileViewColumns.GroupColumn). If a tile is moved from one group to another group, the underlying record’s group field (GroupColumn.FieldName) is changed accordingly.
You can handle the following events to manage drag-and-drop operations and implement your own algorithm for moving and modifying underlying data records.
- TileView.BeforeItemDrag - Fires when a tile drag operation is about to be started. Allows you to provide a drag image, or to cancel the operation. This event does not fire when you enable drag-and-drop using Drag And Drop Behavior.
- TileView.BeforeItemDrop - Fires when a tile drop operation is initiated. This event does not fire when you enable drag-and-drop using Drag And Drop Behavior.
- TileView.ItemDrop - Fires after a tile drop operation has been completed. This event does not fire when you enable drag-and-drop using Drag And Drop Behavior.