Example [ 'attribute'=>'Image', 'label'=>'image', 'format'=>'html', 'value'=>function($data) { return Html::img(Yii::$app->params['imageuploadurl'].$data['Image'], ['width'=>'100','height'=>'50'],['alt'=>'yii']); }, ], --- Form In---- <?= $form->field($model, 'file')->fileInput() ?> <?= Html::img(Yii::$app->params['imageuploadurl'].$model->Image,['width'=>'100','height'=>'50'],['alt'=>'yii']); ?> NOTE : (...