private void listaDeRazasToolStripMenuItem_Click(object sender, EventArgs e) { if (listaraza == null) { listaraza = new frmListaRazas(); listaraza.MdiParent = this; listaraza.FormClosed += new FormClosedEventHandler(listaRaza_FormClosed); listaraza.Show(); } }
void listaRaza_FormClosed(object sender, EventArgs e) { listaraza = null; }