Hello Nathan,

I have been looking into your mail and I assume that by column pinning you mean Fixed Fields. If you would like to allow Fixed Fields I can suggest you look through the following link from our online documentation :

http://help.infragistics.com/NetAdvantage/WPF/2011.2/CLR4.0/?page=xamDataGrid_Enable_Fixed_Fields.html

If I have misunderstood you in any way or you need any further assistance on this matter, do not hesitate to ask.