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Extension Method to Correctly Close WCF Connections When Faults Occur

/ Published in: C#
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Shows how to generically handle fault exceptions in WCF Services which prevent you relying on using() {} to dispose of the connection.

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  1. namespace WcfChannelExtensions
  2. {
  3.     /// <summary>
  4.     /// Provides extension methods for WCF Service Channels
  5.     /// </summary>
  6.     public static class WcfChannelExtensions
  7.     {
  8.         /// <summary>
  9.         /// Make WCF service calls without needing to worry about disposing of underlying connection when Faults occur.
  10.         /// </summary>
  11.         /// <typeparam name="T">The channel</typeparam>
  12.         /// <param name="client">The service.</param>
  13.         /// <param name="work">Code to execute.</param>
  14.         /// <example>new ChannelFactory<IFooContract>().CreateChannel().SafeInvoke(service =>
  15.         /// {
  16.         ///     service.Foo();
  17.         /// });</example>
  18.         public static void SafeInvoke<T>(this T client, Action<T> work) where T : ICommunicationObject
  19.         {
  20.             try
  21.             {
  22.                 client.Open();
  23.                 work(client);
  24.                 client.Close();
  25.             }
  26.             catch
  27.             {
  28.                 client.Abort();
  29.                 throw;
  30.             }
  31.         }
  32.     }
  33. }

URL: http://www.sage.co.uk/devblog

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