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我有一个名为 TBLFIRM 的数据库表。我正在使用 acc 数据库优先模型。EF 准备 sql 错误。这个对象有什么问题?

谢谢

我的语法,一个非常简单的调用:

TBLFIRM d = VT.TBLFIRMs.FirstOrDefault(p => p.ID > 0);

EF 5 准备的 SQL 语法

SELECT TOP (1) 
[Extent1].[ID] AS [ID], 
[Extent1].[DISTID] AS [DISTID], 
[Extent1].[SESSIONKEY] AS [SESSIONKEY], 
[Extent1].[NAME] AS [NAME], 
[Extent1].[PHONE] AS [PHONE], 
[Extent1].[EMAIL] AS [EMAIL], 
[Extent1].[CREATEUSER] AS [CREATEUSER], 
[Extent1].[CREATEDATE] AS [CREATEDATE], 
[Extent1].[UPDATEUSER] AS [UPDATEUSER], 
[Extent1].[UPDATEDATE] AS [UPDATEDATE], 
[Extent1].[AUTHORIZEDUSERNAME] AS [AUTHORIZEDUSERNAME], 
[Extent1].[AUTHORIZEDUSEREMAIL] AS [AUTHORIZEDUSEREMAIL], 
[Extent1].[AUTHORIZEDUSERPHONE] AS [AUTHORIZEDUSERPHONE], 
[Extent1].[SENDEMAIL] AS [SENDEMAIL], 
[Extent1].[REPLYEMAIL] AS [REPLYEMAIL], 
[Extent1].[ACTIVE] AS [ACTIVE], 
[Extent1].[CANLOGIN] AS [CANLOGIN], 
[Extent1].[INTERNALNAME] AS [INTERNALNAME], 
[Extent1].[TBLDISTRIBUTOR_ID] AS [TBLDISTRIBUTOR_ID]
FROM [dbo].[TBLFIRMs] AS [Extent1]
WHERE [Extent1].[ID] > 0

上下文类

public DbSet<TBLFIRM> TBLFIRMs { get; set; }

TBLFirm 类

 public partial class TBLFIRM
    {
        public TBLFIRM()
        {
            this.TBLFIRMSETTINGS = new HashSet<TBLFIRMSETTING>();
            this.TBLFIRMSMTPs = new HashSet<TBLFIRMSMTP>();
            this.TBLMAILFIRMMATCHes = new HashSet<TBLMAILFIRMMATCH>();
            this.TBLMAILGROUPs = new HashSet<TBLMAILGROUP>();
            this.TBLMAILTEMPLATEs = new HashSet<TBLMAILTEMPLATE>();
            this.TBLSCHEDULEs = new HashSet<TBLSCHEDULE>();
            this.TBLUSERGROUPs = new HashSet<TBLUSERGROUP>();
            this.TBLUSERS = new HashSet<TBLUSER>();
        }

        public int ID { get; set; }
        public int DISTID { get; set; }
        public string SESSIONKEY { get; set; }
        public string NAME { get; set; }
        public string PHONE { get; set; }
        public string EMAIL { get; set; }
        public string CREATEUSER { get; set; }
        public Nullable<System.DateTime> CREATEDATE { get; set; }
        public string UPDATEUSER { get; set; }
        public Nullable<System.DateTime> UPDATEDATE { get; set; }
        public string AUTHORIZEDUSERNAME { get; set; }
        public string AUTHORIZEDUSEREMAIL { get; set; }
        public string AUTHORIZEDUSERPHONE { get; set; }
        public string SENDEMAIL { get; set; }
        public string REPLYEMAIL { get; set; }
        public Nullable<bool> ACTIVE { get; set; }
        public Nullable<bool> CANLOGIN { get; set; }
        public string INTERNALNAME { get; set; }

        public virtual TBLDISTRIBUTOR TBLDISTRIBUTOR { get; set; }
        public virtual ICollection<TBLFIRMSETTING> TBLFIRMSETTINGS { get; set; }
        public virtual ICollection<TBLFIRMSMTP> TBLFIRMSMTPs { get; set; }
        public virtual ICollection<TBLMAILFIRMMATCH> TBLMAILFIRMMATCHes { get; set; }
        public virtual ICollection<TBLMAILGROUP> TBLMAILGROUPs { get; set; }
        public virtual ICollection<TBLMAILTEMPLATE> TBLMAILTEMPLATEs { get; set; }
        public virtual ICollection<TBLSCHEDULE> TBLSCHEDULEs { get; set; }
        public virtual ICollection<TBLUSERGROUP> TBLUSERGROUPs { get; set; }
        public virtual ICollection<TBLUSER> TBLUSERS { get; set; }
    }
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1 回答 1

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经过更深入的研究,我能够找到并解决问题,这要归功于 BRian Rogers @ Code First vs. Database First的回复。

如果您正在使用数据库或模型优先,则连接字符串必须具有元数据,否则 EF 会将其解释为代码优先方法。

当我从网站调用保存 EF 对象的库时,web.config 的连接字符串是一个普通的数据库连接。

<add name="EmmContext" connectionString="Data Source=.;Initial Catalog=GPMM;Persist Security Info=True;User ID=********;Pwd=******" providerName="System.Data.SqlClient"/>

改成之后

<add name="EmmContext" connectionString="metadata=res://*/DAL.DBModel.csdl|res://*/DAL.DBModel.ssdl|res://*/DAL.DBModel.msl;provider=System.Data.SqlClient;provider connection string=&quot;data source=.;initial catalog=GPMM;persist security info=True;user id=*******;password=********;MultipleActiveResultSets=True;App=EntityFramework&quot;" providerName="System.Data.EntityClient"/>

它就像一个魅力。

只是想分享这个特殊的经历。谢谢布赖恩·罗杰斯!:-)

于 2013-09-07T16:22:50.120 回答