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Name Type Location Description
views_exposed_form.test file core/modules/views/tests/views_exposed_form.test Definition of ViewsExposedFormTest.
BlockHero::formValidate function core/modules/layout/includes/block.hero.inc Validates the form settings.
field_ui_view_mode_form function core/modules/field_ui/field_ui.admin.inc Form builder: Add or edit a display mode name.
form_test_state_persist function core/modules/simpletest/tests/form_test.module Form constructor for testing form state persistence.
form_test_two_instances function core/modules/simpletest/tests/form_test.module Menu callback that returns two instances of the node form.
LayoutStyle::formSubmit function core/modules/layout/plugins/styles/layout_style_default.inc Submit handler for saving the form settings.
simpletest_example_form function modules/examples/simpletest_example/simpletest_example.module Implements hook_form().
views_ui_build_form_url function core/modules/views_ui/views_ui.admin.inc Backwards compatible wrapper function for views_ui_build_form_path().
locale_date_format_form function core/modules/locale/locale.admin.inc Form callback; Display fields for setting the date format for each language.
form_type_options_value function core/modules/field/modules/options/options.module This function adjusts the value of the element from a text value to an array.
FrontLayoutAccess::form function core/modules/layout/plugins/access/front_layout_access.inc Settings form for configuring this access item.
_form_options_from_text function core/modules/field/modules/options/options.element.inc Logic function for form_options_from_text(). Do not call directly.
ckeditor5_settings_form function core/modules/ckeditor5/ckeditor5.admin.inc Editor settings callback; Provide options for CKEditor 5 module.
_book_add_form_elements function core/modules/book/book.module Builds the common elements of the book form for the node and outline forms.
BlockLegacy::formSubmit function core/modules/layout/includes/block_legacy.class.inc Submit handler to save the form settings.
form_example_states.inc file modules/examples/form_example/form_example_states.inc An example of how to use the new #states Form API element, allowing dynamic form behavior with very simple setup.
form_example_wizard.inc file modules/examples/form_example/form_example_wizard.inc Extensible wizard form example.
file_manage_form_submit function core/modules/file/file.pages.inc Form submission handler for the 'Save' button for file_manage_form().
views_ajax_form_wrapper function core/modules/views/includes/ajax.inc Wrapper around backdrop_build_form to handle some AJAX stuff automatically. This makes some assumptions about the client.
layout_ajax_form_update function core/modules/layout/layout.admin.inc AJAX handler that updates a portion of the form.
book_remove_form_submit function core/modules/book/book.pages.inc Form submission handler for book_remove_form().
block_custom_block_form function core/modules/block/block.module Form constructor for the custom block form.
_get_custom_date_format function core/modules/date/date.module Get a custom date format.
image_style_form_submit function core/modules/image/image.admin.inc Submit handler for saving an image style.
image_style_delete_form function core/modules/image/image.admin.inc Form builder; Form for deleting an image style.
date_format_type_format function core/modules/date/date.module Helper function to get the right date format for a format type.
form_example_tutorial_1 function modules/examples/form_example/form_example_tutorial.inc This is Example 1, a very basic form with a textfield.
image_style_revert_form function core/modules/image/image.admin.inc Confirmation form to revert a database style to its default.
form_example_tutorial_2 function modules/examples/form_example/form_example_tutorial.inc This is Example 2, a basic form with a submit button.
form_example_tutorial_3 function modules/examples/form_example/form_example_tutorial.inc This is Example 3: a basic form with fieldsets.
form_example_tutorial_4 function modules/examples/form_example/form_example_tutorial.inc This is Example 4: a basic form with required fields.
form_example_tutorial_5 function modules/examples/form_example/form_example_tutorial.inc This is Example 5: a basic form with additional element attributes.
_install_configure_form function core/includes/install.core.inc Form constructor for a site configuration form.
form_example_tutorial_6 function modules/examples/form_example/form_example_tutorial.inc This is Example 6: a basic form with a validate handler.
layout_context_add_form function core/modules/layout/layout.context.admin.inc Form callback; Displays form for adding new contexts to a layout.
form_example_tutorial_7 function modules/examples/form_example/form_example_tutorial.inc This is Example 7: a form with a submission handler.
form_example_tutorial_8 function modules/examples/form_example/form_example_tutorial.inc This is Example 8: a simple multistep form with a Next and a Back buttons.
DiffFormatter::endBlock function core/includes/diff.inc
form_example_tutorial_9 function modules/examples/form_example/form_example_tutorial.inc This is Example 9: a form with new fields dynamically added.
batch_test_chained_form function core/modules/simpletest/tests/batch_test.module Form with chained submit callbacks.
file_type_form_validate function core/modules/file/file.admin.inc Form validation handler for file_file_type_form().
form_state_values_clean function core/includes/form.inc Removes internal Form API elements and buttons from submitted form values.
language_admin_add_form function core/modules/language/language.admin.inc User interface for the language addition screen.
hook_form_FORM_ID_alter function core/modules/system/system.api.php Provide a form-specific alteration instead of the global hook_form_alter().
BlockText::formValidate function core/modules/layout/includes/block.text.inc Validates the form settings.
form_example.tests.info file modules/examples/form_example/tests/form_example.tests.info [FormExampleTestCase] name = Form example functionality description = Tests form functionality. group = Example modules file = form_example.test
image_field_widget_form function core/modules/image/image.field.inc Implements hook_field_widget_form().
form_process_checkboxes function core/includes/form.inc Processes a checkboxes form element.
node_type_form_validate function core/modules/node/node.types.inc Form validation handler for node_type_form().
system_get_date_formats function core/modules/system/system.module Gets the list of defined date formats and attributes.

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