Recursive selection children only

[miro mrazik]

Greetings,

I have a problem with recursive selection. Treelist selects recursively whole branch of selected node (all its ancestors and descendants). This behavior is pretty "unconfortable" for me. If my nodes are folders and files and I select a subfolder and I want to delete it with it contents for example then I cerainly don't want to delete its parent folder (or any of its ancestors) so I would like to ask if there is any way how to make treelist to recursively select only descendant nodes of selected item.

Thanks in advance
Miro 

[Tsvetina]

Hello Miro,

Instead of recursive selection, you can manually select the children of a given item.

<ClientSettings Selecting-AllowItemSelection="true">
    <ClientEvents OnItemSelected="ItemSelected" OnItemDeselected="ItemDeselected" />
</ClientSettings>

<script type="text/javascript">
    function ItemSelected(sender, args) {
        var item = args.get_item();
        var childItems = item.get_childItems();
        for (var i = 0; i < childItems.length; i++) {
            childItems[i].set_selected(true);
        }
    }

    function ItemDeselected(sender, args) {
        var item = args.get_item();
        var childItems = item.get_childItems();
        for (var i = 0; i < childItems.length; i++) {
            childItems[i].set_selected(false);
        }
    }
</script>

However, this can only be done for already expanded items. Non-visible children will not be selected, unless you extend the custom logic to check for not selected children of an item after it is expanded.

Kind regards,
Tsvetina
the Telerik team

[Priya]

Hi ,
Thanks for your code, it works when the nodes are already expanded i.e. parent and child all are visible, but it does not work when the view is collapsed (at initial load). evn if I select the parent and expand the node the children are not selected and this is because children are not created at initial load and they are created when we expand the node for the first time.
Please let me know if you have any solution for this. Thanks in advance.