我在EF图中看到了很多这些导航属性,但不确定它们的真正含义.就像我在很多表中看到的那样,我有aspnet_Users属性.
这些是为了什么?他们帮助加入吗?或者是什么?
Error 2
Error 3007: Problem in Mapping Fragments starting at lines 1201, 1423:
Non-Primary-Key column(s) [Field2] are being mapped in both fragments
to different conceptual side properties - data inconsistency is possible
because the corresponding conceptual side properties can be independently
modified.
Run Code Online (Sandbox Code Playgroud) 我将EF Core和ASP Core 2.0一起使用。使用最新的身份框架。我在“全部”页面上收到此异常。
InvalidOperationException:属性“ User”不是实体类型“ Gallery”的导航属性。“ include(string)”方法只能与“。”一起使用。导航属性名称的分隔列表。
ApplicationUser看起来像:
public class ApplicationUser : IdentityUser<Guid>
{
public ICollection<Gallery> Galleries { get; set; }
}
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实体图库如下所示:
public class Gallery
{
public int Id { get; set; }
public Guid UserId { get; set; }
public string Title { get; set; }
public int? ArticleId { get; set; }
public string Photos { get; set; }
public DateTime CreatedAt { get; set; }
public DateTime UpdatedAt { get; set; }
public Article Article …Run Code Online (Sandbox Code Playgroud)