private void Car_OnDrop(object sender, DragEventArgs e) {
var raceGridEntry = e.Data.GetData(RaceGridEntry.DraggableFormat) as RaceGridEntry;
var carObject = e.Data.GetData(CarObject.DraggableFormat) as CarObject;
if (raceGridEntry == null && carObject == null) {
e.Effects = DragDropEffects.None;
return;
}
Model.SelectedCar = carObject ?? raceGridEntry.Car;
e.Effects = DragDropEffects.Copy;
}
}