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If you would like to display "Previous" and "Next" buttons in the backend forms of your Winter CMS project you can do the following. This trick assumes you are implementing the `FormController` and `ListController` behaviors.

![](/storage/app/media/Screenshot%202024-06-07%20at%2010.13.52%20PM.png)

In your Controller, override the action method you would like to see the buttons in to include the following:

```php
public function preview($id)
    {
        $record = $this->formFindModelObject($id);

// Initialize the ListController
        $this->makeLists();

// Get the position of the current record within the current list set
        $listQuery = $this->listGetWidget()->prepareQuery();
        $totalRecords = $listQuery->count();
        \DB::statement(\DB::raw('set @row_num=0'));
        $listQuery->selectRaw('@row_num:= @row_num + 1 as `record_position`');

$previousId = 0;
        $nextId = 0;
        $currentIndex = null;
				// Note, if you have few records overall but massive sizes per record you can use
				// $listQuery->cursor() to make one DB query per record instead of loading them all at once
        foreach ($listQuery->get() as $listRecord) {
            if ($listRecord->getKey() === $record->getKey()) {
                $currentIndex = $listRecord->record_position;
                continue;
            } elseif ($currentIndex) {
                $nextId = $listRecord->getKey();
                break;
            } else {
                $previousId = $listRecord->getKey();
            }
        }

$this->vars = array_merge($this->vars, [
            'previousUrl'  => $previousId ? Backend::url('myauthor/myplugin/mycontroller/preview/' . $previousId) : '',
            'nextUrl'      => $nextId ? Backend::url('myauthor/myplugin/mycontroller/' . $nextId) : '',
            'currentIndex' => $currentIndex,
            'totalRecords' => $totalRecords,
        ]);

if (!$record->is_read) {
            $record->markRead();
        }

return $this->asExtension('FormController')->preview($id);
    }
```

And then in your action view file (i.e. `preview.htm`), you can include the following:

```php
        <p>
            Record <strong><?= e($currentIndex); ?></strong> of <strong><?= e($totalRecords); ?></strong>. <a href="<?= \Backend::url('myauthor/myplugin/mycontroller/'); ?>">View all</a>
        </p>
        <p>
            <button
                type="button"
                class="btn btn-primary wn-icon-chevron-left"
                onClick="window.location.assign('<?= e($previousUrl); ?>');"
                <?php if (!$previousUrl) : ?>disabled="disabled"<?php endif; ?>
            >Previous</button>
            <button
                type="button"
                class="btn btn-primary wn-icon-chevron-right"
                onClick="window.location.assign('<?= e($nextUrl); ?>');"
                <?php if (!$nextUrl) : ?>disabled="disabled"<?php endif; ?>
            >Next</button>
        </p>
```

This will take into account the currently applied column orders and list filters present on the index page for your controller.

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Backend Plugin Development CMS Twig Themes Deployment