C# ReferentialConstraint中的依赖属性映射到存储生成的列。专栏：_C#_Entity Framework 4_Database Schema_Referential Integrity

C# ReferentialConstraint中的依赖属性映射到存储生成的列。专栏：

c# entity-framework-4

C# ReferentialConstraint中的依赖属性映射到存储生成的列。专栏：,c#,entity-framework-4,database-schema,referential-integrity,C#,Entity Framework 4,Database Schema,Referential Integrity,首先，感谢您抽出时间阅读本文。我在尝试使用EF更新数据库时遇到了一些困难。我以前在另一个项目中使用过同样的方法，所以我认为问题可能在数据库中，但我没有看到它。数据库是SQL2005中的遗留数据库，命名约定还有很多需要改进的地方，因此我一直在通过HasColumnName方法将不一致的名称映射到更一致的名称：如中所示 modelBuilder.Entity<Case_Person_1>().ToTable("dbo.Case_Person_1"); mo

首先，感谢您抽出时间阅读本文。我在尝试使用EF更新数据库时遇到了一些困难。我以前在另一个项目中使用过同样的方法，所以我认为问题可能在数据库中，但我没有看到它。数据库是SQL2005中的遗留数据库，命名约定还有很多需要改进的地方，因此我一直在通过HasColumnName方法将不一致的名称映射到更一致的名称：如中所示

        modelBuilder.Entity<Case_Person_1>().ToTable("dbo.Case_Person_1");
        modelBuilder.Entity<Case_Person_1>().Property(c => c.Id).HasColumnName("CaseNumber");

}

外键：

    ALTER TABLE [dbo].[CP_ActualDischarge]  WITH NOCHECK ADD  CONSTRAINT         [FK_CP_ActualDischarge_Case_PHTSY] FOREIGN KEY([Case_PHTSYId])
    REFERENCES [dbo].[Case_PHTSY] ([Id])
    ON DELETE CASCADE
    NOT FOR REPLICATION 
    GO
    ALTER TABLE [dbo].[CP_ActualDischarge] CHECK CONSTRAINT [FK_CP_ActualDischarge_Case_PHTSY]

    ALTER TABLE [dbo].[CP_AgencyContacts]  WITH NOCHECK ADD  CONSTRAINT         [FK_CP_AgencyContacts_Case_PHTSY] FOREIGN KEY([Case_PHTSYId])
    REFERENCES [dbo].[Case_PHTSY] ([Id])
    ON DELETE CASCADE
    NOT FOR REPLICATION 
    GO
ALTER TABLE [dbo].[CP_AgencyContacts] CHECK CONSTRAINT [FK_CP_AgencyContacts_Case_PHTSY]

    ALTER TABLE [dbo].[CP_Barriers]  WITH NOCHECK ADD  CONSTRAINT     [FK_CP_Barriers_Case_PHTSY] FOREIGN KEY([Case_PHTSYId])
REFERENCES [dbo].[Case_PHTSY] ([Id])
ON DELETE CASCADE
NOT FOR REPLICATION 
GO
ALTER TABLE [dbo].[CP_Barriers] CHECK CONSTRAINT [FK_CP_Barriers_Case_PHTSY]

ALTER TABLE [dbo].[CP_DischargeActivities]  WITH NOCHECK ADD  CONSTRAINT [FK_CP_DischargeActivities_Case_PHTSY] FOREIGN KEY([Case_PHTSYId])
REFERENCES [dbo].[Case_PHTSY] ([Id])
ON DELETE CASCADE
NOT FOR REPLICATION 
GO
ALTER TABLE [dbo].[CP_DischargeActivities] CHECK CONSTRAINT [FK_CP_DischargeActivities_Case_PHTSY]
GO


        modelBuilder.Entity<Case_PHTSY>().HasMany(c => c.AgencyContacts).WithOptional().HasForeignKey(k => k.Case_PHTSYId);
            modelBuilder.Entity<Case_PHTSY>().HasMany(c => c.Barriers).WithOptional().HasForeignKey(k => k.Case_PHTSYId);
            modelBuilder.Entity<Case_PHTSY>().HasMany(r => r.DischargeActivities).WithOptional().HasForeignKey(k => k.Case_PhstsyId);
            modelBuilder.Entity<Case_PHTSY>().HasMany(c => c.Roles).WithOptional().HasForeignKey(k => k.Case_PHTSYId);
            modelBuilder.Entity<Case_PHTSY>().HasMany(m => m.Case_Person_RD1s).WithOptional().HasForeignKey(k => k.Case_PhtsyId);
            modelBuilder.Entity<Case_PHTSY>().HasMany(o => o.DischargeActivities).WithOptional().HasForeignKey(k => k.Case_PhstsyId);
            modelBuilder.Entity<Case_PHTSY>().HasOptional(o => o.F_FamilyHistory).WithRequired();
            modelBuilder.Entity<Case_PHTSY>().HasMany(o => o.PHTSY_CensusCodes).WithOptional().HasForeignKey(k => k.Case_PHTSYId);



