Yii2 Pjax not working

Question

I want to refresh the gridview using Pjax but somehow it is not working. Here is the code:

_search.php

    <?php

use yii\helpers\Html;
use yii\widgets\ActiveForm;
use yii\widgets\Pjax;

$this->registerJs("
                  $('#btnAjaxSearch').click(function(){
                        $.ajax({
                                type: 'get',
                                data: $('.bank-search form').serializeArray(),
                                success: function (data) {
                                      $.pjax.reload({container:\"#bank\"});
                                },
                                error: function (XMLHttpRequest, textStatus, errorThrown) {
                                      alert('error');
                                }
                        });
                       return false;
                  });
                ", \yii\web\View::POS_END, 'bank-search');
?>

<div class="bank-search">
    <?php Pjax::begin(['id' => 'bank-form']); ?>
    <?php $form = ActiveForm::begin([
        'action' => ['index'],
        'method' => 'get',
    ]); ?>

    <?= $form->field($model, 'bank_name') ?>

    <?= $form->field($model, 'state') ?>

    <?= $form->field($model, 'district') ?>

    <?= $form->field($model, 'city') ?>

    <div class="form-group">
        <?= Html::Button('Search', ['class' => 'btn btn-primary','id' => 'btnAjaxSearch']) ?>
    </div>

    <?php ActiveForm::end(); ?>
    <?php Pjax::end(); ?>

</div>

index.php

    <?php

use yii\helpers\Html;
use yii\grid\GridView;
use yii\widgets\Pjax; 

$this->title = 'Banks';
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="bank-index">

    <h1><?= Html::encode($this->title) ?></h1>
    <?php  echo $this->render('_search', ['model' => $searchModel]); ?>

    <p>
        <?= Html::a('Create Bank', ['create'], ['class' => 'btn btn-success']) ?>
    </p>
    <?php Pjax::begin(['id' => 'bank']); ?>
    <?= GridView::widget([
        'dataProvider' => $dataProvider,
        'filterModel' => $searchModel,
        'columns' => [
            ['class' => 'yii\grid\SerialColumn'],

            'id',
            'bank_name',
            'state',
            'district',
            'city',
            // 'branch',

            ['class' => 'yii\grid\ActionColumn'],
        ],
    ]); ?>
    <?php Pjax::end(); ?>
</div>

Controller

 /**
     * Lists all Bank models.
     * @return mixed
     */
    public function actionIndex()
    {
        $searchModel = new BankSearch();
        $dataProvider = $searchModel->search(Yii::$app->request->queryParams);

        return $this->render('index', [
            'searchModel' => $searchModel,
            'dataProvider' => $dataProvider,
        ]);
    }

Simple search is working but Pjax is not. I am new to Yii2 so any help would be appreciated. Thank you.

Answer 1

Thanks Edin. It helped me to solved the problem. Here is what I did. It might help someone facing the same problem.

As Edin mentioned you need to pass the url along with the search parameters to the Pjax in order to refresh the gridview.

Here's my edited code :

    $js = <<<JS
        // get the form id and set the event
        $('#bank-form-id').on('beforeSubmit', function(e) { 
           var form = $(this);
            if(form.find('.has-error').length) {
                return false;
            }
            $.ajax({
                url: form.attr('action'),
                type: 'post',
                data: form.serialize(),
                success: function(response) { 
                    var csrf = yii.getCsrfToken();
                    var bank_name = $('#banksearch-bank_name').val();
                    var state = $('#banksearch-state').val();
                    var district = $('#banksearch-district').val();
                    var city = $('#banksearch-city').val();
                    var url = form.attr('action')+ '&_csrf='+csrf+'&BankSearch[bank_name]='+bank_name+'&BankSearch[state]='+state+'&BankSearch[district]='+district+'&BankSearch[city]='+city;
                    $.pjax.reload({url: url, container:'#bank'});
                }
            });    
        }).on('submit', function(e){
        e.preventDefault();
    });
JS;
$this->registerJs($js);