Question

我有以下结构：

CREATE TABLE [dbo].[Decisions](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [DecisionName] [nvarchar](250) NOT NULL,
 CONSTRAINT [PK_Decisions] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

CREATE TABLE [dbo].[Vacancies](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [DecisionID] [int] NOT NULL,
    .....
 CONSTRAINT [PK_Vacancies] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

ALTER TABLE [dbo].[Vacancies]  WITH CHECK ADD  CONSTRAINT [FK_Vacancies_Decisions] FOREIGN KEY([DecisionID])
REFERENCES [dbo].[Decisions] ([ID])
ON UPDATE CASCADE
ON DELETE CASCADE
GO

ALTER TABLE [dbo].[Vacancies] CHECK CONSTRAINT [FK_Vacancies_Decisions]
GO

所以，正如您所看到的，决策和职位空缺相互关联为一对多。好。然后我在我的.NET应用程序中创建一个ADO.NET实体数据模型，然后尝试将Decision for ID转换为枚举。已完成。然后我尝试编译我的应用程序并得到以下错误：

错误2错误112：从属角色中所有属性的类型引用约束必须与相应的约束相同主体角色中的属性类型。财产的类型＆＃39; DecisionID＆＃39;实体＆＃39; VTSModel.Vacancy＆＃39;与类型不匹配财产＆＃39; ID＆＃39;实体＆＃39; VTSModel.Decision＆＃39;在参考约束＆＃39; FK_Vacancies_Decisions＆＃39;。

为什么会这样？我在决策表中有4条记录（ID等于1,2,3,4），用这样的ID创建了4个枚举值，基础类型是Int32，表空位完全是空的（空置实体的DecisionID也有Int32）< / p>

我使用Visual Studio 2013 + MVC 5 + Entity Framework 6.1.2 + MS SQL 2014

实体框架 - 将字段转换为枚举

0 个答案: