Why (this) does not work? [требует правки]

I have this html code

<div class="row">
    <div class="anwser " data-index="0-0" data-questionid="Refer_QID" data-type="FormTextBox" data-required="true">
        <div class="col-xs-12">
            <input class="txtBox alpha  hasError" data-index="0-0" type="text" data-anwserid="Refer_ID" maxlength="100">
        </div>
    </div>
</div>
<div class="row">
    <div class="anwser " data-index="0-0" data-questionid="Refer_QID" data-type="FormTextBox" data-required="true">
        <div class="col-xs-12">
            <input class="txtBox alpha  hasError" data-index="0-0" type="text" data-anwserid="Refer_ID" maxlength="100">
        </div>
    </div>
</div>

I'm trying to do what would have happened if the Input class hasError, he appeared and ROW. Here is my jquery script:

if ($(".anwser input").hasClass('hasError')) {
    $(this).parent().css( "border", "2px solid #4f5ca7" );
}

but it does not work. If instead of this I will enter ".anwser" That changes the styles of all Row. And I need only the right