the primary table: 
CREATE TABLE [dbo].[Case_PHTSY](
    [Id] [int] IDENTITY(5000,1) NOT FOR REPLICATION NOT NULL,
    [FamilyHistoryID] [int] NULL,   
    [IntensityNHours] [smallint] NULL,
    [IEPRequested] [bit] NULL CONSTRAINT [DF_Case_PHTSY_IEPRequested]  DEFAULT (0),
    ...
    [Kidnet] [bit] NULL,
 CONSTRAINT [PK_Case_PHTSY] 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]

GO
SET ANSI_PADDING OFF
GO
ALTER TABLE [dbo].[Case_PHTSY]  WITH NOCHECK ADD  CONSTRAINT [FK_Case_PHTSY_F_FamilyHistory] FOREIGN KEY([FamilyHistoryID])
REFERENCES [dbo].[F_FamilyHistory] ([FamilyHistoryID])
ON DELETE CASCADE
NOT FOR REPLICATION 
GO
ALTER TABLE [dbo].[Case_PHTSY] CHECK CONSTRAINT [FK_Case_PHTSY_F_FamilyHistory]
GO
ALTER TABLE [dbo].[Case_PHTSY]  WITH CHECK ADD  CONSTRAINT [FK_Case_PHTSY_Persons] FOREIGN KEY([CaseChildID])
REFERENCES [dbo].[Persons] ([PersonID])
GO
ALTER TABLE [dbo].[Case_PHTSY] CHECK CONSTRAINT [FK_Case_PHTSY_Persons]

CREATE TABLE [dbo].[CP_ActualDischarge](
    [Id] [int] IDENTITY(1,1) NOT NULL,
    [Case_PHTSYId] [int] NOT NULL,
    [DischargeDate] [datetime] NULL,

 CONSTRAINT [PK_CP_ActualDischarge] 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]

GO
SET ANSI_PADDING OFF
GO
ALTER TABLE [dbo].[CP_ActualDischarge]  WITH NOCHECK ADD  CONSTRAINT [FK_CP_ActualDischarge_Case_PHTSY] FOREIGN KEY([Case_PHTSYId])
REFERENCES [dbo].[Case_PHTSY] ([Id])
ON DELETE CASCADE
NOT FOR REPLICATION 
GO
ALTER TABLE [dbo].[CP_ActualDischarge] CHECK CONSTRAINT [FK_CP_ActualDischarge_Case_PHTSY]

CREATE TABLE [dbo].[CP_AgencyContacts](
    [AgencyContactID] [int] IDENTITY(1,1) NOT FOR REPLICATION NOT NULL,
    [Case_PHTSYId] [int] NOT NULL,
    [AgencyType] [int] NULL,
    [Agency] [int] NULL,
 CONSTRAINT [PK_Case_PHTSY_AgencyContacts] PRIMARY KEY CLUSTERED 
(
    [AgencyContactID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
SET ANSI_PADDING OFF
GO
ALTER TABLE [dbo].[CP_AgencyContacts]  WITH NOCHECK ADD  CONSTRAINT [FK_CP_AgencyContacts_Case_PHTSY] FOREIGN KEY([Case_PHTSYId])
REFERENCES [dbo].[Case_PHTSY] ([Id])
ON DELETE CASCADE
NOT FOR REPLICATION 
GO
ALTER TABLE [dbo].[CP_AgencyContacts] CHECK CONSTRAINT [FK_CP_AgencyContacts_Case_PHTSY]

