yii2的GridView和ActiveDataProvider具体使用

1.控制器中(以User模块的列表为例)：

第一步：

use backend\models\User;use yii\data\ActiveDataProvider;

第二步：

public function actionIndex(){   $model=new User();    $dataProvider = new ActiveDataProvider([        ‘query‘ => User::find()->orderBy(‘id‘),    ]);    return $this->render(‘index‘, [        ‘model‘ => $model,        ‘dataProvider‘ => $dataProvider,    ]);}

2.view文件中：

第一步：

use yii\helpers\Html;use yii\grid\GridView;use backend\models\User;

第二步：

<?=GridView::widget([    ‘dataProvider‘ => $dataProvider,    ‘columns‘ => [        ‘id‘,        [            ‘attribute‘ => ‘username‘,            ‘content‘ => function($dataProvider){                return $dataProvider[‘username‘];            },        ],        ‘email:email‘,        [            ‘attribute‘ => ‘created_at‘,            ‘format‘ =>  [‘date‘, ‘php:Y-m-d H:i:s‘],        ],        [            ‘class‘ => ‘yii\grid\ActionColumn‘,            ‘header‘ => ‘操作‘,            ‘template‘ => ‘{view}{update}{password}{delete}‘,            ‘headerOptions‘ => [‘width‘ => ‘128‘, ‘class‘ => ‘padding-left-5px‘,],            ‘contentOptions‘ => [‘class‘ => ‘padding-left-5px‘],            ‘buttons‘ => [                ‘password‘ => function ($url, $model, $key) {                    return Html::a(‘<span class="glyphicon glyphicon-edit"></span>‘, $url, [                        ‘title‘ => ‘修改密码‘,                        ‘data-method‘ => ‘post‘,                        ‘data-pjax‘ => ‘0‘,                    ]);                },            ],        ],    ],]); ?>3.运行效果如下图：