Determine if Node is Expanding or Contracting in NodeExpandedChanging Event

[Paul]

Is there a way to determine whether a node is expanding or collapsing when handling the NodeExpandedChanging event?

[Stefan]

Hello Paul,

Thank you for writing. 

The NodeExpandedChanged event gets triggered when the expanded state of a node is changed, so you can check the e.Node.Expanded state and if it is true, this means that the node was not expanded and it now is. On the contrary, if is it false, this means that the node was expanded and not is it not.

I hope this helps. 

Regards,
Stefan
Telerik

[Paul]

Thanks. Not sure how I missed the Expanded property. Since I'm using the NodeExpandedChanging event, I just make sure Expanded is false to verity that the node is currently expanding.