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POEntity Framework 4 with SQL CE 4 Problem
 

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    <p>I created a entity framework 4.0 application by creating a model. The SQL Server Compact edition 4.0 database is created with <a href="https://stackoverflow.com/questions/5205280/entity-framework-4-and-sql-compact-4-how-to-generate-database">this trick</a>. </p> <p>Now I finished all my code for importing the initial data into my database (Adding elements works fine). But if I try to access the elements via</p> <pre><code> Context context = new Context(); foreach (var c in context.Customers) // Exception { System.Diagnostics.Debug.Print(c.ToString()); } </code></pre> <p>it throws an exception at the start of the foreach loop:</p> <pre><code>[A]System.Data.SqlServerCe.SqlCeConnection cannot be cast to [B]System.Data.SqlServerCe.SqlCeConnection. Type A originates from 'System.Data.SqlServerCe, Version=4.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' in the context 'Default' at location 'C:\Windows\assembly\GAC_MSIL\System.Data.SqlServerCe\4.0.0.0__89845dcd8080cc91\ System.Data.SqlServerCe.dll'. Type B originates from 'System.Data.SqlServerCe, Version=3.5.1.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' in the context 'Default' at location 'C:\Windows\assembly\GAC_MSIL\System.Data.SqlServerCe\ 3.5.1.0__89845dcd8080cc91\System.Data.SqlServerCe.dll'. </code></pre> <p>I added these references to my application:</p> <pre><code>System.Data.Entity - 4.0 System.Data.SqlServerCe - 4.0 System.Data.SqlServerCe.Entity - 4.0 </code></pre> <p>Does anyone has an idea, what is wrong with my configuration? </p> <p><em>PS: I want to use SQL CE 4.0 because of the computed values. If I need to use 3.5, I need to change my architecture (Or is it possible to implement something like computed values inside the context class?).</em></p>
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