RadTreeNode expandable but not selectable?

[Marja]

Hi,

I use a RadTreeView to display a multi-level tree of news categories with their respective news items.

I want only the deepest node leveI (being the news item nodes) to be selectable, And so I would like the category nodes to be expandable, but not selectable. 

Setting the 'enabled' property of a category node to True also blocks its expandability, so that doesn't work for me.

Can you give me any pointers on how to make a RadTreeNode expandable but not selectable?
Thanks in advance.

Best regards, Marja

[Shinu]

Hi Marja,

Please try the following JavaScript to achieve your scenario.

JavaScript:

<script type="text/javascript">
    function pageLoad() {
        var tree = $find("<%=RadTreeView1.ClientID %>");
        tree.findNodeByText("Politics").expand();
    }
</script>

Thanks,
Shinu.

[Marja]

Thank you for your reply, but that's not what I'm after. That's only expanding one branch statically, on page load.

I want the user to be able to expand/collapse tree branches as he pleases, while on the page, but only be able to really select the deepest nodes in the tree.

[Shinu]

Hi Marja,

Please try the following JavaScript code snippet to select only the deepest nodes in RadTreeView.

JavaScript:

<script type="text/javascript">
    function OnClientNodeClicking1(sender, args) {
        var index = args.get_node().get_parent().get_nodes().get_count();
        if (args.get_node().get_parent().get_nodes()._array[index - 1].get_text() != args.get_node().get_text())
            args.set_cancel(true);
    }
</script>

Hope this will helps you.
Thanks,
Shinu.

[Anders]

I do not understand why you propose solutions involving scripting. Isnt that just workarounds?

[Veselin Tsvetanov]

Hi Anders,

You have posted similar question in another Forum thread (Make node not selectable but expandable). I would suggest you to continue the discussion on this topic there.

Regards,
Veselin Tsvetanov
Telerik