DataColumn 增加了width 和 align

kcadmin/views/category/index.php

@@ -18,14 +18,23 @@ $this->params['breadcrumbs'][] = $this->title;
         <?php
         echo GridView::widget([
             'dataProvider' => $dataProvider,
-            'filterSelector' => 'select[name="per-page"]',
             'columns' => [
-                'id',
-                'cat_name',
+                [
+                    'attribute' => 'id',
+                    'label' => 'Id',
+                    "width" => "30px",
+                    'align' => 'center'
+                ],
+                [
+                    'attribute' => 'cat_name',
+                    'label' => '类名'
+                ],
                 'icon',
                 'icon_type',
                 'description:ntext',
-                ['class' => 'yii\grid\ActionColumn'],
+                [
+                    'class' => 'yii\grid\ActionColumn',
+                ],
             ],
         ]);
         ?>