ALTER TABLE[dbo].[CP_ActualDischarge]NOCHECK添加约束[FK_CP_ActualDischarge_Case_PHTSY]外键（[Case_PHTSYId]）
参考文献[dbo]。[Case_PHTSY]（[Id]）
关于删除级联
不适用于复制
去
ALTER TABLE[dbo].[CP_ActualDischarge]检查约束[FK_CP_ActualDischarge_Case_PHTSY]
使用NOCHECK ADD CONSTRAINT[FK\U CP\U AGENTCYCONTACTS\U Case\U PHTSY]外键（[Case\U PHTSYId]）更改表[dbo]。[CP\U AGENTCYCONTACTS]
参考文献[dbo]。[Case_PHTSY]（[Id]）
关于删除级联
不适用于复制
去
ALTER TABLE[dbo].[CP\U AGENTCYCONTACTS]检查约束[FK\U CP\U AGENTCYCONTACTS\U Case\U PHTSY]
使用NOCHECK添加约束[FK\U CP\U BARGERS\U Case\U PHTSY]外键（[Case\U PHTSYId]）更改表[dbo]。[CP\U BARGERS]
参考文献[dbo]。[Case_PHTSY]（[Id]）
关于删除级联
不适用于复制
去
ALTER TABLE[dbo].[CP\U BARGERS]检查约束[FK\U CP\U BARGERS\U Case\U PHTSY]
更改表[dbo]。[CP\U DischargeActivities]，不选中添加约束[FK\U CP\U DischargeActivities\U Case\U PHTSY]外键（[Case\U PHTSYId]）
参考文献[dbo]。[Case_PHTSY]（[Id]）
关于删除级联
不适用于复制
去
ALTER TABLE[dbo].[CP_DischargeActivities]检查约束[FK_CP_DischargeActivities_Case_PHTSY]
去
modelBuilder.Entity（）；
modelBuilder.Entity（）；
modelBuilder.Entity（）.HasMany（r=>r.DischargeActivities）.WithOptional（）.HasForeignKey（k=>k.Case\u PhstsyId）；
modelBuilder.Entity（）；
modelBuilder.Entity（）；
modelBuilder.Entity（）.HasMany（o=>o.DischargeActivities）.WithOptional（）.HasForeignKey（k=>k.Case\u PhstsyId）；
modelBuilder.Entity（）.has可选（o=>o.F_FamilyHistory）.WithRequired（）；
modelBuilder.Entity（）.HasMany（o=>o.PHTSY\u censucodes）。with optional（）.HasForeignKey（k=>k.Case\u PHTSYId）；
主表：
创建表[dbo]。[Case_PHTSY](
[Id][int]标识（5000,1）不用于复制不为空，
[FamilyHistoryID][int]NULL，
[IntensityNHours][smallint]NULL，
[IEPRequested][bit]空约束[DF_Case_PHTSY_IEPRequested]默认值（0），
...
[bundet][bit]空，
约束[PK_Case_PHTSY]主键群集
(
[Id]ASC
)在[主]上打开（PAD\u INDEX=OFF，STATISTICS\u norecocomputer=OFF，IGNORE\u DUP\u KEY=OFF，ALLOW\u ROW\u LOCKS=ON，ALLOW\u PAGE\u LOCKS=ON）
)在[小学]
去
将ANSI_填充设置为关闭
去
使用NOCHECK添加约束[FK_Case_PHTSY_F_FamilyHistory]外键（[FamilyHistoryID]）更改表[dbo]。[Case_PHTSY]
参考文献[dbo]。[F_FamilyHistory]（[FamilyHistoryID]）
关于删除级联
不适用于复制
去
ALTER TABLE[dbo].[Case_PHTSY]检查约束[FK_Case_PHTSY_F_FamilyHistory]
去
使用检查添加约束[FK_Case_PHTSY_Persons]外键（[CaseChildID]）更改表[dbo].[Case_PHTSY]
参考文献[dbo].[Persons]（[PersonID]）
去
ALTER TABLE[dbo].[Case\U PHTSY]检查约束[FK\U Case\U PHTSY\U PERSONERS]
创建表[dbo]。[CP_实际值](
[Id][int]标识（1,1）不为空，
[Case_PHTSYId][int]不为空，
[DischargeDate][datetime]空，
约束[PK_CP_ActualDischarge]主键群集
(
[Id]ASC
)在[主]上打开（PAD\u INDEX=OFF，STATISTICS\u norecocomputer=OFF，IGNORE\u DUP\u KEY=OFF，ALLOW\u ROW\u LOCKS=ON，ALLOW\u PAGE\u LOCKS=ON）
)在[小学]
去
将ANSI_填充设置为关闭
去
使用NOCHECK添加约束[FK_CP_ActualDischarge_Case_PHTSY]外键（[Case_PHTSYId]）更改表[dbo]。[CP_ActualDischarge]
参考文献[dbo]。[Case_PHTSY]（[Id]）
关于删除级联
不适用于复制
去
ALTER TABLE[dbo].[CP_ActualDischarge]检查约束[FK_CP_ActualDischarge_Case_PHTSY]
创建表[dbo]。[CP\U AgencyContacts](
[AgencyContactID][int]标识（1,1）不用于复制不为空，
[Case_PHTSYId][int]不为空，
[AgencyType][int]NULL，
[机构][int]NULL，
约束[PK\U Case\U PHTSY\U AgencyContacts]主键群集
(
[AgencyContactID]ASC
)在[主]上打开（PAD\u INDEX=OFF，STATISTICS\u norecocomputer=OFF，IGNORE\u DUP\u KEY=OFF，ALLOW\u ROW\u LOCKS=ON，ALLOW\u PAGE\u LOCKS=ON）
)在[小学]
去
将ANSI_填充设置为关闭
去
使用NOCHECK ADD CONSTRAINT[FK\U CP\U AGENTCYCONTACTS\U Case\U PHTSY]外键（[Case\U PHTSYId]）更改表[dbo]。[CP\U AGENTCYCONTACTS]
参考文献[dbo]。[Case_PHTSY]（[Id]）
关于删除级联
不适用于复制
去
ALTER TABLE[dbo].[CP\U AGENTCYCONTACTS]检查约束[FK\U CP\U AGENTCYCONTACTS\U Case\U PHTSY]

