Hi majida,

Thank you for posting in the community.

Each node's DOM in the UltraWebTree features a getExpanded() function which would allow you to check if the node is expanded/collapsed. For instance you can check whether the first root node is expanded using:

[code]

igtree_getTreeById("UltraWebTree1").getNodes()[0].getExpanded()

[/code]

Checking if the child node of that root node is expanded would look like:

[code]

igtree_getTreeById("UltraWebTree1").getNodes()[0].getChildNodes()[0].getExpanded()

[/code]

You can find more information regardin UltraWebTree's CSOM at:

http://help.infragistics.com/Doc/ASPNET/2011.1/CLR4.0/?page=WebTree_CSOM_Overview.html

Please note that the UltraWebTree control is now outdated. I would suggest that you consider switching to the new WebDataTree control. You can find illustrative samples demonstrating the features of WebDataTree at:

https://www.infragistics.com/products/aspnet/grids-and-lists/tree-list

Please let me know if this helps.

Best Regards,

Petar Ivanov
Developer Support Engineer
Infragistics, Inc.
https://www.infragistics.com/support

Petar Ivanov
Developer Support Engineer
Infragistics, Inc.
https://www.infragistics.com/support