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EntityFramework 4.1 Problem RRS feed

  • Question

  • User-1942416292 posted

    Sorry I don't know where to post.

    I have table Users(ID,Name), Roles(ID,Name), UserRoles(UserID,RoleID)

    with UserID and RoleID is Primary Key and Foreign Key with Users,Rolers

    I try to make a Model like this code but it always fire errors.

     public class Users
        {
            public int UserID { getset; }
            public string Username { getset; }
            public string Password { getset; }
     
            public ICollection<UserRoles> UserRoles { getset; }
     
        }
     
        public class Roles
        {
            public int RoleID { getset; }
            public string RoleName { getset; }
     
            public ICollection<UserRoles> UserRoles { getset; }
        }
     
        public class UserRoles
        {
            [Key,ForeignKey("UserID")]
            [Column(Order=0)]
            public int UserID { getset; }
            [KeyForeignKey("RoleID")]
            [Column(Order = 1)]
            public int RoleID { getset; }
     
            public virtual Users User { getset; }
            public virtual Roles Role { getset; }
        }

    Somebody help me Thanks !

    Sunday, March 20, 2011 12:05 PM

Answers

All replies

  • User-330204900 posted

    Can you post the error and also can you let us know what DataModel you are using and if you are using Dynamic Data please.

    Sunday, March 20, 2011 12:43 PM
  • User-1942416292 posted

    base {System.SystemException} = {"The navigation property 'UserID' is not a declared property on type 'UserRoles'. Verify that it has not been explicitly excluded from the model and that it is a valid navigation property."}

     

    This is my Errors. Thanks for your reply

    Monday, March 21, 2011 1:37 AM
  • User-330204900 posted

    Hi LoveData21, I just remembered is youy are using EF then table UserRoles will become a relationship rather than a table and so will not exist, have a look in the designer.

    Monday, March 21, 2011 6:56 AM
  • User443262777 posted

    <!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:TrackMoves /> <w:TrackFormatting /> <w:PunctuationKerning /> <w:ValidateAgainstSchemas /> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:DoNotPromoteQF /> <w:LidThemeOther>EN-US</w:LidThemeOther> <w:LidThemeAsian>X-NONE</w:LidThemeAsian> <w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript> <w:Compatibility> <w:BreakWrappedTables /> <w:SnapToGridInCell /> <w:WrapTextWithPunct /> <w:UseAsianBreakRules /> <w:DontGrowAutofit /> <w:SplitPgBreakAndParaMark /> <w:DontVertAlignCellWithSp /> <w:DontBreakConstrainedForcedTables /> <w:DontVertAlignInTxbx /> <w:Word11KerningPairs /> <w:CachedColBalance /> </w:Compatibility> <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel> <m:mathPr> <m:mathFont m:val="Cambria Math" /> <m:brkBin m:val="before" /> <m:brkBinSub m:val=" " /> 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    Thank you. I have two questions

    1. Is there a 4.1 framework already?
    2. Wouldn’t be enough to declare the missing navigation property in the MetaData file as always?
    Monday, March 21, 2011 12:22 PM
  • User-330204900 posted

    there is an RC of Entity Framework 4.1 (which includes EF Code First), which ScottGu posted about. This has a Go-Live lisence.

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Monday, March 21, 2011 2:06 PM