HOW TO：將實體加入至模型

若要建立實體，請將實體從 Visual Studio 的 [工具箱] 拖曳至商務資料連接 (BDC) 設計工具上。

若要在模型中新增實體

1. 建立 BDC 專案或開啟現有的 BDC 專案。 如需詳細資訊，請參閱建立商務資料連接模型。

2. 在 [工具箱] 中，將實體從 [BusinessDataCatalog] 群組拖曳至設計工具。

   新實體隨即出現在設計工具中。 Visual Studio 會將 <Entity> 項目新增至專案內 BDC 模型檔案的 XML。 如需 Entity 項目屬性的詳細資訊，請參閱 Entity (英文)。

3. 在設計工具中，以滑鼠右鍵按一下實體，再按一下 [加入]，然後按一下 [識別項]。

   新識別項隨即出現在實體上。

   注意事項
   您可以在 [屬性視窗] 中變更實體名稱和識別項。

4. 在類別中定義實體的欄位。 您可以使用物件關聯式設計工具 (O/R 設計工具) 等其他工具將新類別加入至專案，也可以使用現有的類別。 下列範例顯示名為 Contact 的實體類別。

   Partial Public Class Contact
   
       Private _ContactID As Integer
       Public Property ContactID() As Integer
           Get
               Return _ContactID
           End Get
           Set(ByVal value As Integer)
               _ContactID = value
           End Set
       End Property
       Private _FirstName As String
       Public Property FirstName() As String
           Get
               Return _FirstName
           End Get
           Set(ByVal value As String)
               _FirstName = value
           End Set
       End Property
       Private _LastName As String
       Public Property LastName() As String
           Get
               Return _LastName
           End Get
           Set(ByVal value As String)
               _LastName = value
           End Set
       End Property
       Private _EmailAddress As String
       Public Property EmailAddress() As String
           Get
               Return _EmailAddress
           End Get
           Set(ByVal value As String)
               _EmailAddress = value
           End Set
       End Property
       Private _Phone As String
       Public Property Phone() As String
           Get
               Return _Phone
           End Get
           Set(ByVal value As String)
               _Phone = value
           End Set
       End Property
       Private _EmailPromotion As Integer
       Public Property EmailPromotion() As Integer
           Get
               Return _EmailPromotion
           End Get
           Set(ByVal value As Integer)
               _EmailPromotion = value
           End Set
       End Property
       Private _NameStyle As Boolean
       Public Property NameStyle() As Boolean
           Get
               Return _NameStyle
           End Get
           Set(ByVal value As Boolean)
               _NameStyle = value
           End Set
       End Property
       Private _PasswordHash As String
       Public Property PasswordHash() As String
           Get
               Return _PasswordHash
           End Get
           Set(ByVal value As String)
               _PasswordHash = value
           End Set
       End Property
       Private _PasswordSalt As String
       Public Property PasswordSalt() As String
           Get
               Return _PasswordSalt
           End Get
           Set(ByVal value As String)
               _PasswordSalt = value
           End Set
       End Property
   
   End Class
   

       public partial class Contact
       {
           public int ContactID { get; set; }
           public string FirstName { get; set; }
           public string LastName { get; set; }
           public string EmailAddress { get; set; }
           public string Phone { get; set; }
           public int EmailPromotion { get; set; }
           public bool NameStyle { get; set; }
           public string PasswordHash { get; set; }
           public string PasswordSalt { get; set; }
   
       }
   

請參閱

工作

HOW TO：加入建立者方法

HOW TO：加入刪除者方法

HOW TO：加入更新者方法

HOW TO：加入搜尋方法

HOW TO：加入特定搜尋方法