private void toolStripTaoMoiHoaDonQuanLy_Click(object sender, EventArgs e) { CloseAll(); frmTaoHoaDon frmTaoHoaDon = new frmTaoHoaDon(); frmTaoHoaDon.MdiParent = this; frmTaoHoaDon.Show(); }
private void tạoMớiHóaĐơnToolStripMenuItem_Click(object sender, EventArgs e) { CloseAll(); frmTaoHoaDon frmTaoHoaDon = new frmTaoHoaDon(); frmTaoHoaDon.MdiParent = this; frmTaoHoaDon.Show(); }