Hello,

Yes, sure, but it really depends on which control you want to use. Is this a control inside a templated column of the grid? Or is it a  custom control inside a particular column type (e.g. dropdown, button)? Or is it an edit control?

So you can get the intance of the row (or better yet) cell of the grid you need using the grid client-side API (CSOM) documented here(in the CSOM part of the help, bottom down)

http://help.infragistics.com/NetAdvantage/NET/2008.2/CLR2.0/

Once you get the row or cell, you can use its Element property to get the actual HTML element (<tr> or <td>) and then the javascript getElementsByTagName or getElementById methods on that element to retrieive elements inside.

You may find the following forum thread and the answer from Vince helpful here:

http://forums.infragistics.com/forums/p/10619/41202.aspx#41202