/// <summary>
/// Find the NodeItem UI element that is associated with 'node'.
/// 'node' can be a view-model object, in which case the visual-tree
/// is searched for the associated NodeItem.
/// Otherwise 'node' can actually be a 'NodeItem' in which case it is
/// simply returned.
/// </summary>
internal NodeItem FindAssociatedNodeItem(object node)
{
NodeItem nodeItem = node as NodeItem;
if (nodeItem == null)
{
nodeItem = nodeItemsControl.FindAssociatedNodeItem(node);
}
return(nodeItem);
}
