EntityFrameworkã§ã‚¨ãƒ©ãƒ¼ | Manabin 's LifelogEntityFramewokã‚’ã„ã˜ã£ã¦ã„ãŸã¨ã“ã‚例外ãŒã‚¹ãƒãƒ¼ã•ã‚ŒãŸã®ã§ãã®ã¨ãã®ãƒ¡ãƒ¢ã€‚ System.InvalidOperationException ã¯ãƒãƒ³ãƒ‰ãƒ«ã•ã‚Œã¾ã›ã‚“ã§ã—ãŸã€‚ Message=1 ã¤ã®ã‚¨ãƒ³ãƒ†ã‚£ãƒ†ã‚£ オブジェクトを IEntityChangeTracker ã®è¤‡æ•°ã®ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã§å‚ç…§ã™ã‚‹ã“ã¨ã¯ã§ãã¾ã›ã‚“。 Source=System.Data.Entity StackTrace: å ´æ‰€ System.Data.Objects.ObjectContext.VerifyContextForAddOrAttach(IEntityWrapper wrappedEntity) å ´æ‰€ System.Data.Objects.ObjectContext.AddSingleObject(EntitySet entitySet, IEntityWrapper wrappedEntity
Add data annotations to a class generated by entity framework
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Entity Framework 4ã§ã‚³ãƒ¼ãƒ‰ãƒ»ãƒ•ã‚¡ãƒ¼ã‚¹ãƒˆé–‹ç™º - ï¼ IT
Looking for a C#-REPL compatible for LINQ
Entity Framework ã®æ¦‚è¦ - ADO.NET
The database cannot be opened because it is version 782. This server supports version 706 and earlier. A downgrade path is not supported
Entity Framework Code First | densan-labs.net
連載：ADO.NET Entity Framework入門 - ï¼ IT
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Entity Framework ã®ä¿ºçš„ã¾ã¨ã‚ - ã—ã°ã‚„ん雑記
Amazon.co.jp: Code-first Development With Entity Framework: Barskiy, Sergey: 本
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