pajax

pjax网址：https://libraries.io/bower/yii2-pjax

1. 连接指定的div，实行pjax ，利用 linkSelector 方法
<div id="categories">
    <?php foreach ($tree as $id => $name): ?>
        <?php echo Html::a(
                $name,
                ['update', 'id'=>$id],
                ['data-pjax'=> '#formsection']) ?>
    <?php endforeach ?>
</div>
<?php Pjax::begin(['id'=>'formsection', 'linkSelector'=>'#categories a']); ?>
<?php Pjax::end(); ?>

2. 刷新GridView 

Pjax::begin(['id' => 'pjax-group', 'timeout' => false, 'enablePushState' => false, 'clientOptions' => ['method' => 'POST']]);

javascript:   $.pjax.reload({container:'#pjax-group'});

3.  pjax 发送前和发送后控制

$(document).on('pjax:send', function() {
  $('#loading').show()
})
$(document).on('pjax:complete', function() {
  $('#loading').hide()
})