private void btnViewResult_Click(object sender, EventArgs e)
        {
            MdiChildren.ForEach((a) =>
            {
                a.Close();
            });

            ViewResult addResult = new ViewResult(UserId)
            {
                MdiParent = this,
            };

            addResult.Show();
            if (ActiveMdiChild != null)
            {
                ActiveMdiChild.WindowState = FormWindowState.Maximized;
            }
        }
        private void ShowDashboard()
        {
            MdiChildren.ForEach((a) =>
            {
                a.Close();
            });

            Dashboard dashboard = new Dashboard(UserId)
            {
                MdiParent = this
            };

            dashboard.Show();
            if (ActiveMdiChild != null)
            {
                ActiveMdiChild.WindowState = FormWindowState.Maximized;
            }
        }