SO - 28691296

by Arun P Johny

HTML

<form id="form1" runat="server">
    <h1>Validation test</h1>
    
    <div>
        <table>
            <tr>
                <td>
                    <input class="validation-control-is-not-empty" />
                </td>
                <td>
                    <div class="validation-alert" style="display: none;">!!!</div>
                </td>
            </tr>
            <tr>
                <td>
                    <input class="validation-control-is-not-empty" />
                </td>
                <td>
                    <div class="validation-alert" style="display: none;">!!!</div>
                </td>
            </tr>
        </table>
    </div>
</form>

JavaScript

$('.validation-control-is-not-empty').focusout(function () {
    $(this).closest('tr').find('.validation-alert').toggle($(this).val() === '');
});