Radios

Provides a form element for a set of radio buttons.

Properties:

  • #options: An associative array, where the keys are the returned values for each radio button, and the values are the labels next to each radio button.

Usage example:

$form['settings']['active'] = array(
  '#type' => 'radios',
  '#title' => $this->t('Poll status'),
  '#default_value' => 1,
  '#options' => array(0 => $this->t('Closed'), 1 => $this->t('Active')),
);

Plugin annotation

@FormElement("radios")

Hierarchy

See also

\Drupal\Core\Render\Element\Checkboxes

\Drupal\Core\Render\Element\Radio

\Drupal\Core\Render\Element\Select

File

core/lib/Drupal/Core/Render/Element/Radios.php, line 31

Namespace

Drupal\Core\Render\Element

Members

Name Modifiers Type Description
CompositeFormElementTrait::preRenderCompositeFormElement public static function Adds form element theming to an element if its title or description is set.
DependencySerializationTrait::$_serviceIds protected property An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep public function
DependencySerializationTrait::__wakeup public function
FormElement::processAutocomplete public static function Adds autocomplete functionality to elements.
FormElement::processPattern public static function #process callback for #pattern form element property.
FormElement::validatePattern public static function #element_validate callback for #pattern form element property.
PluginBase::$configuration protected property Configuration information passed into the plugin.
PluginBase::$pluginDefinition protected property The plugin implementation definition.
PluginBase::$pluginId protected property The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR constant A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId public function Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId public function Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition public function Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition
PluginBase::getPluginId public function Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::__construct public function Constructs a Drupal\Component\Plugin\PluginBase object.
Radios::getInfo public function Returns the element properties for this element. Overrides ElementInterface::getInfo
Radios::processRadios public static function Expands a radios element into individual radio elements.
Radios::valueCallback public static function Determines how user input is mapped to an element's #value property. Overrides FormElement::valueCallback
RenderElement::preRenderAjaxForm public static function Adds Ajax information about an element to communicate with JavaScript.
RenderElement::preRenderGroup public static function Adds members of this group as actual elements for rendering.
RenderElement::processAjaxForm public static function Form element processing handler for the #ajax form property.
RenderElement::processGroup public static function Arranges elements into groups.
RenderElement::setAttributes public static function Sets a form element's class attribute. Overrides ElementInterface::setAttributes
StringTranslationTrait::$stringTranslation protected property The string translation service.
StringTranslationTrait::formatPlural protected function Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals protected function Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation protected function Gets the string translation service.
StringTranslationTrait::setStringTranslation public function Sets the string translation service to use.
StringTranslationTrait::t protected function Translates a string to the current language or to a given language.
doc_Drupal
2016-10-29 09:36:17
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