private void SetDept()
        {
            decimal?stafftype = StaffBiz.GetStaffType(HttpContext.Current.User.Identity.Name);

            if (stafftype != null)
            {
                if (stafftype == COCConstant.StaffType.ITAdministrator)
                {
                    cmbDepartment.Enabled = true;
                }
                else
                {
                    cmbDepartment.Enabled = false;
                    int?dept = StaffBiz.GetDepartmentId(HttpContext.Current.User.Identity.Name);
                    if (dept != null)
                    {
                        cmbDepartment.SelectedIndex = cmbDepartment.Items.IndexOf(cmbDepartment.Items.FindByValue(dept.ToString()));
                    }
                }
            }
        }