PHP

yii2 gridview filter exact value

$query->andFilterWhere(['=', 'email', $this->email]);   // exact match
$query->andFilterWhere(['like', 'username', $this->username]);

yii2 gridview get selected rows

// For getting selected rows via jQuery
$('#your-grid-id').yiiGridView('getSelectedRows');

yii2 gridview select column

<?=Html::beginForm(['controller/bulk'],'post');?>

<?=Html::dropDownList('action','',[''=>'Mark selected as: ','c'=>'Confirmed','nc'=>'No Confirmed'],['class'=>'dropdown',])?>

<?=Html::submitButton('Send', ['class' => 'btn btn-info',]);?>

<?=GridView::widget([
    'dataProvider' => $dataProvider,
    'columns' => [
       ['class' => 'yiigridCheckboxColumn'],
        ...
     ],
  ]); ?>

<?= Html::endForm();?> 

Yii2 GridView options for table

<?= GridView::widget([
    'dataProvider' => $dataProvider,
    'summaryOptions' => ['class' =>'dfenx_pagination_summary',],
    'pager' => ['options' => ['class'=> 'pagination pull-right']],
    'filterModel' => $searchModel,
    'tableOptions' => [
	    'class' => 'small',
	],
    'columns' => [
        ['class' => 'yiigridSerialColumn'],
        //'tipo',
        [
        	'attribute' => 'your_Attribute',
            'label' => 'your_label',
            'headerOptions' => ['class'=>'big-border',],
        ],
        ......
        
?>