Gridview gridwidget yii2中的链接包装

当链接对于响应性演示文稿来说太长时，我如何用Html:：a（$modeld->taguung_-bez）包装它呢。我希望有相同的bahavior-like表数据

<?= GridView::widget([
        'dataProvider' => $dataProvider,
        'columns' => [
            ['class' => 'yii\grid\SerialColumn'] , 
            [ 'attribute' => 'tagung_kurz_bez',
                'format' => 'raw',
                'value' => function($model){
                    **return Html::a($model->tagung_bez, 
                    Url::to(['tagungen/view', 'id' => $model->id]));**

                }
            ],
           ],
    ]); ?>