private void toolStripButton2_Click(object sender, EventArgs e) { formNQL_QLTro fm = new formNQL_QLTro(); fm.MdiParent = this; fm.Show(); }
private void danhSáchNQLToolStripMenuItem_Click(object sender, EventArgs e) { formNQL_QLTro fm = new formNQL_QLTro(); fm.MdiParent = this; fm.Show(); }