DragDropBehaviorProperties.PreviewVisible Property

Gets or sets whether a preview of the dragged element is displayed during a drag-and-drop operation.

Namespace: DevExpress.Utils.DragDrop

Assembly: DevExpress.Utils.v26.1.dll

NuGet Packages: DevExpress.Utils, DevExpress.Wpf.Core

Declaration

C#

[DefaultValue(true)]
[DXCategory("Customization")]
public bool PreviewVisible { get; set; }

VB.NET

<DefaultValue(True)>
<DXCategory("Customization")>
Public Property PreviewVisible As Boolean

Property Value

Type	Default	Description
Boolean	true	true to display a preview of the dragged element; otherwise, false.

Remarks

During a drag-and-drop operation, the Behavior Manager shows a preview of dragged data elements near the mouse pointer. You can use the DragDropManager.PreviewShowMode property to disable the preview image or enable it for target controls only.

If this setting is enabled, you can disable a particular control’s preview with the DragDropBehavior.Properties.PreviewVisible property.

To customize the preview image, use the following options:

• the PreviewImage event argument in a DragDropManager.QueryDragPreviewImage event handler

• the PreviewImage event argument in a DragDropEvents.BeginDragDrop event handler

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the PreviewVisible property.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

drag-drop-grid-rows-to-treelist/CS/DragAndDropRows/Form1.cs#L56

    behavior.Properties.InsertIndicatorVisible = true;
    behavior.Properties.PreviewVisible = true;
});

VB.NET

drag-drop-grid-rows-to-treelist/VB/DragAndDropRows/Form1.vb#L55

    behavior.Properties.InsertIndicatorVisible = True
    behavior.Properties.PreviewVisible = True
End Sub)