private void button5_Click(object sender, EventArgs e) { info i = new info(); this.Visible = false; i.Visible = true; }
private void studentInformationToolStripMenuItem_Click(object sender, EventArgs e) { if (i == null) { i = new info(); i.MdiParent = this; i.FormClosed += i_FormClosed; i.Show(); } else { i.Activate(); } }
void i_FormClosed(object sender, FormClosedEventArgs e) { i = null; }