=$search->field($searchCase, 'id_case')->widget(MaskedInput::className(), [
'mask' => 'AA99-99999',
'options' => [
'class' => 'form-control input-lg',
'autofocus' => true,
'style' => 'font-weight: bold'
]
])?>
=Html::submitButton(' ต้นหา', ['class' => 'btn btn-info'])?>