What is the $dataprovider?

Yii 2.0 General Discussions
1

Hello,

I would like to know how to use the $dataprovider please, what is it? and how shall I use it, do you have an example please?

<?= GridView::widget([

'dataProvider' =&gt; &#036;dataProvider,


'filterModel' =&gt; &#036;searchModel,


'columns' =&gt; [


    ['class' =&gt; 'yii&#092;grid&#092;SerialColumn'],





    'categoryid',


    'categoryname',


    'parentid',


    'createdon',


    // 'isactive',





    ['class' =&gt; 'yii&#092;grid&#092;ActionColumn'],


],

]); ?>

Thank you,

Ben

2

Data provider is passed from the controller.

Go to the controller action and see what it is.

It could be something like $dataprovider= new User;

Then look in the use statements and see where User is located ie

use common/model/user

So dataprovider = a new instance of the common model user for that example

3

The dataproviders are used to display data. There are used with the widgets.

Doc here

4

Thanks to both of you.