BoldSignEasily embed eSignatures in your .NET applications. Free sandbox with native SDK available.
public class MyGridControl : GridControl { protected override void OnDragDrop(DragEventArgs drgevent) { Console.WriteLine("MyGridControl.OnDragDrop"); } protected override void OnDragOver(DragEventArgs drgevent) { //do nothing } protected override void OnDragEnter(DragEventArgs drgevent) { if(drgevent.Data.GetDataPresent(DataFormats.Text)) drgevent.Effect = DragDropEffects.Move; //maybe Copy? else drgevent.Effect = DragDropEffects.None; } }