How to select datatable throught only checkbox flutter?

I am using flutter paginatedDatatable , my row should be selected only through checkbox?

          onSelectAll: (selectAll) {
            setState(() {
              for (var item in userList) {
                setState(() {
                  item['isSelected'] = selectAll;
                });
              }
            });
          },
          showFirstLastButtons: true,
          arrowHeadColor: Colors.green,
          rowsPerPage: defaultPerPage,
          columns: dataColumn,
          source: RowSource(customerList),
        ),