Collapse Child PanelBars when parent is closed

[Roger]

I have a Multi-levelled PanelBar.  If the user opens up into, say level3 and then closes the root, I want to collapse all child panels, so that when they open from the root again all children are collapsed.

Can this be done?

[Roger]

I have implemented this which seems to work - I post it incase it will help others.  I need this because I have several levels of information and it just gets very cluttered and the user gets a little bit "lost" during navigation!

<script type="text/javascript">

    function OnClientItemCollapse(sender, eventArgs) {

        var item = eventArgs.get_item();

        if (item.get_level() != 0) {

            return;

        }

        var childItems = item.get_items();

        var childItemsArray = childItems.toArray();

        if (childItemsArray) {

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

                childItemsArray[i].collapse();

            }

        }

    }

</script>


I am building the PanelBar programmatically so add the OnClientItemCollapse definition in the code behind.

Roger