正在验证 MVC 隐藏字段

我的页面上有一些字段，它们的显示和消失取决于您在页面上所做的下拉选择。

所以，举例来说，我有

<section>
            @Html.LabelFor(model => model.AuctionTypeId)
            <div> @Html.DropDownList("AuctionTypeId", Model.AuctionTypes, @AuctionControllerResource.SelectAuctionType, new { id="auctionType", required = "required" })
                @Html.ValidationMessageFor(model => model.AuctionTypeId)       </div>
        </section>
        <section>
            @Html.LabelFor(model => model.AutomaticExtensionType, new { hidden = "true", id = "automaticExtensionTypeLabel" })
            <div> @Html.DropDownList("AutomaticExtensionType", Model.AutomaticExtensions, @AuctionControllerResource.SelectAutomaticExtensionType, new { hidden="hidden", required = "required", id = "automaticExtensionTypeList" }) 
                @Html.ValidationMessageFor(model => model.AutomaticExtensionType)       </div>
        </section>

我为此的 JQuery 代码是

$('#auctionType').change(function () {
    var selectedAuctionType = $("#auctionType").val();
    var englishAuctionType = $("#englishAuctionTypeId").val();
    if (selectedAuctionType == englishAuctionType) {
        $("#automaticExtensionTypeList").show();
        $("#automaticExtensionTypeLabel").show();
    } else {
        $("#automaticExtensionTypeList").hide();
        $("#automaticExtensionTypeLabel").hide();
    }
});

现在，显示和隐藏就可以正常工作了。问题是当我提交表单和字段时automaticExtensionTypeList被隐藏，表单不会提交，因为automaticExtensionTypeList是必填字段。问题是如何告诉 MVC 仅验证可见字段？

我浏览了我们在这个项目中编写的一些 JQuery，我们有这一行

$.validator.setDefaults({ ignore: [] });

显然这可以实现隐藏验证。我的问题是，哪一行代码的作用相反？

尝试这个：

$.validator.setDefaults({
    ignore: ':hidden, [readonly=readonly]'
});

或用于定制

$.validator.setDefaults({
    ignore: "#automaticExtensionTypeList" 
});