private void btnAdd_Click(object sender, EventArgs e)
{
NhapSanPham_Form nhapSanPham = new NhapSanPham_Form();
nhapSanPham.ShowDialog();
}
private void barButtonItem3_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
Report.NhapSanPham_Form nhapSanPham_frm = new Report.NhapSanPham_Form();
nhapSanPham_frm.ShowDialog();
}