'btn btn-success']) ?>

$dataProvider, 'filterModel' => $searchModel, 'columns' => [ ['class' => 'yii\grid\SerialColumn'], [ 'attribute' => 'manager_id', 'value' => 'manager.user.userCard.fio', ], [ 'attribute' => 'employee_id', 'value' => 'employee.email', ], ['class' => 'yii\grid\ActionColumn'], ], ]); ?>