private void LoaiHinh_Click_1(object sender, EventArgs e) { if (LoaiHinhfrm == null || LoaiHinhfrm.IsDisposed) { LoaiHinhfrm = new frmLoaiHinh(); LoaiHinhfrm.MdiParent = this; LoaiHinhfrm.Show(); } else { LoaiHinhfrm.Activate(); } }
private void ThemLoaiHinh_Click(object sender, EventArgs e) { frmLoaiHinh LH = new frmLoaiHinh(); LH.ShowDialog(); }