# containsBiometricData method

bool containsBiometricData(

1. BiometricDataType biometricDataType,
2. String? biometricFormat

)

Returns a value indicating whether the field (or one of its child fields) contains biometric data of the specified type and/or format.

param biometricDataType The biometric data type. param biometricFormat The biometric data format. return A value indicating whether the field (or one of its child fields) contains biometric data of the specified type and/or format. throws BiosealException An error has occurred during Bioseal Library execution.

## Implementation

    bool containsBiometricData(BiometricDataType biometricDataType, String? biometricFormat) {
      Pointer<Char>? pBiometricFormat = biometricFormat?.toNativeUtf8().cast<Char>();
      Pointer<Bool> pResult = calloc();
      try {
        var err = biosealSDK.id3BiosealField_ContainsBiometricData(_pHandle.value, biometricDataType.value, pBiometricFormat ?? nullptr, pResult);
        if (err != BiosealError.success.value) {
          throw BiosealException(err);
        }
        final vResult = pResult.value;
        return vResult;
      } finally {
        if (pBiometricFormat != null) {
          calloc.free(pBiometricFormat);
        }
        calloc.free(pResult);
      }
    }