private void cboMaSp_SelectedIndexChanged(object sender, EventArgs e) { if (cboMaSp.SelectedIndex == -1) { return; } pn.MaSp = int.Parse(cboMaSp.Text); cboTenSp.DataSource = pnbll.HienThiTenSpTheoMaSp(pn); }
private void cboMaSp_SelectedIndexChanged(object sender, EventArgs e) { if (cboMaSp.SelectedIndex == -1) { return; } pn.MaSp = int.Parse(cboMaSp.Text); cboTenSp.DataSource = pnbll.HienThiTenSpTheoMaSp(pn); }