Different icon in WebDataTree when node expanded/collapsed

395

Martin posted over 12 years ago

Hi,

I'm new to Infragistics and i want to use the WebDataTree. I can build the tree and i want to show an icon near each node. This works via NodeSettings. But i want to show a different icon if the node is expanded or collapsed. Like showing an Folder-icon when the node is collapsed and an OpenFolder-icon if it is expanded.

What must i do to achieve that?

Thanks

Martin

395

Martin posted over 12 years ago in reply to [Infragistics] Petar Ivanov

Hi Petar,

i want to reduce Postbacks in my app and want to know if there is an alternative to change the icon, e.g. via CSS and/or JavaScript.

Thanks

Martin
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49378

[Infragistics] Petar Ivanov posted over 12 years ago in reply to Martin

Hi Martin,

Glad to help. Please feel free to contact me should any additional questions arise.
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395

Martin posted over 12 years ago in reply to [Infragistics] Petar Ivanov

Dear Petar,

thanks for your help. Your suggested solution works fine.

Thanks

Martin
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[Infragistics] Petar Ivanov posted over 12 years ago
Hi Martin,

Thank you for posting in the community.

In this scenario I can suggest that you enable postback on NodeExpanded and NodeCollapsed. By handling the respective server-side events you can set the ImageUrl or the target node as needed. For instance:

    protected void WebDataTree1_NodeExpanded(object sender, Infragistics.Web.UI.NavigationControls.DataTreeNodeEventArgs e)
    {
        e.Node.ImageUrl = "~/add_disabled.gif";
    }

Please let me know if this helps.
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