public void LoadData()
{
dt1 = new DataTable();
dt1 = HeSoLuongCtrl.GetData();
dgvHeSoLuong.DataSource = dt1;
txtBacLuong.Enabled = false;
txtLuongCB.Enabled = false;
txtLuongtangca.Enabled = false;
txtTimKiem.Enabled = true;
btnHuy.Enabled = false;
btnLuu.Enabled = false;
btnThem.Enabled = true;
btnSua.Enabled = true;
btnXoa.Enabled = true;
}
public void LoadDataLuong()
{
cmbBacLuong.DataSource = HeSoLuongCtrl.GetData();
cmbBacLuong.ValueMember = "BacLuong";
cmbBacLuong.DisplayMember = "BacLuong";
}