private void Button_subQLSP_QLSP_Click(object sender, EventArgs e)
{
FormSanPham f = new FormSanPham("nhanvien");
openChildform(f);
}
private void Button_subQLSPsub_show_Click(object sender, EventArgs e)
{
FormSanPham f = new FormSanPham("admin");
openChildform(f);
}