set default value of dropDownList which is a part of dynamic Form

[jainabhishek14]

How to set default Value of dropDownList field I have tried

• set the attribute of Model[0] in controller
• $addressModel->city_id = 4 before the field

$form->field($addressModel, "[{$index}]city_id")->dropDownList(
     ArrayHelper::map(City::find()->all(), 'id', 'name'))

• also

$form->field($addressModel, "[{$index}]city_id")->dropDownList(
      ArrayHelper::map(City::find()->all(), 'id', 'name'), ['options' => [
                    4 => ['Selected' => true],
      ],
])

but nothing works

[sokollondon]

Solution

$(function () {
    $(".dynamicform_wrapper").on("afterInsert", function(e, item) {
        $(item).find("select[id$='-city_id']").val(4);
    });
});