private void tạoHộiĐồngMớiToolStripMenuItem_Click(object sender, EventArgs e) { TaoHoiDong f = new TaoHoiDong(); f.MdiParent = this; f.Show(); }
private void btnThem_Click(object sender, EventArgs e) { TaoHoiDong f = new TaoHoiDong(); f.MdiParent = this.MdiParent; f.Show(); }