private void addUserMenuItem_Click(object sender, EventArgs e)
        {
            Form childForm = new UMForm();

            childForm.MdiParent = this;
            childForm.Show();
            childForm.Activate();
        }
        private void addUserMenuItem_Click(object sender, EventArgs e)
        {
            Form childForm = new UMForm();

            childForm.MdiParent = this;
            childForm.Show();
            childForm.Activate();
        }