Question

我正在尝试发布一些嵌套对象。

我有一个Cart类，里面有两个属性ShippingAddress和BillingAddress。地址的类型为ContactInformation。

在一个视图上，我包括一个局部视图（AddressForm），我将ShipppingAddress传递给该局部视图；在另一个视图上，我想要显示相同的局部视图，但我将其传递给BillingAddress。

现在，当我填写ShippingAddress时，我会将整个Cart对象传递给post方法，但ShippingAddress为空。

我试图根据我在那里传递的地址类型来设置ViewData.TemplateInfo.HtmlFieldPrefix。因此，当我传递ShippingAddress时，HtmlFieldPrefix是“ ShippingAddress”。元素的所有id确实具有ShippingAddress前缀。在提交后的post方法上，我有这个[Bind（Prefix =“ ShippingAddress”）] CartViewModel模型，但送货信息仍然为空。

这是一些代码

购物车型号

     public class CartViewModel
{
    public ContactInformation ShippingAddress { get; set; } = new ContactInformation(EAddressType.ShippingAddress);
    public ContactInformation BillingAddress { get; set; } = new ContactInformation(EAddressType.BillingAddress);
}

地址模型

    public class ContactInformation
{
    public EAddressType AddressType { get; set; }

    public string FirstName { get; set; }

    public string LastName { get; set; }

    public string Address { get; set; }

    public string City { get; set; }

    public string PostalCode { get; set; }

    public ContactInformation(EAddressType addressType)
    {
        AddressType = addressType;
    }
}

这是我要在其中显示送货地址表格的视图

    @model  CartViewModel

    @using (Ajax.BeginForm(InformationFormSubmit, Cart, null,
            new AjaxOptions
            {
                HttpMethod = "POST",
                AllowCache = false,
                InsertionMode = InsertionMode.Replace,
                UpdateTargetId = _InformationForm,
        }, htmlAttributes: new { }))
    {
        <div id="_InformationForm">
            @Html.Partial(_InformationForm, Model)
        </div>
    }

_InformationForm看起来像这样

    @model  CartViewModel

@Html.Partial(_AddressForm, Model.ShippingAddress)
    <button type="submit" >@Resource.ContinueToShipping</button>

最后是我的地址表格

    @model  ContactInformation

ViewData.TemplateInfo.HtmlFieldPrefix = Model.AddressType == EAddressType.ShippingAddress ? "ShippingAddress" : "BillingAddress";
@Html.HiddenFor(m => m.AddressType)

        @Html.TextBoxFor(a => a.FirstName, htmlAttributes: new { id = Html.IdFor(a => a.FirstName)})

        @Html.TextBoxFor(a => a.LastName, htmlAttributes: new {id = Html.IdFor(a => a.LastName) })

        @Html.TextBoxFor(a => a.Address, htmlAttributes: new { id = Html.IdFor(a => a.Address)})

        @Html.TextBoxFor(a => a.City, htmlAttributes: new { id = Html.IdFor(a => a.City)})

        @Html.TextBoxFor(a => a.PostalCode, htmlAttributes: new {id = Html.IdFor(a => a.PostalCode) })

我的帖子操作如下

    [HttpPost]
    public virtual ActionResult InformationFormSubmit([Bind(Prefix = "ShippingAddress")] CartViewModel model)
    {
        if (ModelState.IsValid)
        {
            CartViewModelEntity.ShippingAddress.FirstName = model.ShippingAddress.FirstName;
            CartViewModelEntity.ShippingAddress.LastName = model.ShippingAddress.LastName;
            CartViewModelEntity.ShippingAddress.Address = model.ShippingAddress.Address;
            CartViewModelEntity.ShippingAddress.City = model.ShippingAddress.City;
            CartViewModelEntity.ShippingAddress.PostalCode = model.ShippingAddress.PostalCode;
        }

        return PartialView(_InformationForm, model);
    }

但是，当然，在发布操作中，ShippingAddress为空。

不知道我在做什么错..

感谢帮助

发布复杂的嵌套对象

0 个答案: