asp.net - Getting configuration settings from web.config/app.config using class library

Configuration settings in 3.5 is driving me nuts... Help! ;)

I have a class library (Named ADI), that needs some configuration settings from the project using it (like connectionstring, filesystem locations etc).

I want to define these settings in my Windows Forms/Web Projects App.Config or Web.Config, like other settings.

Here is part of my app.config for my windows forms application:

    
      
        C:\DataTemp\ADI\Original\
      
      
        C:\DataTemp\ADI\Variants\
      

    

How do I access that from my class library??

I tried this:

System.Configuration.ConfigurationManager.AppSettings("ADIImageVariantsRoot")

What to do?

Answer

If you're not after structured settings, the appSettings section just takes key-value pairs:

This will enable you to access them via the AppSettings dictionary:

ConfigurationManager.AppSettings["ADIImageVariantsRoot"]

As you would expect.

Alternatively, if you need more structure to your configuration (i.e. more than just strings, or a collection of settings), you can look into using a configuration section of your own, using a ConfigurationSection, and its relevant parts.