一对一关系实体框架出错

Question

Good Day:

I'm trying to accomplish one to one mapping using Entity Framework but, getting this error:

The foreign key component 'Id' is not a declared property on type 'UserUpload'. Verify that it has not been explicitly excluded from the model and that it is a valid primitive property.

This is my code below:

 public abstract class Upload 
    {
        [Key]
        [Ignore]
        public virtual Guid Id { get; set; }

        public string Path { get; set; }

        public string Name { get; set; }

        public long   Size { get; set; }

        public UploadTypes Type { get; set; }

        [Ignore]
        [Timestamp]
        public byte[] RowVersion { get; set; }
    }

And my subclass:

   public class UserUpload : Upload
    {
        [Key]
        [ForeignKey("User")]
        public override Guid Id { get { return base.Id; } set { base.Id = value; } }


        public ApplicationUser User { get; set; }

    }

In my abstract class, I have [Ignore] due to the fact that I want the property ignored by NEST (ElasticSearch dependency). I need this for Entity Framework nonetheless (my UserUpload ).

Answer 1

Verify that it has not been explicitly excluded from the model

[Ignore]
[Key]
public virtual Guid Id { get; set; }

You HAVE explicitly excluded it from the model.

Answer 2

I would suggest to add the key configuration in the modelbuilder for that model. I found that writting there the model configuration is usually a better option.

Finally, check: 'and that it is a valid primitive property.'

Guid is not a primitive, use int instead.