只花了大约一个小时的时间，但我通过另一个回复的提示找到了解决方案。其缺点是EntityFramework对某些关系感到困惑（或者我使用fluent表达式的描述是错误的）

最后，我咬紧牙关，清理了数据库中一些列的名称，使它们成为“常规”，即tableName+Id删除了我的fluent表达式，并成功了

我还取出了一个表上的复合键，添加了一个Id字段，并将复合键改为唯一索引

我希望这对其他人有帮助

我还证实了我的怀疑，当使用SQL服务时

 public partial class Case_Person_RD1
{
    public virtual C_Role C_Role { get; set; }

    public virtual Case_PHTSY Case_PHTSY { get; set; }
}

    ALTER TABLE [dbo].[CP_ActualDischarge]  WITH NOCHECK ADD  CONSTRAINT         [FK_CP_ActualDischarge_Case_PHTSY] FOREIGN KEY([Case_PHTSYId])
    REFERENCES [dbo].[Case_PHTSY] ([Id])
    ON DELETE CASCADE
    NOT FOR REPLICATION 
    GO
    ALTER TABLE [dbo].[CP_ActualDischarge] CHECK CONSTRAINT [FK_CP_ActualDischarge_Case_PHTSY]

    ALTER TABLE [dbo].[CP_AgencyContacts]  WITH NOCHECK ADD  CONSTRAINT         [FK_CP_AgencyContacts_Case_PHTSY] FOREIGN KEY([Case_PHTSYId])
    REFERENCES [dbo].[Case_PHTSY] ([Id])
    ON DELETE CASCADE
    NOT FOR REPLICATION 
    GO
ALTER TABLE [dbo].[CP_AgencyContacts] CHECK CONSTRAINT [FK_CP_AgencyContacts_Case_PHTSY]

    ALTER TABLE [dbo].[CP_Barriers]  WITH NOCHECK ADD  CONSTRAINT     [FK_CP_Barriers_Case_PHTSY] FOREIGN KEY([Case_PHTSYId])
REFERENCES [dbo].[Case_PHTSY] ([Id])
ON DELETE CASCADE
NOT FOR REPLICATION 
GO
ALTER TABLE [dbo].[CP_Barriers] CHECK CONSTRAINT [FK_CP_Barriers_Case_PHTSY]

ALTER TABLE [dbo].[CP_DischargeActivities]  WITH NOCHECK ADD  CONSTRAINT [FK_CP_DischargeActivities_Case_PHTSY] FOREIGN KEY([Case_PHTSYId])
REFERENCES [dbo].[Case_PHTSY] ([Id])
ON DELETE CASCADE
NOT FOR REPLICATION 
GO
ALTER TABLE [dbo].[CP_DischargeActivities] CHECK CONSTRAINT [FK_CP_DischargeActivities_Case_PHTSY]
GO


