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Clientside select of TreeView node
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David
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David asked on 24 Oct 2011, 08:39 PM
I have an ASP.NET MVC 3 Razor application.  From the Telerik Extensions I'm using the Telerik TreeView.  I've created a breadcrumb path, that when clicked, makes an Ajax POST and pulls/displays the appropriate data.  The last thing I need to figure out is how to de-highlight the previously selected TreeView node and highlight the TreeView node associated with the selected breadcrumb.  Can someone point me in the right direction?
Thank you.

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Dimo
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answered on 25 Oct 2011, 08:03 AM
Hi David,

The TreeView selection is purely visual and implies appending a "t-state-selected" CSS class to the <span class="t-in"> element, which is inside the TreeView item wrapper - a <li class="t-item"> element.

Greetings,
Dimo
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David
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answered on 25 Oct 2011, 03:24 PM

Thanks for your help.
Specifically I found the following to work for me.

function onClickFollowBreadcrumb(e) {
    var treeview = $("#TheTreeView").data("tTreeView");
    // To clear any "selected" node:
    $(".t-state-selected", treeview.element).removeClass('t-state-selected');
    // Get the node based upon what part of the breadcrumb was selected.
    var findString = ".t-input[name='itemValue'][value='" + e + "']";
    var item = $("#TheTreeView").find(findString).closest("li");
    // Programmatically "click" the desired node.
    item.find(".t-in:first").trigger("click");
    return true;
}
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