File: System\Configuration\Internal\IInternalConfigSystem.cs
Project: ndp\fx\src\Configuration\System.Configuration.csproj (System.Configuration)
// <copyright file="IInternalConfigSystem.cs" company="Microsoft">
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// </copyright>
using System;
using System.IO;
using System.Security;
using System.Collections.Specialized;
using System.Configuration;
using ClassConfiguration=System.Configuration.Configuration;
// This file contains most of the interfaces that allow System.Web, Venus, and 
// Whitehorse to customize configuration in some way.
// The goal of the design of customization is to only require other MS assemblies
// to create an instance of an internal object via Activator.CreateInstance(), and then
// use these objects through *public* System.Configuration.Internal interfaces. 
// We do not want extenders to have to use reflection to call a method - it is slow,
// not typesafe, and more difficult to promote correct use of the internal object.
namespace System.Configuration.Internal {
    // Methods called by ConfigurationSettings on the configuration system.
    public interface IInternalConfigSystem {
        // Returns the config object for the specified key.
        // It's actually GetSection
        object GetSection(string configKey);
        // Refreshes the configuration system.
        // It's actually RefreshSection
        void RefreshConfig(string sectionName);
        // Supports user config
        bool SupportsUserConfig {get;}