[Solved] Better way to traverse the tree and expand/collapse all nodes?

[Wai Kei]

Dear Telerik support and other members,

   Currently I have a jQuery method to expand all nodes using the following logic. For a small tree (< 50 items) it works fine. But if I have a tree structure with over 200 nodes, it takes a while before the system respond. I am thinking I might have a performance issue in traversing the tree nodes below.....Could someone please advise.

    var allNodes = $('#TreeView').find("li:has(ul)");
    $.each(allNodes, function(index, node) {    
        treeView().expand(node);
    });

Thanks,

Wai Kei

[Alex Gyoshev]

Hello Wai Kei,

Try $('#TreeView').data('tTreeView').expand("li:has(ul)");

If this doesn't help, serializing the nodes as expanded from the server is your best option.

All the best,
Alex Gyoshev
the Telerik team