private void sintomasToolStripMenuItem_Click(object sender, EventArgs e) { if (Sintomas.DefInstance == null) { Sintomas s = new Sintomas(); s.MdiParent = this; Sintomas.DefInstance = s; s.Show(); } else { Sintomas.DefInstance.Show(); } }
private void Sintomas_FormClosing(object sender, FormClosingEventArgs e) { defInstance = null; }