        modelBuilder.Entity<Case_PHTSY>().HasMany(c => c.AgencyContacts).WithOptional().HasForeignKey(k => k.Case_PHTSYId);
            modelBuilder.Entity<Case_PHTSY>().HasMany(c => c.Barriers).WithOptional().HasForeignKey(k => k.Case_PHTSYId);
            modelBuilder.Entity<Case_PHTSY>().HasMany(r => r.DischargeActivities).WithOptional().HasForeignKey(k => k.Case_PhstsyId);
            modelBuilder.Entity<Case_PHTSY>().HasMany(c => c.Roles).WithOptional().HasForeignKey(k => k.Case_PHTSYId);
            modelBuilder.Entity<Case_PHTSY>().HasMany(m => m.Case_Person_RD1s).WithOptional().HasForeignKey(k => k.Case_PhtsyId);
            modelBuilder.Entity<Case_PHTSY>().HasMany(o => o.DischargeActivities).WithOptional().HasForeignKey(k => k.Case_PhstsyId);
            modelBuilder.Entity<Case_PHTSY>().HasOptional(o => o.F_FamilyHistory).WithRequired();
            modelBuilder.Entity<Case_PHTSY>().HasMany(o => o.PHTSY_CensusCodes).WithOptional().HasForeignKey(k => k.Case_PHTSYId);



the primary table: 
CREATE TABLE [dbo].[Case_PHTSY](
    [Id] [int] IDENTITY(5000,1) NOT FOR REPLICATION NOT NULL,
    [FamilyHistoryID] [int] NULL,   
    [IntensityNHours] [smallint] NULL,
    [IEPRequested] [bit] NULL CONSTRAINT [DF_Case_PHTSY_IEPRequested]  DEFAULT (0),
    ...
    [Kidnet] [bit] NULL,
 CONSTRAINT [PK_Case_PHTSY] 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]

GO
SET ANSI_PADDING OFF
GO
ALTER TABLE [dbo].[Case_PHTSY]  WITH NOCHECK ADD  CONSTRAINT [FK_Case_PHTSY_F_FamilyHistory] FOREIGN KEY([FamilyHistoryID])
REFERENCES [dbo].[F_FamilyHistory] ([FamilyHistoryID])
ON DELETE CASCADE
NOT FOR REPLICATION 
GO
ALTER TABLE [dbo].[Case_PHTSY] CHECK CONSTRAINT [FK_Case_PHTSY_F_FamilyHistory]
GO
ALTER TABLE [dbo].[Case_PHTSY]  WITH CHECK ADD  CONSTRAINT [FK_Case_PHTSY_Persons] FOREIGN KEY([CaseChildID])
REFERENCES [dbo].[Persons] ([PersonID])
GO
ALTER TABLE [dbo].[Case_PHTSY] CHECK CONSTRAINT [FK_Case_PHTSY_Persons]

CREATE TABLE [dbo].[CP_ActualDischarge](
    [Id] [int] IDENTITY(1,1) NOT NULL,
    [Case_PHTSYId] [int] NOT NULL,
    [DischargeDate] [datetime] NULL,

 CONSTRAINT [PK_CP_ActualDischarge] 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]

GO
SET ANSI_PADDING OFF
GO
ALTER TABLE [dbo].[CP_ActualDischarge]  WITH NOCHECK ADD  CONSTRAINT [FK_CP_ActualDischarge_Case_PHTSY] FOREIGN KEY([Case_PHTSYId])
REFERENCES [dbo].[Case_PHTSY] ([Id])
ON DELETE CASCADE
NOT FOR REPLICATION 
GO
ALTER TABLE [dbo].[CP_ActualDischarge] CHECK CONSTRAINT [FK_CP_ActualDischarge_Case_PHTSY]

CREATE TABLE [dbo].[CP_AgencyContacts](
    [AgencyContactID] [int] IDENTITY(1,1) NOT FOR REPLICATION NOT NULL,
    [Case_PHTSYId] [int] NOT NULL,
    [AgencyType] [int] NULL,
    [Agency] [int] NULL,
 CONSTRAINT [PK_Case_PHTSY_AgencyContacts] PRIMARY KEY CLUSTERED 
(
    [AgencyContactID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
SET ANSI_PADDING OFF
GO
ALTER TABLE [dbo].[CP_AgencyContacts]  WITH NOCHECK ADD  CONSTRAINT [FK_CP_AgencyContacts_Case_PHTSY] FOREIGN KEY([Case_PHTSYId])
REFERENCES [dbo].[Case_PHTSY] ([Id])
ON DELETE CASCADE
NOT FOR REPLICATION 
GO
ALTER TABLE [dbo].[CP_AgencyContacts] CHECK CONSTRAINT [FK_CP_AgencyContacts_Case_PHTSY]