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DiscoveryExceptionDictionary Class

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

For a list of all members of this type, see DiscoveryExceptionDictionary Members.

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

[Visual Basic]
NotInheritable Public Class DiscoveryExceptionDictionary
   Inherits DictionaryBase
[C#]
public sealed class DiscoveryExceptionDictionary : DictionaryBase
[C++]
public __gc __sealed class DiscoveryExceptionDictionary : public
   DictionaryBase
[JScript]
public class DiscoveryExceptionDictionary extends DictionaryBase

Thread Safety

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

Remarks

The Errors property of DiscoveryClientProtocol is of type DiscoveryExceptionDictionary.

Example

[Visual Basic] 
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

[C#] 
using System;
using System.Web.Services.Discovery;
using System.Xml;
using System.Collections;
using System.Runtime.Remoting;
using System.Net;

public class MySample
{
   static void Main()
   {
      string myDiscoFile = "http://localhost/MathService_cs.disco";
      string myUrlKey = "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 =
                                  (ContractReference)myEnumerator.Current;
         DiscoveryClientProtocol myDiscoveryClientProtocol2 = 
                                       myContractReference.ClientProtocol;
         myDiscoveryClientProtocol2.ResolveAll();
         DiscoveryExceptionDictionary myExceptionDictionary 
                                      = myDiscoveryClientProtocol2.Errors;
         if ( myExceptionDictionary.Contains(myUrlKey) == true )
         {
            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 + "'");
         }
         if (myExceptionDictionary.Contains(myUrlKey) == true )
         {
            Console.WriteLine("System generated exceptions.");

            Exception myException = 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);

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

            Console.WriteLine("Added exceptions.");

            object[] myArray = new object[myExceptionDictionary.Count];
            myExceptionDictionary.Keys.CopyTo((Array)myArray,0);
            Console.WriteLine(" Keys are :");
            foreach(object myObj in myArray)
            {
               Console.WriteLine(" " + myObj.ToString());
            }

            Console.WriteLine();

            object[] myCollectionArray = new object[myExceptionDictionary.Count];
            myExceptionDictionary.Values.CopyTo((Array)myCollectionArray,0);
            Console.WriteLine(" Values are :");
            foreach(object myObj in myCollectionArray)
            {
               Console.WriteLine(" " + myObj.ToString());
            }
         }
      }
   }
}

[C++] 
#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);
         }
      }
   }
}

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.

Requirements

Namespace: System.Web.Services.Discovery

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

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

See Also

DiscoveryExceptionDictionary Members | System.Web.Services.Discovery Namespace | Errors | DiscoveryClientProtocol | IDictionary | DictionaryBase

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