protected virtual void SetDragDropBehavior()
{
this.DisposeDragHint();
this.dragDropBehavior = this.GetDragDropBehavior();
if (this.dragDropBehavior == null)
{
return;
}
this.PrepareDragHint(this.DropTarget);
}
protected override void PerformStop()
{
SnapshotDragItem context = this.Context as SnapshotDragItem;
if (context != null)
{
context.Capture = false;
context.Item.IsMouseDown = false;
}
base.PerformStop();
this.DisposeDragHint();
this.dragDropBehavior = (IGridDragDropBehavior)null;
this.lastDropPosition = RadPosition.None;
}
protected virtual IGridDragDropBehavior GetDragDropBehavior()
{
IGridDragDropBehavior dragDropBehavior = (IGridDragDropBehavior)null;
ISupportDrop dropTarget = this.DropTarget;
if (dropTarget is GridHeaderCellElement)
{
dragDropBehavior = (IGridDragDropBehavior) new GridColumnDragDropBehvavior();
}
else if (dropTarget is GridDataRowElement)
{
dragDropBehavior = (IGridDragDropBehavior) new GridRowDragDropBehavior();
}
else
{
GroupFieldElement groupFieldElement = dropTarget as GroupFieldElement;
}
dragDropBehavior?.Initialize(this.GridViewElement);
return(dragDropBehavior);
}