private void btnCadUsu_Click(object sender, RoutedEventArgs e)
 {
     //Instancia do form frmCadUsu
     frmCadUsu CadUsu = new frmCadUsu();
     //mostra o form frmCadUsu e fecha esse
     CadUsu.Show();
     this.Close();
 }
        private void btnCadUsu_Click(object sender, RoutedEventArgs e)
        {
            //Instancia do form frmCadUsu
            frmCadUsu CadUsu = new frmCadUsu();

            //mostra o form frmCadUsu e fecha esse
            CadUsu.Show();
            this.Close();
        }