private void userToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            Frm_UserView childform = new Frm_UserView();

            childform.MdiParent = this;
            childform.Show();
        }
        private void btn_view_Click(object sender, EventArgs e)
        {
            Frm_UserView fview = new Frm_UserView();

            fview.ShowDialog();
        }
        private void metroTile4_Click(object sender, EventArgs e)
        {
            Frm_UserView userView = new Frm_UserView();

            userView.ShowDialog();
        }