private void LimparFormulario()
 {
     TxtMarca.Clear();
     txtModelo.Clear();
     CmbTipoVeiculo.SelectedIndex = -1;
     TxtPlaca.Clear();
     TxtAno.Clear();
     TxtRenavan.Clear();
     TxtPortas.Clear();
     CmbTipoCombustivel.SelectedIndex = -1;
     TxtPotencia.Clear();
     TxtCor.Clear();
     TxtStatus.Clear();
     TxtPlaca.Focus();
 }
 private void btnCancelarCadastroVeiculo(object sender, RoutedEventArgs e)
 {
     TxtMarca.Clear();
     txtModelo.Clear();
     CmbTipoVeiculo.SelectedIndex = -1;
     TxtPlaca.Clear();
     TxtAno.Clear();
     TxtRenavan.Clear();
     TxtPortas.Clear();
     CmbTipoCombustivel.SelectedIndex = -1;
     TxtPotencia.Clear();
     TxtCor.Clear();
     TxtStatus.Clear();
     TxtPlaca.Focus();
 }