Hi rwozniak,
Indeed the current load on demand logic does not support the ContentCssClass property. I have logged it for implementation for the next release. For now you can use this as a workaround:
<script type="text/javascript">
function
nodeDataBound(sender, args)
{
var node = args.get_node();
var dataItem = args.get_dataItem();
Sys.UI.DomElement.addCssClass(node.get_contentElement(), dataItem["ContentCssClass"]);
}
</script>
<telerik:RadTreeView runat="Server" ID="RadTreeView1"
OnClientNodeDataBound="nodeDataBound" >
<WebServiceSettings Method="GetNodes" Path="webService.asmx" />
<Nodes>
<telerik:RadTreeNode runat="server" ExpandMode="WebService" >
</telerik:RadTreeNode>
</Nodes>
</telerik:RadTreeView>
All the best,
Albert
the Telerik team
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