Hello people, Can somebody tell me how can I use ConfigurationManager? What using assembly should I declare?

There is very useful article which features I want to use in my code but my express edition is unable to recognize ConfigurationManager, ConnectionStringSettings,...

How to solve this?

What version of express are you using?
ConfigurationManager should be in the System.Configuration.dll.

Bug in VS 2008?
Use using System.Configuration; And try ConfigurationSettings instead.

ok, I've got answer, I was missing project/add reference/system.configuration...

Happy programming.