title: How do i check if the node is expanded in Kendo treeView
body: <p>I have a Kendo treeView. I want to collapse the node on single click (the default is on double click). To do that I need to know if the node is expanded already so I can call collapse(e.node). So, how do I check if the node has been expanded already?</p>
  
  <p>Thanks a lot</p>