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How to load linked entities with IdentityUser and Entity Framework


How to load linked entities with IdentityUser and Entity Framework

By : AddisonR
Date : November 20 2020, 01:01 AM
help you fix your problem Your class for Book doesn't include user information for the foreign key reference. Try adding
code :
[ForeignKey("UserId")]
public MyUser User { get; set; }
_ctx.Users.Include(u=> u.Books)


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Entity Framework - Load entities with child entity

Entity Framework - Load entities with child entity


By : Lukas Reichart
Date : March 29 2020, 07:55 AM
help you fix your problem You can create your own extension method which will allow you to use Include(path) against any IQueryable:
code :
public static IQueryable<TSource> Include<TSource>
  (this IQueryable<TSource> source, string path)
{
  var objectQuery = source as ObjectQuery<TSource>;
  if (objectQuery != null)
  {
    return objectQuery.Include(path);
  }
  return source;
}
Entity framework load entities from XML

Entity framework load entities from XML


By : Ken L
Date : March 29 2020, 07:55 AM
To fix the issue you can do It turned out that my model was not correct in the first place, and a few changes did the trick. for your attention.
How do I create linked X entities for a X entity using Entity Framework Core 2.0

How do I create linked X entities for a X entity using Entity Framework Core 2.0


By : user7827487
Date : March 29 2020, 07:55 AM
Does that help You have two relationships through ProductLink.Product and ProductLink.LinkedProduct reference navigation properties, but only one collection navigation property Product.ProductLinks, so EF does not know how to map them.
The minimum change required is to map the ProductLinks to one of the two related properties, for instance using InverseProperty attribute:
code :
[InverseProperty("Product")]
public virtual List<ProductLink> ProductLinks { get; set; } = new List<ProductLink>();
Entity Framework - Can't seem to load related entities

Entity Framework - Can't seem to load related entities


By : user1810767
Date : March 29 2020, 07:55 AM
How can I load all Entity Framework 4.1 entity configuration entities via reflection?

How can I load all Entity Framework 4.1 entity configuration entities via reflection?


By : grue
Date : March 29 2020, 07:55 AM
it should still fix some issue I'm not sure why this information is so hard to find (at least it was for me), but there is a much simpler way to do it detailed here.
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