Thank you for contacting us.
Could you please share some more detail regarding the exact requirement? Which WPF controls are you using and what exactly mean by "drop preview
As for the DragVisual - by default it is managed from the source of the drag drop operation which in your case would be the Explorer and you can modify it anyhow. However what you can do would be to use a ToolTip in order to display information about the dragged object and implement custom logic in order to keep it shown and positioned correctly when dragging over the WPF control. You can get the information about the dragged item using our DragDropPayloadManager
as shown below:
if (DragDropPayloadManager.GetDataPresent(e.Data, DataFormats.FileDrop.ToString()))
string files = (string)DragDropPayloadManager.GetDataFromObject(e.Data, DataFormats.FileDrop);
Hope this will help you to achieve the desired. If you have any further questions let us know.
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