Expand nodes from client side

[Alan]

How can I expand all nodes of a treeview on a button click from clientside. If any one is expanded do nothing.

[Shinu]

Hi Alan,

Try the following javascript to achieve your scenario.

JS:

<script type="text/javascript" >

        function OnClientClick()

        {
                var tree = $find("<%=RadTreeView1.ClientID %>");


            var flag = 0;

            var nodes = tree.get_allNodes();

            for (var i = 0; i < nodes.length; i++)

            {

                if (nodes[i].get_expanded())

                {

                    flag = 1;

                }

            }

            if (flag == 0)

            {

                for (var i = 0; i < nodes.length; i++)

                {

                    nodes[i].expand();

                }

            }

 

        }

    </script>

Thanks,
Shinu.

[Shinu]

.