.. index:: 
  !Bioseal.findFieldsByExtension Method
  
.. _id3_bioseal_bioseal_find_fields_by_extension_class_method:

===============================================================================
Bioseal.findFieldsByExtension Method
===============================================================================

Module: :ref:`Bioseal<id3_bioseal_bioseal_class>`

Definition
----------

Finds fields by extension type.


.. code:: Dart

    FieldList findFieldsByExtension(FieldExtensionType fieldExtensionType)

**Parameters**

.. line-block::

    ``fieldExtensionType`` :ref:`FieldExtensionType<id3_bioseal_field_extension_type_enum>`
    :guilabel:`in` The field extension type.


**Returns**

.. line-block::

    :ref:`FieldList<id3_bioseal_field_list_class>`
    The list of fields with the extension.

**Exceptions**

.. line-block::

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



