TreeView expand

Nuno Aguiar

Posted on 08/03/2012 17:43:04

Hi,

We want to build a tree using DW's treeview control, but with some nodes expandable/collapsable (similar to pages) and then capture the event in order to load it's subitems.

Here's the control
<dw:Tree ID="navigationTree" runat="server" OpenAll="False" SubTitle="Module Administration" TranslateTitle="True" TranslateSubTitle="True">

Can anyone help me?

Best Regards,
Nuno

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Pavel Volgarev

Posted on 08/03/2012 17:52:53

This post has been marked as an answer

Hi Nuno,

First of all, you need to set the "LoadOnDemand" property of the Tree control to "True". Next, you need to subscribe to "NodeExpand" event and populate the collection on your child nodes from within your event handler:

protected void navigationTree_NodeExpand(object sender, Dynamicweb.Controls.TreeNodeExpandedEventArgs e)
{
    e.ChildNodes.Add(new Dynamicweb.Controls.TreeNode() { /* Initialize properties */ });
}

Check out the documentation for the Tree control: Dynamicweb Controls - API documentation.

-- Pavel

Votes for this answer: 0

Nuno Aguiar

Posted on 12/03/2012 16:04:14

Hi Pavel,

Thanks

Nuno

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TreeView expand

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