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

  1. //------------------------------------------------------------------------------
  2. // <copyright file="PositiveTimeSpanValidator.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. using System;
  16. using System.Configuration;
  17. using System.ComponentModel;
  18. namespace System.Configuration
  19. {
  20.    
  21.     public class PositiveTimeSpanValidator : ConfigurationValidatorBase
  22.     {
  23.         public override bool CanValidate(Type type)
  24.         {
  25.             return (type == typeof(TimeSpan));
  26.         }
  27.         public override void Validate(object value)
  28.         {
  29.             if (value == null) {
  30.                 throw new ArgumentNullException("value");
  31.             }
  32.            
  33.             if (((TimeSpan)value) <= TimeSpan.Zero) {
  34.                 throw new ArgumentException(SR.GetString(SR.Validator_timespan_value_must_be_positive));
  35.             }
  36.         }
  37.     }
  38. }

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