The Labs \ Source Viewer \ SSCLI \ System.Configuration \ SettingsProviderCollection

  1. //------------------------------------------------------------------------------
  2. // <copyright file="SettingsProviderCollection.cs" company="Microsoft">
  3. //
  4. // Copyright (c) 2006 Microsoft Corporation. All rights reserved.
  5. //
  6. // The use and distribution terms for this software are contained in the file
  7. // named license.txt, which can be found in the root of this distribution.
  8. // By using this software in any fashion, you are agreeing to be bound by the
  9. // terms of this license.
  10. //
  11. // You must not remove this notice, or any other, from this software.
  12. //
  13. // </copyright>
  14. //------------------------------------------------------------------------------
  15. namespace System.Configuration
  16. {
  17.     using System.Collections.Specialized;
  18.     using System.Runtime.Serialization;
  19.     using System.Configuration.Provider;
  20.    
  21.     ////////////////////////////////////////////////////////////
  22.     ////////////////////////////////////////////////////////////
  23.     ////////////////////////////////////////////////////////////
  24.     public class SettingsProviderCollection : ProviderCollection
  25.     {
  26.         public override void Add(ProviderBase provider)
  27.         {
  28.             if (provider == null) {
  29.                 throw new ArgumentNullException("provider");
  30.             }
  31.            
  32.             if (!(provider is SettingsProvider)) {
  33.                 throw new ArgumentException(SR.GetString(SR.Config_provider_must_implement_type, typeof(SettingsProvider).ToString()), "provider");
  34.             }
  35.            
  36.             base.Add(provider);
  37.         }
  38.        
  39.         public new SettingsProvider this[string name]
  40.         {
  41.             get { return (SettingsProvider)base[name]; }
  42.         }
  43.     }
  44. }

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