Tip #26: Did you know... How to have C# and VB.NET files inside your App_Code directory?

If you are taking advantage of the App_Code folder to develop an ASP.NET WebSite some times you need to use code files that are written in different .NET languages. For example, you may want to use C# files and VB.NET files in the same web site:

To be able to do this you can use a feature of the compilation section in web.config to configure sub folders inside App_Code to be compiled separately.

 <compilation debug="true">
    <codeSubDirectories>
        <add directoryName="VBFiles" />
    </codeSubDirectories>
</compilation>

Federico Silva Armas 
SDET, ASP.NET QA Team

Comments

• Anonymous
  November 21, 2008
  PingBack from http://mstechnews.info/2008/11/tip-26-did-you-know-how-to-have-c-and-vbnet-files-inside-your-app_code-directory/

• Anonymous
  November 21, 2008
  But can you call code between them?  In other words, if I have a class in my C# code, can you call it from the VB.NET code.  I assumed the answer was "yes" but still haven't found a solution.

• Anonymous
  November 21, 2008
  Can this be used with Web Application Projects?

• Anonymous
  November 22, 2008
  JoeReynolds, no, it's just for websites, not web applications

• Anonymous
  January 05, 2009
  Following are few methods: http://quickstarts.asp.net/QuickStartv20/aspnet/doc/pages/code.aspx