c# - ConfigurationManager.AppSettings getting null?

Question

I did not realize that: 'have a web.config in a separate class library and' was reading the web.config app setting from different web application.

I am using VS2010 target framework 3.5

I don't know what is wrong here but I am getting null when I try to get ConfigurationManager.AppSettings["StoreId"];

private string _storeid = GetStoreId;

public static string GetStoreId
{
    get
    {
        return ConfigurationManager.AppSettings["StoreId"];
    }
}

web.config:

<appSettings>
    <add key="StoreId" value="123" />
</appSettings>

Answer 1

If you are UNIT TESTING you need A COPY of the APP.CONFIG inside the UNIT TEST PROJECT