Hi Ilkin,

Thank you for posting in the community.

A sample illustrating the client-side events of WebDataMenu is available at:

http://samples.infragistics.com/aspnet/Samples/WebDataMenu/EditingAndSelection/ClientEvents/Default.aspx?cn=data-menu&sid=e7f94567-f103-46b4-92bd-911535d155e9

The client-side object model documentation for WebDataMenu can be found at:

http://help.infragistics.com/NetAdvantage/ASPNET/2011.2/CLR4.0/?page=WebDataMenu~Infragistics.Web.UI_namespace.html

Please feel free to contact me if you have any questions.