Hello Robson,

Thank you for your post.

I have been looking into it and I am not sure that I understand correctly  what you are trying to achieve. If I understand correctly your requirement the following forum thread could be of help to you, please take a look at the following link:

http://es.infragistics.com/community/forums/t/96654.aspx

where similar functionality was achieved.

Please look at the sample application from this thread  and if it doesn’t cover your expectations feel free to modify it, so you reproduce the described behavior and send it back to me for further investigation or provide me with more details about your requirements in order to be able to investigate it further for you  and support you.

Looking forward to hearing from you.