c# - App_Code "Add Class" Greyed Out

Question

I'm new to developing web applications, so I'm not sure if I'm going about this properly. What I'm trying to do is create a C# class with some common functions that my ASPX.CS classes can inherit from, to eliminate redundant code.

I've added an App_Code folder to my project's root directory. When I right-click on that folder in Visual Studio's Solution Explorer, then select Add, the Class option is greyed out.

Likewise, if I create a class from File > New > File, then manually put it into the App_Code folder, it's inaccessible. It'll be visible if I select Show All Files in the Solution Explorer, but right-clicking on it has Include in Project greyed-out too.

How do I create a class that my other ASPX.CS classes can inherit from?

Answer 1

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