Code removing the wrong cells - how do I get the value of a cell in GridView

Hi I'm trying to add rowspan to the first cell in a group and then removing the subsequent cells but my code seems to be removing the wrong cells (e.g gvr.Cells.RemoveAt(0);).  How can I get the value of a cell in the following code so I can determine which cells are actually being removed??

foreach (GridViewRow gvr in gvWeeksCatches.Rows)
        {
            gvRowIndex = gvr.RowIndex;
            if (gvRowIndex == firstSpanRow)
            {
                gvr.Cells[0].RowSpan = numSpanRows;
                gvr.Cells[1].RowSpan = numSpanRows;
            }
            //if row is in rowspan group
            else if (gvRowIndex > firstSpanRow && gvRowIndex <= lastSpanRow)
            {
                gvr.Cells.RemoveAt(0);
                gvr.Cells.RemoveAt(1);
               
            }
            gvRowIndex++;

        }