實體框架代碼優先 - 外鍵關係

我正在使用ASP.NET MVC身份並嘗試使用代碼優先方法創建其他表。我的主表格例如稱爲Orders，這是參考AspNetUsers表（id），並且可以存儲每個用戶的多個訂單。主表中的單獨ID將鏈接到次表中的更多訂單詳情。實體框架代碼優先 - 外鍵關係

我在努力如何實現兩個表之間的關係？如果有人可以請幫助，謝謝

Public Class ApplicationUser 
Inherits IdentityUser 
    Public Overridable Property Orders() As Orders 
End Class 

Public Class Orders 
    Public Property Id As String 'Should link to Id in AspNetUsers Table 
    Public Property TimeandDate As Datetime 
    Public Property OrderNo As Integer 
    Public Overridable Property OrderLineDetail() As ICollection(Of OrderLineDetail) 
End Class 

Public Class OrderLineDetail 
    Public Property Description As String 
    Public Property Price As Decimal 
End class 

Public Class ApplicationDbContext 
    Inherits IdentityDbContext(Of ApplicationUser) 

    Public Sub New() 
     MyBase.New("DefaultConnection", throwIfV1Schema:=False) 
    End Sub 

    Public Property Orders() As DbSet(Of Orders) 

    Public Shared Function Create() As ApplicationDbContext 
     Return New ApplicationDbContext() 
    End Function 

End Class

來源

2017-02-14 A Houghton

爲什麼難道你不只是[谷歌]（http://www.entityframeworktutorial.net/code-first /foreignkey-dataannotations-attribute-in-code-first.aspx）問題的標題？你會發現很多關於數據註釋和約定的材料。 –

在烏爾AspNetUsers表試試這個：

Public Property Orders As ICollection(Of Orders) 
     Get 
     End Get 
     Set 
     End Set 
    End Property

來源

2017-02-14 09:56:51

實體框架代碼優先 - 外鍵關係

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