Problem on https://docs.typo3.org/m/typo3/reference-coreapi/main/en-us//ApiOverview/Backend/BackendModules/DocHeaderComponent.html

[metapublic-gbr]

This example given on this page is incomplete:

---

Usage in a controller:

public function __construct(
protected readonly ComponentFactory $componentFactory,
) }

public function myAction(): ResponseInterface
{
$view = $this->moduleTemplateFactory->create($request);
$docHeader = $view->getDocHeaderComponent();

// Set breadcrumb for a page
$docHeader->setPageBreadcrumb($pageInfo);

// Add action buttons using ComponentFactory
$buttonBar = $docHeader->getButtonBar();
$saveButton = $this->componentFactory->createSaveButton('editform');
$buttonBar->addButton($saveButton, ButtonBar::BUTTON_POSITION_LEFT, 1);

}

---

Problem 1: "ComponentFactory" is not found in TYPO3 13
Problem 2: "$pageInfo" is not defined.

Like this, the example is not helpful.
Unfortunately, I don't know the matter, so I can propose a better solution.

[garvinhicking]

This documentation in "main" is for TYPO3 v14. If you switch versions to v13 you will not see this code.

$pageInfo is a placeholder for your own array of input data. I agree we can do better to indicate this. Thanks for the report!