I have added a new button to a radeditor control which is working fine, however when I try and access controls within the aspx page that is displayed using the $find() method I am getting null values returned.
var treeview = $find("<%=uiRadTreeView.ClientID %>");
var node = treeview.findNodeByValue(nodeId);
Gives me the following error:
Microsoft JScript runtime error: 'null' is null or not an object.
Any help would be much appreciated.