private void frmSanPham_Load(object sender, EventArgs e)
{
GridSP.DataSource = sanphamBUS.GetSanPham();
cboMaLSP.DataSource = loaisanphamBUS.GetLoaiSP();
cboMaLSP.DisplayMember = "TenLoaiSanPham";
cboMaLSP.ValueMember = "MaLoaiSanPham";
}
private void frmLoaiSanPham_Load(object sender, EventArgs e)
{
GridLoaiSP.DataSource = loaisanphamBUS.GetLoaiSP();
}