init() public method Initializes the widget. If you override this method, make sure you call the parent implementation first. public void init ( )

$submenuOptions public property (available since version 2.0.5) The HTML attributes for sub-menu container tags. If not set - $options value will be used for it. public array|null $submenuOptions = null

$items public property List of menu items in the dropdown. Each array element can be either an HTML string, or an array representing a single menu with the following structure: label: string, required, the label of the item link. encode: boolean, optional, whether to HTML-ecnode item label. url: string|array, optional, the url of the item link. This will be processed by \yii\bootstrap\Url::to(). If not set, the item will be treated as a menu header when the item has no sub-menu. visible: bo

$encodeLabels public property Whether the labels for header items should be HTML-encoded. public boolean $encodeLabels = true

run() public method Renders the widget. public void run ( )

renderItems() public method Renders collapsible items as specified on $items. public string renderItems ( )return string The rendering result throws yii\base\InvalidConfigException if label isn't specified

renderItem() public method Renders a single collapsible item group public string renderItem ( $header, $item, $index )$header string A label of the item group $items $item array A single item from $items $index integer The item index as each item group content must have an id return string The rendering result throws yii\base\InvalidConfigException

init() public method Initializes the widget. public void init ( )

$items public property List of groups in the collapse widget. Each array element represents a single group with the following structure: label: string, required, the group header label. encode: boolean, optional, whether this label should be HTML-encoded. This param will override global $this->encodeLabels param. content: array|string|object, required, the content (HTML) of the group options: array, optional, the HTML attributes of the group contentOptions: optional, the HTML attributes

$encodeLabels public property Whether the labels for header items should be HTML-encoded. public boolean $encodeLabels = true