实体框架:'ComplexType.Field'属性不存在或未映射到类型'Entity'

本文关键字：映射 Entity 类型 Field 框架 ComplexType 实体 属性 不存在 | 更新日期: 2023-09-27 18:11:50

我有一个映射属性值对象/复杂类型到实体的问题。我有一个用户实体，它有一个名为Credential的复杂类型属性，它又有属性:Email、UserName、Password和SecurityStamp。我试图将属性从复杂类型映射到实体，源代码如下所示:

public class User
{
    public string Id { get; protected set; }
    public Credential Credential { get; protected set; }
    // unrelated properties and methods omitted for simplicity
}
public sealed class Credential: ValueObject<Credential>
{
    public string Email { get; private set; }
    public string UserName { get; private set; }
    public string Password { get; private set; }
    public string SecurityStamp { get; private set; }
    public Credential() { }
    public Credential(string email, string userName, string password, string securityStamp)
    {
        Email = email;
        UserName = userName;
        Password = password;
        SecurityStamp = securityStamp;
    } 
public class CoreContext: DbContext
{
    public IDbSet<User> Users { get; set; }
    public CoreContext(string connectionString) : base(connectionString) {}
    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        Database.SetInitializer<CoreContext>(null);
        modelBuilder.ComplexType<Credential>().Property(ucr => ucr.Email).HasColumnName("Email");
        modelBuilder.ComplexType<Credential>().Property(ucr => ucr.UserName).HasColumnName("UserName");
        modelBuilder.ComplexType<Credential>().Property(ucr => ucr.Password).HasColumnName("Password");
        modelBuilder.ComplexType<Credential>().Property(ucr => ucr.SecurityStamp).HasColumnName("SecurityStamp");
        modelBuilder.Entity<User>().Property(u => u.Credential.Email).HasColumnName("Email");
        modelBuilder.Entity<User>().Property(u => u.Credential.UserName).HasColumnName("UserName");
        modelBuilder.Entity<User>().Property(u => u.Credential.Password).HasColumnName("Password");
        modelBuilder.Entity<User>().Property(u => u.Credential.SecurityStamp).HasColumnName("SecurityStamp");
    }
}

如您所见，我试图将复杂类型属性映射到实体。我首先将Credential配置为复杂类型，然后在实体User上配置属性。然而，我收到以下错误:

The 'Credential.Email' property does not exist or is not mapped for the type 'User'.

我不明白为什么会这样。我已经做了一切，我可以配置复杂的类型映射，为什么它不工作?有人知道我哪里做错了吗?

实体框架:'ComplexType.Field'属性不存在或未映射到类型'Entity'

无法复制此:

我在使用相同的设置添加迁移后得到了这个: 

public override void Up()
{
    CreateTable(
            "dbo.Users",
            c => new
            {
                Id = c.String(nullable: false, maxLength: 128),
                Email = c.String(),
                UserName = c.String(),
                Password = c.String(),
                SecurityStamp = c.String()
            })
        .PrimaryKey(t => t.Id);
}

我已经删除的唯一的东西是你的基类上凭据:ValueObject，因为我没有它。一切看起来都很好，也许这门课有什么问题?

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