AcManager.UserControls.RaceGridEditorColumn.ItemsControl_OnDrop C# (CSharp) Method

        private void ItemsControl_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 || Model == null) {
                e.Effects = DragDropEffects.None;
                return;
            }

            var newIndex = ((ItemsControl)sender).GetMouseItemIndex();
            if (raceGridEntry != null) {
                Model.InsertEntry(newIndex, raceGridEntry);
            } else {
                Model.InsertEntry(newIndex, carObject);
            }

            e.Effects = DragDropEffects.Move;
        }