unable to retrieve checked nodes in tree view

[Vinay]

Hi I have a tree view with checkboxes on each node. I have written some javascript to check relevant nodes when parent and child nodes on the tree view.

When i try to iterate through nodes on server side ie

foreach (RadTreeNode node in RadTree.CheckedNodes)
{
    string value = node.Text.ToString();
}

the value of CheckedNodes.Count = 0

Here is what I do with the javascript to check nodes

var node = args.get_node();
var parentnode = node.get_parent();
if (!node.get_checked()) {
    var childNodes = node._getChildren();
    var nodeArray = childNodes.toArray();
    for (var i = 0; i < nodeArray.length; i++) {
        nodeArray[i].set_checked(true);
        var GrandChildren = nodeArray[i]._getChildren();
        var nodeGCArray = GrandChildren.toArray();
        for (var x = 0; x < nodeGCArray.length; x++) {
            nodeGCArray[x].set_checked(true);
        }
    }

please help ..

[Dimitar Terziev]

Hello Vinay,

As i see you are using your private function to check all of the child items when a parent item is checked. My suggestion is to use the property CheckChildNodes, when set to true it will automatically check all child items.After that it shouldn't be a problem to get the count of the checked items on the server-side.


All the best,
Dimitar Terziev
the Telerik team

[Vinay]

<td><telerik:RadTreeView ID="RadTree" runat="server" CheckBoxes="true" CheckChildNodes="true" OnClientNodeChecked="beforeClientCheck"></telerik:RadTreeView></td><td><td><telerik:RadTreeView ID="CloneRadTree" runat="server"></telerik:RadTreeView></td></td>

I have done this in the aspx page.

There does not seem to be a difference. Perhaps it would help to know that I am populating the Radtree using XML generated from a webservice. I do have a custom Attribute called Clone in node element.

I have also attached an image whilst debugging that shows the value of a few variables, such as checked state etc. Note  that checkable value in the node is True but the status is unchecked. Though I have checked it in the aspx page.

[Vinay]

Sorry for wasting your time. It was because i did not check the IsPostBack == false on the Page_load method. Works fine ! My apologies.