public static class ExceptionExtensions
   {
      public static IEnumerable<Exception> GetAllExceptions(this Exception ex)
      {
         Exception currentEx = ex;
         yield return currentEx;
         while (currentEx.InnerException != null)
         {
            currentEx = currentEx.InnerException;
            yield return currentEx;
         }
      }

      public static IEnumerable<string> GetAllExceptionAsString(this Exception ex)
      {
         Exception currentEx = ex;
         yield return currentEx.ToString();
         while (currentEx.InnerException != null)
         {
            currentEx = currentEx.InnerException;
            yield return currentEx.ToString();
         }
      }

      public static IEnumerable<string> GetAllExceptionMessages(this Exception ex)
      {
         Exception currentEx = ex;
         yield return currentEx.Message;
         while (currentEx.InnerException != null)
         {
            currentEx = currentEx.InnerException;
            yield return currentEx.Message;
         }
      }
   }

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