Hello -- I'm using the XamDataGrid, and I need to do a custom sort based on a property from the DataRecord.DataItem, not just the cellValue of the column I'm sorting on. Is there a way to access or pass the DataRecord to IComparer?

column1 column2 column3 prop1 ---- record 1

column1 column2 column3 prop1 ---- record 2

...

column1 column2 column3 prop1 ---- record n

I would like to custom sort on column 2 (when column 2 is grouped) using the value of prop1.  Thanks!