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DiscoveryExceptionDictionary Class

Collects exceptions that occurred during XML Web services discovery. This class cannot be inherited.

Namespace:  System.Web.Services.Discovery
Assembly:  System.Web.Services (in System.Web.Services.dll)

'Declaration
Public NotInheritable Class DiscoveryExceptionDictionary _
	Inherits DictionaryBase
'Usage
Dim instance As DiscoveryExceptionDictionary

The Errors property of DiscoveryClientProtocol is of type DiscoveryExceptionDictionary.

Imports System
Imports System.Web.Services.Discovery
Imports System.Xml
Imports System.Collections
Imports System.Runtime.Remoting
Imports System.Net

Public Class MySample

   Shared Sub Main()
      Dim myDiscoFile As String = "http://localhost/MathService_vb.disco" 
      Dim myUrlKey As String = "http://localhost/MathService_vb.asmx?wsdl" 
      Dim myDiscoveryClientProtocol1 As New DiscoveryClientProtocol()
      Dim myDiscoveryDocument As DiscoveryDocument = myDiscoveryClientProtocol1.Discover(myDiscoFile)
      Dim myEnumerator As IEnumerator = myDiscoveryDocument.References.GetEnumerator()
      While myEnumerator.MoveNext()
         Dim myContractReference As ContractReference = CType(myEnumerator.Current, ContractReference)
         Dim myDiscoveryClientProtocol2 As DiscoveryClientProtocol = myContractReference.ClientProtocol
         myDiscoveryClientProtocol2.ResolveAll()
         Dim myExceptionDictionary As DiscoveryExceptionDictionary = myDiscoveryClientProtocol2.Errors
         If myExceptionDictionary.Contains(myUrlKey) = True Then
            Console.WriteLine("'myExceptionDictionary' contains " + _
                 "a discovery exception for the key '" + myUrlKey + "'")
         Else
            Console.WriteLine("'myExceptionDictionary' does not contain" + _
                 " a discovery exception for the key '" + myUrlKey + "'")
         End If 
         If myExceptionDictionary.Contains(myUrlKey) = True Then
            Console.WriteLine("System generated exceptions.")

            Dim myException As Exception = myExceptionDictionary(myUrlKey)
            Console.WriteLine(" Source : " + myException.Source)
            Console.WriteLine(" Exception : " + myException.Message)
            Console.WriteLine()

            ' Remove the discovery exception.for the key 'myUrlKey'.
            myExceptionDictionary.Remove(myUrlKey)
            Dim myNewExceptionDictionary As New DiscoveryExceptionDictionary()
            ' Add an exception with the custom error message. 
            Dim myNewException As New Exception("The requested service is not available.")
            myNewExceptionDictionary.Add(myUrlKey, myNewException)
            myExceptionDictionary = myNewExceptionDictionary
            Console.WriteLine("Added exceptions.")

            Dim myArray(myExceptionDictionary.Count -1 ) As Object
            myExceptionDictionary.Keys.CopyTo(CType(myArray, Array), 0)
            Console.WriteLine(" Keys are :")
            Dim myObj As Object
            For Each myObj In  myArray
               Console.WriteLine(" " + myObj.ToString())
            Next myObj
            Console.WriteLine()

            Dim myCollectionArray(myExceptionDictionary.Count -1 ) As Object
            myExceptionDictionary.Values.CopyTo(CType(myCollectionArray, Array), 0)
            Console.WriteLine(" Values are :")
            For Each myObj In  myCollectionArray
               Console.WriteLine(" " + myObj.ToString())
            Next myObj
         End If  
      End While 
   End Sub 'Main
End Class 'MySample
#using <mscorlib.dll>
#using <System.Xml.dll>
#using <System.Web.Services.dll>
#using <System.dll>
using namespace System;
using namespace System::Web::Services::Discovery;
using namespace System::Xml;
using namespace System::Collections;
using namespace System::Runtime::Remoting;
using namespace System::Net;

int main()
{
   String* myDiscoFile = S"http://localhost/MathService_cs.disco";
   String* myUrlKey = S"http://localhost/MathService_cs.asmx?wsdl";
   DiscoveryClientProtocol* myDiscoveryClientProtocol1 =
      new DiscoveryClientProtocol();
   DiscoveryDocument* myDiscoveryDocument =
      myDiscoveryClientProtocol1->Discover(myDiscoFile);
   IEnumerator* myEnumerator =
      myDiscoveryDocument->References->GetEnumerator();
   while ( myEnumerator->MoveNext() )
   {
      ContractReference* myContractReference =
         dynamic_cast<ContractReference*>(myEnumerator->Current);
      DiscoveryClientProtocol* myDiscoveryClientProtocol2 =
         myContractReference->ClientProtocol;
      myDiscoveryClientProtocol2->ResolveAll();
      DiscoveryExceptionDictionary* myExceptionDictionary
         = myDiscoveryClientProtocol2->Errors;
      if ( myExceptionDictionary->Contains(myUrlKey) == true )
      {
         Console::WriteLine(S"'myExceptionDictionary' contains a discovery exception for the key '{0}'", myUrlKey );
      }
      else
      {
         Console::WriteLine(S"'myExceptionDictionary' does not contain a discovery exception for the key '{0}'", myUrlKey );
      }
      if (myExceptionDictionary->Contains(myUrlKey) == true )
      {
         Console::WriteLine(S"System generated exceptions.");

         Exception* myException = myExceptionDictionary->Item[myUrlKey];
         Console::WriteLine(S" Source : {0}", myException->Source);
         Console::WriteLine(S" Exception : {0}", myException->Message);

         Console::WriteLine();

         // Remove the discovery exception.for the key 'myUrlKey'.
         myExceptionDictionary->Remove(myUrlKey);

         DiscoveryExceptionDictionary* myNewExceptionDictionary =
            new DiscoveryExceptionDictionary();
         // Add an exception with the custom error message.
         Exception* myNewException =
            new Exception(S"The requested service is not available.");
         myNewExceptionDictionary->Add(myUrlKey, myNewException);
         myExceptionDictionary = myNewExceptionDictionary;

         Console::WriteLine(S"Added exceptions.");

         Object* myArray[] = new Object*[myExceptionDictionary->Count];
         myExceptionDictionary->Keys->CopyTo((Array*)myArray,0);
         Console::WriteLine(S" Keys are :");
         IEnumerator* myEnum = myArray->GetEnumerator();
         while (myEnum->MoveNext())
         {
            Object* myObj = __try_cast<Object*>(myEnum->Current);
            Console::WriteLine(S" {0}", myObj);
         }

         Console::WriteLine();

         Object* myCollectionArray[] = new Object*[myExceptionDictionary->Count];
         myExceptionDictionary->Values->CopyTo((Array*)myCollectionArray,0);
         Console::WriteLine(S" Values are :");
         IEnumerator* myEnum1 = myCollectionArray->GetEnumerator();
         while (myEnum1->MoveNext())
         {
            Object* myObj = __try_cast<Object*>(myEnum1->Current);
            Console::WriteLine(S" {0}", myObj);
         }
      }
   }
}

System.Object
  System.Collections.DictionaryBase
    System.Web.Services.Discovery.DiscoveryExceptionDictionary

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
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