.. index:: 
  !Field.containsBiometricData Method
  
.. _id3_bioseal_field_contains_biometric_data_class_method:

===============================================================================
Field.containsBiometricData Method
===============================================================================

Module: :ref:`Field<id3_bioseal_field_class>`

Definition
----------

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


.. code:: Dart

    bool containsBiometricData(BiometricDataType biometricDataType, String? biometricFormat)

**Parameters**

.. line-block::

    ``biometricDataType`` :ref:`BiometricDataType<id3_bioseal_biometric_data_type_enum>`
    :guilabel:`in` The biometric data type.

    ``biometricFormat`` String
    :guilabel:`in` The biometric data format.


**Returns**

.. line-block::

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

**Exceptions**

.. line-block::

    :ref:`BiosealException<id3_bioseal_bioseal_exception>`
    An error has occurred during Bioseal Library execution.



