public static class CustomHtmlHelper {

    public static MvcHtmlString MyFieldBox(this HtmlHelper html, Expression> expression, String title) {

        StringBuilder sb = new StringBuilder();
        sb.AppendLine("
");
        sb.AppendLine("
\");
        sb.AppendLine("{0}", title);
        sb.AppendLine("
");
        sb.AppendLine( htmlHelper.TextBoxFor( expression, new { @class = "form-control inline-input" }) );
        sb.AppendLine("
");
        sb.AppendLine( htmlHelper.ValidationMessageFor( expression );
        sb.AppendLine("
");
        return new MvcHtmlString( sb.ToString() );
    }

}