[CLOSED] TreeList filterBy very slow with more than 2500 nodes

[adrianot]

Hi, I am loading into a treeList about 2500 nodes.

The Tree loads fine and quickly. I am able to navigate the hierarchy node by node.

However, as soon as I try to "filterBy" the TreeList against that tree, Chrome CPU goes at 100% and memory usage jumps at 1,8 GB locking the entire system. Reducing the # of items reduces the issue but it looks like it's exponentially slow.

   
    var textFilter = 'text';
    var re = new RegExp(".*" + textFilter + ".*", "i");
    tree.filterBy(function (node) {
        return re.test(node.data.name);
    }, {
        autoClear: true,
        expandNodes: true
    });

Is this a known issue/limitation? Or, is it there a way to avoid this issue?

Thank you for help.
Cheers

[Daniil]

Hi @adrianot,

Well, we have implemented filtering as optimal as we could. So, I would say it is a limitation. But not of our filtering, it is rather a limitation of a browser and its JavaScript engine:)

Maybe, you could filter the tree on the server and rebind like in this example:
https://examples2.ext.net/#/TreePane...h_Static_Tree/

It should work faster, probably.