private void CarRequirementMamage_Load(object sender, EventArgs e) { dgvGroupList1.DataSource = groupBLL.FindAllInfo(); dgvWriteDriverList.DataSource = driverWriteListBLL.FindAllInfo(); dgvCarList.DataSource = calBll.FindAllInfo(); dgvManagedInfo.DataSource = manageCarRequiredmentBLL.FindAllInfo(); }