jQuery验证：使用远程验证器

<form action=\"<%=Url.Action(\"Register\", \"Home\")%>\" method=\"post\" id=\"form-sign-up\">

<form action=\"/Region/Save\" method=\"post\" id=\"Form-AddRegion\">
    <div class=\"editor-label\">
        <%: Html.Label(\"Region:\") %>
        <%: Html.TextBoxFor(model => model.Region, new { @class = \"edit required remote\"}) %>
    </div>

    <p>
        <input type=\"submit\" value=\"Save\" />
        <input type=\"button\" onClick=\"window.parent.CloseWindow();\" value=\"Cancel\" />
    </p>
</form>

public ActionResult ValidateRegion(string name)
{
    if (!something)
        return Json(true, JsonRequestBehavior.AllowGet);
    return Json(false, JsonRequestBehavior.AllowGet);
}

<script type=\"text/javascript\">

    $(document).ready(function () {

        alert(\'jQuery is referenced properly\');

        $(\"#Form-AddRegion\").validate({
            rules:
            {
                //rules each for specified input-id
                Region:
                {
                    required: true,
                    remote: \'<%=Url.Action(\"ValidateRegion\",\"Region\") %>\'
                }
            },
            messages:
            {
                Region:
                {
                    required: \"Please provide a Region\",
                    remote: jQuery.format(\"{0} is already in use\")
                }
            }
        });
    });
</script>

ValidateRegion

/Region/Save