Unable to post the data from view to controller in Yii2

Question

I am working on Yii2. I have a gridview with checkbox and on a button click I am redirecting it to an action controller using ajax.

Answer 1

First, if you're serving an Ajax request you cannot do a redirect:

public function actionDco()
{
    Yii::$app->response->format = Response::FORMAT_JSON;
    $rv=[];
    if(Yii::$app->request->isAjax && Yii::$app->request->post())
    {
        $data = explode(',',$_POST['data']);

        $rv["infos"]=$data;
        $rv["status"]='gotData';
    }
    else{
        $rv["url"]=Url::to('index');
        $rv["status"]='redirect';

    }
    return $rv;
}

About the JS error, instead of:

$.ajax({
    url: $DCOurl,
    type: 'POST',
    dataType: 'json',
    data: {data:strValue},         
    success: function(data) {
       alert(data);
    }
 });

Add the quotes aroun the $DCOurl and to manage the return value from the ajax call

$.ajax({
    url: "$DCOurl",
    type: 'POST',
    dataType: 'json',
    data: {data:strValue},         
    success: function(data) {
       if(data.status=='gotData'){
           alert(data.infos);
       }
       if(data.status=='redirect'){
           window.location.href=data.url;
       }
    }
 });