Hi,

Definitely, it's possible.

I suggest you the following:

1.  Go to http://www.infragistics.com/dotnet/netadvantage/wpfdownloads.aspx page ;

2.  Download and install  the  NetAdvantage for WPF 2008 Vol. 1  product ;

3.  Look in NetAdvantage for WPF xamFeatureBrowser ->xamDataGrid->Data Binding and Interaction-> Unbound Fields sample

  Unbound Fields sample gives you an idea how to assign values to cells(or add data to individual cells)  within  a record  through code.

Best Regards,

Yanko