I'm trying to complete the doing "Optimizing the Calculator" (in Chapter 5: Programming your ASP.Net Web Pages) try it out exercise.

When Calculator.cs is saved to the root of the Solution, it works fine. However, when it is placed in the App_Code folder, it is not recoginized.

Ideas?

Note: I am doing this in an existing Solution that I use for testing. I do not have a demo folder as is referenced by the book's examples.

Hi there,

Sounds like you're using a web application (File | New Project) rather than a Web Site Project (File | New Web Site). App_Code is not supported in a web application. In a WAP you can place code files anywhere except in App_Code.

Hope this helps...

Cheers,

Imar

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Imar Spaanjaars
http://Imar.Spaanjaars.Com
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Author of Beginning ASP.NET 4.5 : in C# and VB, Beginning ASP.NET Web Pages with WebMatrix
and Beginning ASP.NET 4 : in C# and VB.
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