我不确定为什么会收到此错误消息。我在sql数据库中为它定义了一个主键。下面是我的代码:
[HttpPost]
public ActionResult Register(RegisterModel model)
{
if (ModelState.IsValid)
{
// Attempt to register the user
MembershipCreateStatus createStatus = MembershipService.CreateUser(model.UserName, model.Password, model.Email);
if (createStatus == MembershipCreateStatus.Success)
{
FormsService.SignIn(model.UserName, false /* createPersistentCookie */);
MembershipUser myObject = Membership.GetUser();
Guid UserID = (Guid)myObject.ProviderUserKey;
MyProfile profile = new MyProfile();
profile.Address = model.Address;
profile.City = model.City;
profile.Zip = model.Zip;
profile.State = model.State;
profile.UserId = UserID;
db.Profiles.Add(profile);
return RedirectToAction("Index", "Home");
}
else
{
ModelState.AddModelError("", AccountValidation.ErrorCodeToString(createStatus));
}
}
// If we got this far, something failed, redisplay form
ViewBag.PasswordLength = MembershipService.MinPasswordLength;
return View(model);
}
这是我的MyProfile类:
namespace MatchGaming.Models
{
[Bind(Exclude = "ProfileId")]
public class MyProfile
{
[ScaffoldColumn(false)]
public int ProfileId { get; set; }
public Guid UserId { get; set; }
[DisplayName("Address")]
public string Address { get; set; }
[DisplayName("City")]
public string City { get; set; }
[DisplayName("Zip")]
public string Zip { get; set; }
[DisplayName("State")]
public string State { get; set; }
}
}
我不确定为什么在尝试添加到数据库db.Profiles.Add(profile);
时会出现这个错误:EntityType 'MyProfile' has no key defined. Define the key for this EntityType.
。
发布于 2011-03-15 10:45:45
哪个字段是您的关键字?无论是ProfileId还是UserId,要么将名称更改为MyProfileId或Id,要么为其添加一个键属性。
发布于 2014-01-20 09:45:07
我也遇到了这个问题,我想补充一点,在实体框架版本6中发生这个错误是因为DbgGeography类型已经从程序集system.data.entity移到了entityframework.dll中
要在EF dll中解决此问题,请移除对实体6+的引用,并将using语句更改为using System.Data.Entity.Spatial
https://stackoverflow.com/questions/5306947
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