我有一个EF对象:序列化对象EF成JSON - ASP.NET MVC
public class User
{
[Key, Column("userid", TypeName = "int")]
public Int32 UserId { get; set; }
[Column("username", TypeName = "varchar")]
public String UserName { get; set; }
[Column("password", TypeName = "varchar")]
public String Password { get; set; }
[Column("name", TypeName = "varchar")]
public String Name { get; set; }
[Column("surname", TypeName = "varchar")]
public String Surname { get; set; }
[Column("email", TypeName = "varchar")]
public String Email { get; set; }
[Column("dob", TypeName = "datetime")]
public Nullable<DateTime> Dob { get; set; }
[Column("notes", TypeName = "nvarchar")]
public String Notes { get; set; }
[Column("masterentity", TypeName = "varchar")]
public String MasterEntity { get; set; }
[Column("propertyid", TypeName = "int")]
public Nullable<Int32> PropertyId { get; set; }
[Column("boardmember", TypeName = "bit")]
public Boolean BoardMember { get; set; }
[Column("occupiesunit", TypeName = "bit")]
public Boolean OccupiesUnit { get; set; }
[Column("systemuser", TypeName = "bit")]
public Boolean SystemUser { get; set; }
[Column("isactive", TypeName = "bit")]
public Boolean IsActive { get; set; }
#region Foreing Keys
[ForeignKey("MasterEntity")]
public virtual Entity CurrentMasterEntity { get; set; }
#endregion
}
在客户端我试着到模型序列化为JSON对象是这样的:
var jsonUser = @(Html.Raw(Json.Encode(this.Model)));
林收到以下错误:
A circular reference was detected while serializing an object of type ....
我知道的是,如果我删除 Foreing Keys Fluent API
[ForeignKey("MasterEntity")]
public virtual Entity CurrentMasterEntity { get; set; }
然后它的工作完美。所以似乎与其他实体关系的实体或对象不能被使用JSON序列化。
任何人都有解决这个问题的好方法吗? IS EF 5.0将解决这个问题?
非常感谢。
我已编辑您的答案,请参阅我的意见。非常感谢并保持联系。 – VAAA 2012-07-24 19:05:44
我从控制器返回实体,如下所示: var userObj = db.Users.Where(u => u.UserId == id).FirstOrDefault(); return PartialView(userObj); 可以么? – VAAA 2012-07-24 19:07:25
我拒绝了你的修改,对不起,应该是另一个评论。但是你说你添加'ScriptIgnore'并没有任何反应。我怀疑以下两件事之一:或者你的班级里有更多你向我们展示的内容,或者因为代理EF构建在班级之上,Json序列化会变得困惑。你真的需要它吗?如果不是,请尝试从您的课堂*中删除'虚拟'修饰符并*放置'ScriptIgnore'。 – 2012-07-24 19:11:06