Question

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:

<applicationSettings>     <PhotoImportRobot.My.MySettings>       <setting name='ADIImageRoot' serializeAs='String'>         <value>C:\DataTemp\ADI\Original\</value>       </setting>       <setting name='ADIImageVariantsRoot' serializeAs='String'>         <value>C:\DataTemp\ADI\Variants\</value>       </setting>     </PhotoImportRobot.My.MySettings> </applicationSettings> 

How do I access that from my class library??

I tried this:

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

What to do?

Answer 1

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

<appSettings>   <add key='ADIImageRoot' value='C:\DataTemp\ADI\Original\' />   <add key='ADIImageVariantsRoot' value='C:\DataTemp\ADI\Variants\' /> </appSettings> 

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.