Crashing on Setting Name Property

[Ben Boger]

I have a function that builds my tree as needed. This works and it works well. The problem is that I would like to be able to use the function FindName from RadTreeView Item in another area. so all I add to my creating of the RadTreeViewItem is Name=newNodeString. 

When I do this the program crashes after return the list of nodes.

Take out that line everything, except the new feature I am trying to add, works fine.

  private static void BuildTree(ItemCollection items, List<string> treeNodes,int parentIndex)
{
    if (parentIndex >= treeNodes.Count) return;

    var newNodeString = treeNodes[parentIndex++];

    RadTreeViewItem newNode = (RadTreeViewItem)items.FirstOrDefault((i) => (string) ((RadTreeViewItem)i).Header == newNodeString);

    if(newNode == null)
    {
        newNode = new RadTreeViewItem {Header = newNodeString };

        if(treeNodes.Count == 0)//means this will be a child
        {
            newNode.Selected += (o, e) => { e.Handled = true; };
        }
        else
        {
            newNode.Selected += (o, e) =>
            {
                RadTreeViewItem item = o as RadTreeViewItem;
                if (item.HasItems)
                {
                    ((RadTreeViewItem)item.Items[0]).IsSelected = true;
                }
                e.Handled = true;
            };
            newNode.IsExpanded = true;
        }
        items.Add(newNode);
    }

    BuildTree(newNode.Items,treeNodes,parentIndex);
}

[Miroslav]

Hi Ben Boger,

This error comes up most probably because the same name has already been given to a visual element. Two names cannot be the same within the same name scope.

Can this be in your case?

Greetings,
Miroslav
the Telerik team

[Ben Boger]

Originally I thought I had checked for that but upon a more thorough lookthrough I did indeed have duplicate names