private void frm_MatHang_ThemMatHang_Load(object sender, EventArgs e)
{
cb_LMH.DataSource = null;
cb_LMH.Items.Clear();
cb_LMH.DataSource = lmh.GetLoaiMatHang();
cb_LMH.ValueMember = "MaLoaiMatHang";
cb_LMH.DisplayMember = "TenLoaiMatHang";
cb_NCC.DataSource = null;
cb_NCC.Items.Clear();
cb_NCC.DataSource = ncc.GetNhaCungCap();
cb_NCC.ValueMember = "MaNhaCC";
cb_NCC.DisplayMember = "TenNhaCC";
loadCB();
}
private void refress()
{
gc_NCC.DataSource = ncc.GetNhaCungCap();
}