GridView control - getting the datafield name in a BoundField control

[mz]

In the GridView_RowCommand event I'm trying to iterate over all the cells
and get the datafield assigned to the cell if the cell is a BoundField. I've
looked at all the properties in the GridView, GridViewColumns, GridViewRows,
and GridViewRows.Cells object and can't find it. If I drill down far enough
in the QuickWatch screen

i.e. GridViewRow.cells(5)
System.Web.UI.WebControls.DataControlFieldCell.ContainingField
System.Web.UI.WebControls.BoundField.DataField

I do see the datafiled name, but I can't seem to get there programmatically.

Any help would be appreciated.

Thanks,

Mark Zeiger