c# - Entity Framework "Database First" not generating Foreign keys -

i used entity framework reverse engineering seems miss foreign key relations. here database sql code , generated classes:

create table [dbo].[rapportanomalie] ( [code_rapport] int          identity (1, 1) not null, [date_rapport] datetime     not null, [etat]         varchar (50) not null, [code_agence]  int          not null, primary key clustered ([code_rapport] asc), constraint [fk_rapportanomalie_totable] foreign key ([code_agence]) references [dbo].[agence] ([code_agence])   create table agence ( [code_agence] int not null primary key,  [intitule_agence] varchar(100) not null,  [adresse_agence] varchar(100) not null ) 

agence.cs:

[table("agence")] public partial class agence {     [key]     [databasegenerated(databasegeneratedoption.none)]     public int code_agence { get; set; }      [required]     [stringlength(100)]     public string intitule_agence { get; set; }      [required]     [stringlength(100)]     public string adresse_agence { get; set; }  } } 

and rapport.cs:

[table("rapportanomalie")] public partial class rapportanomalie {     [key]     public int code_rapport { get; set; }      public datetime date_rapport { get; set; }      [required]     [stringlength(50)]     public string etat { get; set; }      public int code_agence { get; set; } } } 

what problem there?

probably duplicate question following linkthe question posed on stack on flow

and here related answer of above link guess of value youef reveres engineering

good luck