mcs/class/referencesource/System.ServiceModel/System/ServiceModel/Configuration/TransactionProtocolConverter.cs

   1 //-----------------------------------------------------------------------------
   2 // Copyright (c) Microsoft Corporation.  All rights reserved.
   3 //-----------------------------------------------------------------------------
   4
   5 namespace System.ServiceModel.Configuration
   6 {
   7     using System;
   8     using System.ComponentModel;
   9     using System.ComponentModel.Design.Serialization;
  10     using System.Globalization;
  11
  12     class TransactionProtocolConverter : TypeConverter
  13     {
  14         public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)
  15         {
  16             if (typeof(string) == sourceType)
  17             {
  18                 return true;
  19             }
  20             return base.CanConvertFrom(context, sourceType);
  21         }
  22
  23         public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType)
  24         {
  25             if (typeof(InstanceDescriptor) == destinationType)
  26             {
  27                 return true;
  28             }
  29             return base.CanConvertTo(context, destinationType);
  30         }
  31
  32         public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
  33         {
  34             string protocol = value as string;
  35 #pragma warning suppress 56507 // Microsoft, Really checking for null (meaning value was not a string) versus String.Empty
  36             if (protocol != null)
  37             {
  38                 switch (protocol)
  39                 {
  40                     case ConfigurationStrings.OleTransactions:
  41                         return TransactionProtocol.OleTransactions;
  42                     case ConfigurationStrings.WSAtomicTransactionOctober2004:
  43                         return TransactionProtocol.WSAtomicTransactionOctober2004;
  44                     case ConfigurationStrings.WSAtomicTransaction11:
  45                         return TransactionProtocol.WSAtomicTransaction11;
  46                     default:
  47                         throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument(SR.GetString(SR.ConfigInvalidTransactionFlowProtocolValue, protocol));
  48                 }
  49             }
  50             return base.ConvertFrom(context, culture, value);
  51         }
  52
  53         public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
  54         {
  55             if (typeof(string) == destinationType && value is TransactionProtocol)
  56             {
  57                 TransactionProtocol protocol = (TransactionProtocol)value;
  58                 return protocol.Name;
  59             }
  60             return base.ConvertTo(context, culture, value, destinationType);
  61         }
  62     }
  63 }