urgent..in a row there are 9 checkboxes and if 1st one is checked then the last one must be checked

Hi Iam in an urgent need of this problem i..e in my grid i had a row which consists of nine checkboxes and if i check the first checkbox then the last one must be checked and if i apply any property for this it is reflecting for the entire column so plz guide me

hi guys can anyone suggest me any solutions for the above
i am using explicitly getting/setting col and row numbers if it is true i am setting false but getCellValue is working but setCellValue function is not working pls help me

checkEnforcer = "true";
obj.setCellValue(checkEnforcer,7, 1);

refreshing row or cell?


obj.getRowTemplate(row_indice).getItemTemplate(col_indice).refresh()

checkEnforcer=true
and not "true"