在Yii2中哪里可以找到查看、编辑、删除按钮的位置？

<?= GridView::widget([
    'dataProvider' => $dataProvider,
    'columns' => [
        // 其他列...
        [
            'class' => 'yii\grid\ActionColumn',
            'template' => '{view}', // 只显示查看按钮
            'buttons' => [
                'view' => function ($url, $model, $key) {
                    return Html::a('查看', ['view', 'id' => $model->id]);
                },
            ],
        ],
    ],
]); ?>

<?= DetailView::widget([
    'model' => $model,
    'attributes' => [
        // 其他属性...
    ],
]) ?>

<?= Html::a('编辑', ['update', 'id' => $model->id], ['class' => 'btn btn-primary']) ?>

<?php $form = ActiveForm::begin(['action' => ['delete', 'id' => $model->id], 'method' => 'post']) ?>
    <?= Html::submitButton('删除', ['class' => 'btn btn-danger']) ?>
<?php ActiveForm::end() ?>