Read connection string from web.config

Question

How can I read a connection string from a web.config file into a public class contained within a class library?

I've tried:

WebConfigurationManager

ConfigurationManager

But these classes are not recognized within my class library.

Answer 1

You need to add a reference to System.Configuration and then use:

System.Configuration.ConfigurationManager.
    ConnectionStrings["connectionStringName"].ConnectionString;