>Only 1 method has code in it.
>
>afterrowcolchange method
>
>LPARAMETERS nColIndex
>IF NOT DODEFAULT()
> RETURN .F.
>ENDIF
>thisform.populate_detail()
>
>If I do set step and debug it, when the afterrowcolchange event fires after I have selected a different row in the grid, the value for the 1st field in
>the grid still contains the original row information, not the new selected row information.

First of all, pass nColIndex into dodefault call.
What is in Populate_Detail method and do you have some code in the parent class for the grid?