private void doanhThuBánVéToolStripMenuItem1_Click(object sender, EventArgs e) { frmDoanhThuBanVe dtbv = new frmDoanhThuBanVe(); dtbv.MdiParent = this; dtbv.Show(); }
private void báoCáoDoanhThuToolStripMenuItem_Click(object sender, EventArgs e) { frmDoanhThuBanVe frmDTve = new frmDoanhThuBanVe(); frmDTve.MdiParent = this; frmDTve.Show(); }