protected override void OnDrop(DragEventArgs e)
{
int index = addAtEndMarker;
WorkflowViewElement dropTarget = null;
if (e.OriginalSource is WorkflowViewElement)
{
dropTarget = (WorkflowViewElement)e.OriginalSource;
}
else
{
dropTarget = VisualTreeUtils.FindFocusableParent <WorkflowViewElement>((UIElement)e.OriginalSource);
}
if (null != dropTarget && null != dropTarget.ModelItem)
{
int targetIndex = this.Items.IndexOf(dropTarget.ModelItem);
if (-1 != targetIndex)
{
index = targetIndex + 1;
}
}
OnItemsDropped(e, index);
base.OnDrop(e);
}
