private void tsbtnNhapHang_Click(object sender, EventArgs e) { if (!IsShow("frmNhapHang")) { frmNhapHang nhaphang = new frmNhapHang(); nhaphang.StartPosition = FormStartPosition.CenterScreen; nhaphang.MdiParent = this; nhaphang.Show(); } else { foreach (Form frmNhapHang in this.MdiChildren) { if (frmNhapHang.Name == "frmNhapHang") { frmNhapHang.Activate(); break; } } } }
private void mnuNhapHang_Click(object sender, EventArgs e) { frmNhapHang nhaphang = new frmNhapHang(); nhaphang.ShowDialog(); }