In my ASP.NET in the application I use Identity for authorization and registration. I plan to add a small chat, to do this, define the next class for the message
[Table("Messages", Schema = "dbo")]
public class Message
{
[Key]
public int Id { get; set; }
public string Text { get; set; }
public DateTime SendingTime { get; set; }
[MaxLength(128),ForeignKey("User")]
public virtual string SenderID { get; set; }
public virtual User User { get; set; }
}
User class
public class User : IdentityUser
{
}
In the database, the structure of the table with messages looks like this
Id INT PRIMARY KEY,
SenderId NVARCHAR(128),
CONSTRAINT FK_Messages_To_Users FOREIGN KEY (SenderId) REFERENCES AspNetUsers (Id) ON DELETE CASCADE ,
Text NVARCHAR(1000) NOT NULL,
SendingTime Datetime
When I try to write a message to the database, I get the following error
OnlineChat.DataAccessLayer.Chat.IdentityUserLogin: : EntityType 'IdentityUserLogin' has no key defined. Define the key for this EntityType.
OnlineChat.DataAccessLayer.Chat.IdentityUserRole: : EntityType 'IdentityUserRole' has no key defined. Define the key for this EntityType.
IdentityUserLogins: EntityType: EntitySet 'IdentityUserLogins' is based on type 'IdentityUserLogin' that has no keys defined.
IdentityUserRoles: EntityType: EntitySet 'IdentityUserRoles' is based on type 'IdentityUserRole' that has no keys defined.
What is the mistake? What did I miss?
