SchemaReference Class

Reference

Definition

Namespace:: System.Web.Services.Discovery

Assembly:: System.Web.Services.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

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

public ref class SchemaReference sealed : System::Web::Services::Discovery::DiscoveryReference

public sealed class SchemaReference : System.Web.Services.Discovery.DiscoveryReference

type SchemaReference = class
    inherit DiscoveryReference

Public NotInheritable Class SchemaReference
Inherits DiscoveryReference

Inheritance: Object

DiscoveryReference
SchemaReference

Examples

#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 = "c:\\Inetpub\\wwwroot\\dataservice.xsd";
      XmlSchema^ myXmlSchema;
      
      // Create the client protocol.
      DiscoveryClientProtocol^ myDiscoveryClientProtocol = gcnew DiscoveryClientProtocol;
      myDiscoveryClientProtocol->Credentials = CredentialCache::DefaultCredentials;
      
      //  Create a schema reference.
      SchemaReference^ mySchemaReferenceNoParam = gcnew SchemaReference;
      SchemaReference^ mySchemaReference = gcnew SchemaReference( myStringUrl );
      
      // Set the client protocol.
      mySchemaReference->ClientProtocol = myDiscoveryClientProtocol;
      
      // Access the default file name associated with the schema reference.
      Console::WriteLine( "Default filename is : {0}", mySchemaReference->DefaultFilename );
      
      // Access the namespace associated with schema reference class.
      Console::WriteLine( "Namespace is : {0}", SchemaReference::Namespace );
      FileStream^ myStream = gcnew FileStream( myStringUrl,FileMode::OpenOrCreate );
      
      // Read the document in a stream.
      mySchemaReference->ReadDocument( myStream );
      
      // Get the schema of referenced document.
      myXmlSchema = mySchemaReference->Schema;
      Console::WriteLine( "Reference is : {0}", mySchemaReference->Ref );
      Console::WriteLine( "Target namespace (default empty) is : {0}", mySchemaReference->TargetNamespace );
      Console::WriteLine( "URL is : {0}", mySchemaReference->Url );
      
      // Write the document in the stream.
      mySchemaReference->WriteDocument( myXmlSchema, myStream );
      myStream->Close();
      mySchemaReference = nullptr;
      
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( e );
   }

}

using System;
using System.IO;
using System.Net;
using System.Xml;
using System.Xml.Schema;
using System.Web.Services.Discovery;

public class SchemaReferenceClass
{
   public static void Main()
   {
      try
      {


         // Reference the schema document.
         string myStringUrl = "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("Default filename is : " +
             mySchemaReference.DefaultFilename);

         // Access the namespace associated with schema reference class.
         Console.WriteLine("Namespace is : " + 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("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 = null;

      }
      catch (Exception e)
      {
         Console.WriteLine(e.ToString());
      }
   }
}

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

Remarks

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 existence 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.

Constructors

SchemaReference()	Initializes a new instance of the SchemaReference class using default values.
SchemaReference(String)	Initializes a new instance of the SchemaReference class using the supplied URL as the XSD schema reference.

Fields

Namespace

XML namespace for XSD schema references in discovery documents.

Properties

ClientProtocol	Gets or sets the instance of DiscoveryClientProtocol used in a discovery process. (Inherited from DiscoveryReference)
DefaultFilename	Gets the name of the default file to use when saving the referenced XSD schema.
Ref	Gets or sets the URL to the referenced XSD schema.
Schema	Gets an XmlSchema object representing the XSD schema.
TargetNamespace	Gets or sets the `targetNamespace` XML attribute of the XSD schema.
Url	Gets or sets the URL for the schema reference.

Methods

Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetType()	Gets the Type of the current instance. (Inherited from Object)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ReadDocument(Stream)	Reads and returns the XSD schema from the passed Stream.
Resolve()	Downloads the referenced document at Url to resolve whether the referenced document is valid. (Inherited from DiscoveryReference)
Resolve(String, Stream)	Resolves whether the referenced document is valid. (Inherited from DiscoveryReference)
ToString()	Returns a string that represents the current object. (Inherited from Object)
WriteDocument(Object, Stream)	Writes the passed XSD schema into the passed Stream.

Applies to

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