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SchemaReference Class

Represents a reference in a discovery document to an XML Schema Definition (XSD) language schema. This class cannot be inherited.

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

'Declaration
Public NotInheritable Class SchemaReference _
	Inherits DiscoveryReference
'Usage
Dim instance As SchemaReference

XML Web services discovery involves discovering the available XML Web services given, a URL. A The URL typically points to a discovery document, which usually has a.disco file name extension. The discovery document contains references to information about the existance of XML Web services. These references can refer to service descriptions, XSD schemas, or other discovery documents. This class represents a reference to an XSD schema.

Within a discovery document, a reference to an XSD schema is contained within a schemaRef XML element. The schemaRef XML element has an XML namespace and a ref attribute. The value of the XML namespace must match the Namespace constant. The value of the ref attribute is placed in the Ref property.

Imports System
Imports System.IO
Imports System.Net
Imports System.Xml
Imports System.Xml.Schema
Imports System.Web.Services.Discovery

Public Module SchemaReferenceModule

   Public Sub Main()
      Try 


         ' Reference the schema document. 
         Dim myStringUrl As String = "c:\\Inetpub\\wwwroot\\dataservice.xsd" 
         Dim myXmlSchema As XmlSchema

         ' Create the client protocol. 
         Dim myDiscoveryClientProtocol As DiscoveryClientProtocol = _
             New DiscoveryClientProtocol()
         myDiscoveryClientProtocol.Credentials = _
             CredentialCache.DefaultCredentials

         ' Create a schema reference. 
         Dim mySchemaReferenceNoParam As SchemaReference = New SchemaReference()

         Dim mySchemaReference As SchemaReference = _
             New SchemaReference(myStringUrl)

         ' Set the client protocol.
         mySchemaReference.ClientProtocol = myDiscoveryClientProtocol

         ' Access the default file name associated with the schema reference.
         Console.WriteLine("Default filename is : " & _
             mySchemaReference.DefaultFilename)

         ' Access the namespace associated with schema reference class.
         Console.WriteLine("Namespace is : " & SchemaReference.Namespace)

         Dim myStream As FileStream = _
             New FileStream(myStringUrl, FileMode.OpenOrCreate)

         ' Read the document in a stream.
         mySchemaReference.ReadDocument(myStream)

         ' Get the schema of the referenced document.
         myXmlSchema = mySchemaReference.Schema

         Console.WriteLine("Reference is : " & mySchemaReference.Ref)

         Console.WriteLine("Target namespace (default empty) is : " & _
             mySchemaReference.TargetNamespace)

         Console.WriteLine("URL is : " & mySchemaReference.Url)

         ' Write the document in the stream.
         mySchemaReference.WriteDocument(myXmlSchema, myStream)

         myStream.Close()
         mySchemaReference = Nothing 
      Catch e As Exception

         Console.WriteLine(e.ToString)

      End Try 

   End Sub 
End Module
#using <mscorlib.dll>
#using <System.dll>
#using <System.Xml.dll>
#using <System.Web.Services.dll>
using namespace System;
using namespace System::IO;
using namespace System::Net;
using namespace System::Xml;
using namespace System::Xml::Schema;
using namespace System::Web::Services::Discovery;

int main() {
   try {

      // Reference the schema document.
      String* myStringUrl = S"c:\\Inetpub\\wwwroot\\dataservice.xsd";
      XmlSchema* myXmlSchema;

      // Create the client protocol.
      DiscoveryClientProtocol* myDiscoveryClientProtocol =
         new DiscoveryClientProtocol();
      myDiscoveryClientProtocol->Credentials =
         CredentialCache::DefaultCredentials;

      //  Create a schema reference.
      SchemaReference* mySchemaReferenceNoParam = new SchemaReference();

      SchemaReference* mySchemaReference = new SchemaReference(myStringUrl);

      // Set the client protocol.
      mySchemaReference->ClientProtocol = myDiscoveryClientProtocol;

      // Access the default file name associated with the schema reference.
      Console::WriteLine(S"Default filename is : {0}",
         mySchemaReference->DefaultFilename);

      // Access the namespace associated with schema reference class.
      Console::WriteLine(S"Namespace is : {0}", SchemaReference::Namespace);

      FileStream* myStream =
         new FileStream(myStringUrl, FileMode::OpenOrCreate);

      // Read the document in a stream.
      mySchemaReference->ReadDocument(myStream);

      // Get the schema of referenced document.
      myXmlSchema = mySchemaReference->Schema;

      Console::WriteLine(S"Reference is : {0}", mySchemaReference->Ref);

      Console::WriteLine(S"Target namespace (default empty) is : {0}",
         mySchemaReference->TargetNamespace);

      Console::WriteLine(S"URL is : {0}", mySchemaReference->Url);

      // Write the document in the stream.
      mySchemaReference->WriteDocument(myXmlSchema, myStream);

      myStream->Close();
      mySchemaReference = 0;

   } catch (Exception* e) {
      Console::WriteLine(e);
   }
}

System.Object
  System.Web.Services.Discovery.DiscoveryReference
    System.Web.Services.Discovery.SchemaReference

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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