private void gerirUtilizadoresToolStripMenuItem_Click(object sender, EventArgs e) { if (users == null) { users = new FrmUsers(); users.MdiParent = this; users.Dock = DockStyle.Fill; users.FormClosed += Users_FormClosed; users.Show(); } else { users.Activate(); } }
private void Users_FormClosed(object sender, FormClosedEventArgs e) { users = null; }