Linq Many to many in Entity Framework core

Linq Many to many in Entity Framework core

I have classes for building many to many relationships.

I have classes for building many to many relationships.

public class Chat 
{
    [Key]
    public Guid Id { get; set; }
    public ICollection<ApplicationUserChat> UserChats { get; set; }
}

public class ApplicationUserChat { [Required] public string UserId { get; set; } public ApplicationUser User { get; set; }

public Guid ChatId { get; set; }
public Chat Chat { get; set; }

}

public class ApplicationUser : IdentityUser {
public ICollection<ApplicationUserChat> UserChats { get; set; }
}

For example, I have a user1 and user2

  1. I need to Select chats for user1 where chat contains a user2
  2. I need to select chat for user1 where chat contains a user2 and not contains another users (like one chat contains only 2 participants)
  3. How I can do this in EF Core?


c-sharp entity-framework .net linq

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