if(gridView[iTabNo].GetFocusedRowCellValue("컬럼명").ToString().Trim() == "")
{
gridView[iTabNo].SetFocusedRowCellValue("컬럼명", 삽입할 값);
}
if(gridView[iTabNo].GetFocusedRowCellValue("컬럼명").ToString().Trim() == "")
{
gridView[iTabNo].SetFocusedRowCellValue("컬럼명", 삽입할 값);
}