RadTreeNode cannot set unchecked from client side

[Dev]

Hi !

I have a RadTreeview to which I have set properties CheckBoxes="true"  and OnClientNodeChecking="ClientNodeChecking".

Now, at server-side RadTreeViewMain_NodeDataBound() event I am setting e.Node.Checkable = false; for all nodes.

Then I am checking e.Node.Category from database for each node and if node is of "Option" category, then I am setting e.Node.Checkable = true;

at client-side I have defined a javascript function which is used to uncheck all of the child nodes of the node on unchecking itself.

Surprisingly, it works fine fist time when I check the node and uncheck the same. But after that if I click the same node to make it checked, it shows it is already checked, while in UI it is not checked.

Javascript functions are as below :

function ClientNodeChecking(sender, eventArgs) {
    var node = eventArgs.get_node();
    var parent = node.get_parent();
    var t = node.get_treeView();
    var preventCheck = false;
    var isMultiSelect = parent.get_attributes().getAttribute("multiSelect");
    var allNodes = parent.get_allNodes();
    var value = node.get_value();
    var checkstate = node.get_checkState();
    var level = node.get_level();
    var errormessage = "";

    if (checkstate == 1) {
        t.trackChanges();
        node.uncheck();
        getAllChildUnchecked(node);
        t.commitChanges();
        return;
    }

    if (level > 2) {
        var grandParent = parent.get_parent();
        var grandParentCategory = grandParent.get_category();

        if (grandParentCategory == "Option" && !grandParent.get_checked()) {

            // you can add simple alert message here..
            //errormessage = "The parent node is not checked.";
            //openDialogPreventChecked(errormessage);
            eventArgs.set_cancel(true);
            return;
        }
    }
    if (allNodes.length > 0) {
        for (var i = 0; i < allNodes.length; i++) {
            var childnode = allNodes[i];
            var childvalue = childnode.get_value();
            if (childnode.get_checked() && isMultiSelect == "false" && value != childvalue) {
                preventCheck = true;
                break;
            }
        }
    }
    if (preventCheck) {
        // you can add simple alert message here..
        eventArgs.set_cancel(true);
        //errormessage = "This is not multi-select type of question";
        //openDialogPreventChecked(errormessage);
    }
}

function getAllChildUnchecked(node) {
    var childNodes = node.get_allNodes();
    if (childNodes.length > 0) {
        for (var i = 0; i < childNodes.length; i++) {
            var childnode = childNodes[i];
            childnode.uncheck();
            getAllChildUnchecked(childnode);
        }
    }
}

Kindly provide me some efficient solution. Awaiting for your valuable response.

Thanks,
Dev

[Dev]

Resolved my self :

function ClientNodeChecking(sender, eventArgs) {
    var node = eventArgs.get_node();
    var parent = node.get_parent();
    var t = node.get_treeView();
    var isMultiselect = node.get_attributes().getAttribute("multiSelect");
    var siblingNodes = parent.get_allNodes();
    var isSiblingChecked = false;
    var level = node.get_level();
    if (!node.get_checked()) {
        if (level > 2) {
            var grandParent = parent.get_parent();
            if (!grandParent.get_checked()) {
                eventArgs.set_cancel(true);
                errormessage = "Parent node is not checked";
                openDialogPreventChecked(errormessage);
                return;
            }
        }
        if (siblingNodes.length > 0) {
            for (var i = 0; i < siblingNodes.length; i++) {
                var siblingNode = siblingNodes[i];
                if (siblingNode.get_checked()) {
                    isSiblingChecked = true;
                    break;
                }
            }
        }
        // Check whether the node if of multiselect type
        if (isMultiselect == "false" && isSiblingChecked) {
            eventArgs.set_cancel(true);
            errormessage = "This is not multi-select type of question";
            openDialogPreventChecked(errormessage);
            return;
        }
    }
}

function ClientNodeChecked(sender, eventArgs) {
    var node = eventArgs.get_node();
    var t = node.get_treeView();
    t.trackChanges();
    getAllChildUnchecked(node);
    t.commitChanges();
}

function getAllChildUnchecked(node) {
    var childNodes = node.get_allNodes();
    if (childNodes.length > 0) {
        for (var i = 0; i < childNodes.length; i++) {
            var childnode = childNodes[i];
            childnode.uncheck();
            getAllChildUnchecked(childnode);
        }
    }
}

P.S. Telerik should update this editor to post question and answer. I am tired of making code blocks readable so just have posted answer without code block. Check out with stackoverflow,.com.

Thank you,
Dev