Yii2 GridPageSize

GridPageSize.php

<?= GridPageSize::widget(['pjaxId'=>'myAwesomeGridViewContainer']) ?>


<?php 
Pjax::begin([
	'id'=>'myAwesomeGridViewContainer',
]) 
?>
<?= 
	GridView::widget([
		'id'=>'theGrid',
		'dataProvider' => $dataProvider,
		'filterModel' => $searchModel,

		'columns' => [
			['class' => 'yii\grid\SerialColumn'],
			'username',
			'password',
		],
	]); 
?>
<?php Pjax::end() ?>