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PO.net ORM Comparison
 

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    <p>I was talking with someone about the Entity Framework, and I'm not really into it yet, but I'd like to learn it. However, I'm still kinda confused whether I should learn it or not. I've heard a lot of people saying you shouldn't use the entity framwork, however I haven't heared any arguments why that is.</p> <p>So my question is, what are the pro's and con's of using the Entity Framework <a href="https://stackoverflow.com/questions/1841555/what-are-some-good-entity-framework-alternatives">compared to other products</a>. Like</p> <ul> <li>NHibernate</li> <li>DataObjects.Net</li> <li>etc..</li> </ul> <p>In terms of ease of use, testability, semantics...</p> <p>I know there are some <a href="https://stackoverflow.com/questions/662231/entity-framework-vs-alternatives">duplicate</a> <a href="https://stackoverflow.com/questions/3505/what-are-your-favorite-net-object-relational-mappers-orm">questions</a> about this. But they are all kinda outdated (2008,2009) and to be honest, the arguments are also lacking something. I know Entity Framework 4.0 is available, and I haven't found a good (complete) comparison yet. </p> <hr> <h1>Answers</h1> <p>Some of the nice people here have answered my question by explaining some details on the different frameworks. Thought it might be good to show them here for future reference. </p> <ul> <li><a href="https://stackoverflow.com/questions/5101974/net-orm-comparison/5102461#5102461">J. Tihon has made an excelent post explaining how to make the EF work when you need more extensibility.</a> </li> <li><a href="https://stackoverflow.com/questions/5101974/net-orm-comparison/5105917#5105917">Diego Mijelshon has created an answer with some of the pitfalls of EF and how NHibernate solves them.</a> </li> </ul>
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    1. COpossible duplicate of [nhibernate, entity framework, active records or linq2sql](http://stackoverflow.com/questions/1377236/nhibernate-entity-framework-active-records-or-linq2sql)
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    2. COExcept that one was from sep '09, and much has changed in EF
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    3. COMy answer to that question was updated in June 2010 and not much has changed with EF4 or other ORMs since then. In any event, you aren't supposed to create duplicate questions just because you want fresher answers.
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