Load on-demand - Hide checkBox

[Barbaros Saglamtimur]

Hi,

I have a radtreeview with load on-demand functionality and works fine.
What I would like to do is to hide checkbox for nodes which have child nodes count > 0. For root data it works, but not for child nodes.

Here is my code:

private static void LoadRootNodes(RadTreeView treeView, TreeNodeExpandMode expandMode)
    {
    .
    .
    .
        foreach (var row in sdps)
        {
            RadTreeNode node = new RadTreeNode
                                   {
                                       Text = row.FullText,
                                       Value = row.id.ToString(),
                                       ExpandMode = expandMode
                                   };
            node.Attributes.Add("IdAsText", row.IdAsText);
            if (row.ChildrenCount== 0)
            {
                node.ExpandMode = TreeNodeExpandMode.ClientSide;
            }
            else
            {
        //This works because RadTreeNode has a Checkable propery
                node.Checkable = false;
            }
            treeView.Nodes.Add(node);
        }
    }


   [WebMethod]
    public static RadTreeNodeData[] LoadSdpTreeView(RadTreeNodeData node)
    {
    .
    .
    .
        List<RadTreeNodeData> result = new List<RadTreeNodeData>();
        foreach (var row in childNodes)
        {
            RadTreeNodeData childNode = new RadTreeNodeData { Text = row.FullText, Value = row.id.ToString() };
            childNode.Attributes.Add("IdAsText", row.IdAsText);
            if (row.ChildrenCount > 0)
            {
                childNode.ExpandMode = TreeNodeExpandMode.WebService;
        // This doesnt work because there is no Checkable propery for RadTreeNodeData
        // childNode.Checkable = false;
            }

            result.Add(childNode);
        }

        return result.ToArray();
    }

How can I achieve this?

Thanks in advance.

[Nikolay Tsenkov]

Hi barbaros saglamtimur,

You can use the attributes collection in order to send to the client information about the Checkable property of the nodes. Here is a nice article that explains how you can get access to the attributes collection: http://www.telerik.com/help/aspnet-ajax/treeview-attributes-client-side.html


Regards,
Nikolay Tsenkov
the Telerik team