Disable parent node(dynamic) click in radtreeview

[Swapnil]

Hi,
i am using rad treeview,so how can i Disable parent node(dynamic) click in radtreeview.
Thanks

[Shinu]

Hi Swapnil,

Please have a look into the following JavaScript to disable the click of RadTreeView parent node.

JavaScript:

<script type="text/javascript">
    function pageLoad() {
        var tree = $find("<%=RadTreeView1.ClientID %>");
        for (var i = 0; i < tree.get_allNodes().length; i++) {
            if (tree.get_allNodes()[i]._hasChildren() == true) {
                tree.get_allNodes()[i].set_enabled(false)
            }
        }
    }
</script>

Thanks,
Shinu.

[Swapnil]

i dont want like this,
i am having parentnode as company name and child node as entityname
onclick of that entityname it goes in click event giving entityname,thats why dont click on parent node
Thanks.

[Shinu]

Hi Swapnil,

I guess you want to disable the click event of RadTreeView Parent node. Please have a look into the following code snippet which works fine at my end.

ASPX:

<telerik:RadTreeView ID="RadTreeView1" runat="server" OnClientNodeClicking="OnClientNodeClicking1"
    DataFieldID="id" DataFieldParentID="parentid" DataTextField="text" DataSourceID="SqlDataSource1">
</telerik:RadTreeView>

JavaScript:

<script type="text/javascript">
    function OnClientNodeClicking1(sender, args) {
        if (args.get_node()._hasChildren() == true) {
            args.set_cancel(true);
        }
        else {
            alert(args.get_node().get_text());
        }
    }
</script>

Let me know if you have any concern.
Thanks,
Shinu.

[Swapnil]

this is working fine in the case where parent node having child node
but in case of single parent node it is clicking to that node
Thanks

[Shinu]

Hi Swapnil,

Please have a look into the following code snippet.

JavaScript:

<script type="text/javascript">
    function OnClientNodeClicking1(sender, args) {
        var node = args.get_node();
        if (node.get_parent() == node.get_treeView() || args.get_node()._hasChildren() == true) {
            args.set_cancel(true);
        }
        else {
            alert(args.get_node().get_text());
        }
    }
</script>

Thanks,
Shinu.

[Nencho]

Hello,

The Shinu's suggestion is correct and applicable. Another possible approach to determine if the currently selected node is a parent is by verifying if the parent node (get_parent()) has an id. If it does - it would mean that a reference to the RadTreeView is obtained and this node is a root node:

                var isParent;

            if (args.get_node().get_parent().get_id != undefined) {
                isParent = true
            }

Regards,
Nencho
Telerik