antshop/backend/views/taking-site/_form.php

<?php

use yii\bootstrap4\Html;
use yii\bootstrap4\ActiveForm;
use blobt\widgets\Icheck;
use kartik\depdrop\DepDrop;
use backend\models\ars\Province;
use yii\helpers\ArrayHelper;
use yii\helpers\Url;

/* @var $this yii\web\View */
/* @var $model backend\models\ars\TakingSite */
/* @var $form yii\widgets\ActiveForm */
$provinces = Province::find()->select('province_id as id,name')->asArray()->all();
$data = ArrayHelper::map($provinces, 'id', 'name');
Yii::$app->params['bsVersion'] = '4.x';
?>

<div class="taking-site-form">

    <?php $form = ActiveForm::begin(); ?>

    <?= $form->field($model, 'name')->textInput(['maxlength' => true]) ?>

    <div class="row">
        <div class="col-lg-4">
            <?= $form->field($model, 'province')->dropDownList($data, ['id' => 'province-id', 'prompt' => '请选择']); ?>
        </div>
        <div class="col-lg-4">
            <?= $form->field($model, 'city')->widget(DepDrop::classname(), [
                'options' => ['id' => 'city-id', 'prompt' => $model->city],
                'data' => $cityList,
                'pluginOptions' => [
                    'depends' => ['province-id'],
                    'placeholder' => '请选择成市',
                    'url' => Url::to(['/taking-site/city'])
                ],
                'pluginEvents' => [
                    "depdrop：change" => "function(event, id, value, count) { log(id); log(value); log(count); }",
                ]

            ]) ?>
        </div>
        <div class="col-lg-4">
            <?= $form->field($model, 'area')->widget(DepDrop::classname(), [
                'options' => ['prompt' => $model->area],
                'data' => $areaList,
                'pluginOptions' => [
                    'depends' => ['city-id'],
                    'placeholder' => '请选择县区',
                    'url' => Url::to(['/taking-site/area'])

                ]
            ]) ?>
        </div>
    </div>

    <?= $form->field($model, 'address')->textarea(['rows' => 2]) ?>

    <div class="form-group">
        <?= Html::submitButton('保存', ['class' => 'btn btn-success']) ?>
        <?= Html::a('返回', ['index'], ['class' => 'btn btn-info']) ?>
    </div>

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

</div>