Mvc 4编辑不适用于City

Question

我在mvc 4中有一个编辑视图。除了我想要改变城市的时候，一切似乎都很好。

    <p>
        <label for="Password">Password</label>
        @Html.EditorFor(model => model.Password)
        @Html.ValidationMessageFor(model => model.Password)
    </p>

    <p>
        <label for="Address.City">City</label>
        @Html.EditorFor(model => model.Address.City)
        @Html.ValidationMessageFor(model => model.Address.City)

    </p>

在用户类中，我有这样的解决方法

    public virtual Guid? AddressId { get; set; }
    public virtual Address Address { get; set; }

和地址类

public class Address : SequoiaPersistanceItemBase
{
    [MaxLength(100)]
    public virtual string Street { get; set; }
    [MaxLength(100)]
    public virtual string Street2 { get; set; }
    [MaxLength(100)]
    public virtual string City { get; set; }

    [AuditDetail(Type = typeof(StateType))]
    public virtual int? StateTypeId { get; set; }
    public virtual StateType StateType { get; set; }

    [MaxLength(100)]
    public virtual string PostalCode { get; set; }

    [AuditDetail(Type = typeof(CountryType))]
    public virtual int? CountryTypeId { get; set; }
    public virtual CountryType CountryType { get; set; }

    [AuditDetail(Type = typeof(CountyType))]
    public virtual int? CountyTypeId { get; set; }
    public virtual CountyType CountyType { get; set; }

我现在的问题是，当我尝试编辑时，除了城市之外，所有内容都会更改（名字，姓氏，用户名，密码）。单击“保存”时，没有任何更改。但是，当我尝试创建新用户时，我可以添加地址，并在索引页面中显示。