Adds Ajax information about an element to communicate with JavaScript.

If #ajax is set on an element, this additional JavaScript is added to the page header to attach the Ajax behaviors. See ajax.js for more information.

Parameters

array $element: An associative array containing the properties of the element. Properties used:

• #ajax['event']
• #ajax['prevent']
• #ajax['url']
• #ajax['httpMethod']
• #ajax['callback']
• #ajax['options']
• #ajax['wrapper']
• #ajax['parameters']
• #ajax['effect']
• #ajax['accepts']

Return value

array The processed element with the necessary JavaScript attached to it.

Overrides RenderElementBase::preRenderAjaxForm

File

core/lib/Drupal/Core/Render/Element/RenderElement.php, line 52

Class

RenderElement

Provides a base class for render element plugins.

Namespace

Drupal\Core\Render\Element

Code

public static function preRenderAjaxForm($element) {
  @trigger_error('\\Drupal\\Core\\Render\\Element\\RenderElement::preRenderAjaxForm() is deprecated in drupal:10.3.0 and is removed from drupal:12.0.0. Use \\Drupal\\Core\\Render\\Element\\RenderElementBase::preRenderAjaxForm() instead. See https://www.drupal.org/node/3436275', E_USER_DEPRECATED);
  return parent::preRenderAjaxForm($element);
}

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