private void frmCapNhatNXB_Load(object sender, EventArgs e)
{
NhaXuatBanDTO nxb = nxbBUS.LayNhaXuatBanTheoMa(manxb);
txtMaNXB.Text = manxb.ToString();
txtTen.Text = nxb.Ten;
txtWebsite.Text = nxb.Website;
txtEmail.Text = nxb.Email;
txtGhiChu.Text = nxb.GhiChu;
}