private void label1_Click(object sender, EventArgs e)
{//Principal
Cerrar();
var form = Application.OpenForms.OfType <AC>().FirstOrDefault();
AC hijo = form ?? new AC();
AddFormInPanel(hijo);
}
public Menu()
{
InitializeComponent();
var form = Application.OpenForms.OfType <AC>().FirstOrDefault();
AC hijo = form ?? new AC();
AddFormInPanel(hijo);
}