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Custom config returns NULL section despite "proper" definition

Posted By:      Posted Date: October 12, 2010    Points: 0   Category :.NET Framework

I have defined a custom config section but when I try to get the section, it's always null.

I can't see what I'm missing. The only thing that I can might be an issue is that the code is part of a library project ina a solution with a main project, so not sure if the app.config has to be under the main project instead.

Below is my code, any ideas?

    public class CustomConfiguration : ConfigurationSection
        [ConfigurationProperty("keys", IsRequired = false)]
        public KeyCollection Keys
                return this["keys"] as KeyCollection;

    public class Key : ConfigurationElement
        [ConfigurationProperty("name", IsRequired = false)]
        public string Name
                return this["name"] as string;

        [ConfigurationProperty("value", IsRequired = false)]
        public string Value
                return this["value"] as string;

    public class KeyCollection : ConfigurationElementCollection
        public Key this[int index]
                return base.Base

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