private void frmSach_Load(object sender, EventArgs e)
{
BUS_GiangHang bus_GH = new BUS_GiangHang();
cboGH.DataSource = bus_GH.getGH();
cboGH.ValueMember = "MaGH";
cboGH.DisplayMember = "TenGH";
dgvSach.DataSource = bus_sach.getSach();
}
public void SetDataGridview()
{
DataGridViewRow dbTempt = dataGridView1.CurrentRow;
dgvcbcSach.DataSource = bus_Sach.getSach();
dgvcbcSach.DisplayMember = "TenSach";
dgvcbcSach.ValueMember = "MaSach";
}