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Editorial Team
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Asked: 2026-05-29T10:34:55+00:00

[Environment] Windows 7 Ultra VS 2010 Ultra Entity Framework 4.2 Entity Framework Power Tool

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[Environment]

  • Windows 7 Ultra
  • VS 2010 Ultra
  • Entity Framework 4.2
  • Entity Framework Power Tool CTP1

[Details]:

I’m doing some exercises about EF Code-First. During doing it with local server of SQL Sever 2008 Express, the EF Power Tool can display the entity data model diagram. it works well.

After I define a connectionstring in app.config to connect a LAN server of SQL Server 2008, view the entity data model again. The EF Power Tool shows me a dialog of error HResult 0x000xxxx. By running the application, it rebuilds the tables in database as I expect.

I found a comment in the page of downloading EF Power Tool CTP1. The Devart team gets the problem like me.

http://visualstudiogallery.msdn.microsoft.com/72a60b14-1581-4b9b-89f2-846072eff19d?SRC=VSIDE

[Question]:

  1. Is any tool like the EF Power Tool to create data model diagram with POCOs and DbContext?

  2. How to do to fix the problem above?

THX

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1 Answer

  1. Editorial Team

    1. Unlike EF Power Tool, Devart Entity Developer allows you to create data model diagram with POCOs and DbContext at design time initially. Please take a look at this article.

    2. Since there is the problem with usage of existing DbContext with connection string from the *.config file, you can be interested in generating Code-First fluent mapping by Devart Entity Developer.
      However, if you are going to use EF Power Tool, please take a look at this article.

    Devart Team

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