Sharing an assembly between ASP.NET and Silverlight

Question

I've created an assembly to share it between my main app and the silverlight app. At the beginning it looked like it was going to work but now I get this exception: "System.IO.FileNotFoundException was caught, Message="Could not load file or assembly 'System.Xml.Linq". I'm using .NET 3.5 Sp1 and Silverlight 3.

That shared assembly uses System.Xml.Linq, and it cannot find it... I think because it is trying to find that version in the .NET framework instead looking in the silverlight one. How can I fix this?

Cheers.

PS: this is the full exception output:

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System.IO.FileNotFoundException was caught Message="Could not load file or assembly 'System.Xml.Linq, Version=2.0.5.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified." Source="MyApp.Metadata" FileName="System.Xml.Linq, Version=2.0.5.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" FusionLog="=== Pre-bind state information ===\\r\\nLOG: User = IIS APPPOOL\\DefaultAppPool\\r\\nLOG: DisplayName = System.Xml.Linq, Version=2.0.5.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35\\n (Fully-specified)\\r\\nLOG: Appbase = file:///C:/Users/vtortola.MyApp/Documents/MyApp/MyAppSAS/WebApplication1/WebApplication1/\\r\\nLOG: Initial PrivatePath = C:\\Users\\vtortola.MyApp\\Documents\\MyApp\\MyAppSAS\\WebApplication1\\WebApplication1\\bin\\r\\nCalling assembly : MyApp.Metadata, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null.\\r\\n===\\r\\nLOG: This bind starts in default load context.\\r\\nLOG: Using application configuration file: C:\\Users\\vtortola.MyApp\\Documents\\MyApp\\MyAppSAS\\WebApplication1\\WebApplication1\\web.config\\r\\nLOG: Using host configuration file: C:\\Windows\\Microsoft.NET\\Framework64\\v2.0.50727\\Aspnet.config\\r\\nLOG: Using machine configuration file from C:\\Windows\\ Microsoft.NET\\Framework64\\v2.0.50727\\config\\machine.config.\\r\\nLOG: Post-policy reference: System.Xml.Linq, Version=2.0.5.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35\\r\\nLOG: The same bind was seen before, and was failed with hr = 0x80070002.\\r\\n" StackTrace: at MyApp.Metadata.MyAppEntity.Deserialize(String message)

Answer 1

You must maintain two separate projects - one for desktop and for Silverlight. Have a look here for more information:

How can I use non-Silverlight assemblies in a Silverlight app?

You can share most of the code between projects (as in link files from one to another). Here is the Microsoft page that describes how to do exactly this:

http://msdn.microsoft.com/en-us/library/ff648215.aspx