private void button2_Click(object sender, EventArgs e) { available_rooms a = new available_rooms(); this.Visible = false; a.Visible = true; }
private void studentBillToolStripMenuItem_Click(object sender, EventArgs e) { if (avroom == null) { avroom = new available_rooms(); avroom.MdiParent = this; avroom.FormClosed += avroom_FormClosed; avroom.Show(); } else { avroom.Activate(); } }
void avroom_FormClosed(object sender, FormClosedEventArgs e) { avroom = null; }