EF 4.1代碼優先初始化我的數據庫

Question

我先使用EF代碼來編譯我的項目。 我使用seed方法初始化數據庫中的數據，但只有一些類模型數據已經註冊到數據庫中。 我沒有任何警告或問題。 爲爲例： 1）不

var categories = new List<Categorie>{ 
       new Categorie{Nom="Informatique"}, 
       new Categorie{Nom="Bien Etre"}, 
}; 
      categories.ForEach(s => context.Categories.Add(s)); 
      context.SaveChanges(); 

級車型：

public class Categorie 
    { 
     public int CategorieID { get; set; } 
     public string Nom { get; set; } 
     public virtual ICollection<Cour> Cours { get; set; } 
    } 

2）完成

var coachs = new List<Coach> 
      { 
new Coach{Nom="Guith",Prenom="Etienne", Login="etienneguith",Password="etienneguith",Profession="Neurologue",Cour="Medecine generale",Email="guithetienne@mic.be",agenda=temp1}, 
new Coach{Nom="John",Prenom="Robert", Login="robertjohn",Password="robertjohn",Profession="Juge",Cour="Droit Penal",Email="robertjohn@mic.be",agenda=temp2}, 
}; 
     categories.ForEach(s => context.Categories.Add(s)); 
     context.SaveChanges(); 

類模型

public class Coach 
    { 
     public int CoachID { get; set; } 
     public string Nom { get; set; } 
     public string Prenom { get; set; } 
     public string Login { get; set; } 
     public string Password { get; set; } 
     public string Profession { get; set; } 
     public string Cour { get; set; } 
     public string Email { get; set; } 
     public DateTime agenda { get; set; } 


     public virtual ICollection<Session> Sessions { get; set; } 

    } 

Answer 1

看起來，你是unint單獨迭代類別集合兩次。

var coachs = new List<Coach> 
{ 
    new Coach{Nom="Guith",Prenom="Etienne", Login="etienneguith",Password="etienneguith",Profession="Neurologue",Cour="Medecine generale",Email="guithetienne@mic.be",agenda=temp1}, 
    new Coach{Nom="John",Prenom="Robert", Login="robertjohn",Password="robertjohn",Profession="Juge",Cour="Droit Penal",Email="robertjohn@mic.be",agenda=temp2}, 
}; 

categories.ForEach(s => context.Categories.Add(s)); 
context.SaveChanges(); 

看起來應該是：

var coachs = new List<Coach> 
{ 
    new Coach{Nom="Guith",Prenom="Etienne", Login="etienneguith",Password="etienneguith",Profession="Neurologue",Cour="Medecine generale",Email="guithetienne@mic.be",agenda=temp1}, 
    new Coach{Nom="John",Prenom="Robert", Login="robertjohn",Password="robertjohn",Profession="Juge",Cour="Droit Penal",Email="robertjohn@mic.be",agenda=temp2}, 
}; 

coachs.ForEach(s => context.Coachs.Add(s)); 
context.SaveChanges();