private void racuniToolStripMenuItem_Click(object sender, EventArgs e) { if (racuni == null) { racuni = new Racuni(); racuni.FormClosed += rac_FormClosed; racuni.MdiParent = this; racuni.Show(); racuni.WindowState = FormWindowState.Maximized; } else { racuni.Show(); racuni.WindowState = FormWindowState.Maximized; } }
void rac_FormClosed(object sender, FormClosedEventArgs e) { racuni = null; //throw new NotImplementedException(); }