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WebServiceBindingAttribute Class

Declares a binding that defines one or more XML Web service methods. This class cannot be inherited.

Namespace: System.Web.Services
Assembly: System.Web.Services (in system.web.services.dll)

'Declaration
<AttributeUsageAttribute(AttributeTargets.Class Or AttributeTargets.Interface, AllowMultiple:=True)> _
Public NotInheritable Class WebServiceBindingAttribute
	Inherits Attribute
'Usage
Dim instance As WebServiceBindingAttribute

/** @attribute AttributeUsageAttribute(AttributeTargets.Class|AttributeTargets.Interface, AllowMultiple=true) */ 
public final class WebServiceBindingAttribute extends Attribute
AttributeUsageAttribute(AttributeTargets.Class|AttributeTargets.Interface, AllowMultiple=true) 
public final class WebServiceBindingAttribute extends Attribute
Not applicable.

A binding, as defined by Web Services Description Language (WSDL), is similar to an interface, in that it defines a concrete set of operations. Each XML Web service method is an operation within a particular binding. XML Web service methods are members of either the default binding for an XML Web service or a binding specified within a WebServiceBindingAttribute applied to a class implementing an XML Web service. An XML Web service can implement multiple bindings, by applying multiple WebServiceBindingAttribute attributes to an XML Web service.

Once one or more WebServiceAttribute attributes are applied to an XML Web service, a SoapDocumentMethodAttribute or SoapRpcMethodAttribute can be applied to individual XML Web service methods to indicate the binding operation implemented by a particular XML Web service method. Set the Binding property of SoapDocumentMethodAttribute or SoapRpcMethodAttribute to specify the binding an XML Web service method is implementing an operation for.

The following XML Web service implements operations from four bindings. Specifically, the XML Web service declares three bindings it implements operations for, by applying three WebServiceBindingAttribute attributes to the XML Web service.

To specify which binding an XML Web service method is implementing an operation for, a SoapDocumentMethodAttribute is applied to each of the XML Web service methods, except DefaultBindingMethod. By not specifying a binding for DefaultBindingMethod, it is implementing an operation on the default binding for the XML Web service.

<%@ WebService Language="VB" class="BindingSample" %>
Imports System
Imports System.Web.Services
Imports System.Web.Services.Protocols

' Binding is defined in this XML Web service and uses the default namespace.
' Binding is defined in this XML Web service, but it is not a part of the default
' namespace.
' Binding is defined on a remote server, but this XML Web service implements at
' least one operation in that binding.
<WebServiceBinding(Name := "LocalBinding"), _ 
 WebServiceBinding(Name := "LocalBindingNonDefaultNamespace", _ 
                   Namespace := "http://www.contoso.com/MyBinding"), _     
 WebServiceBinding(Name := "RemoteBinding", _ 
                   Namespace := "http://www.contoso.com/MyBinding", _
                   Location := "http://www.contoso.com/MySevice.asmx?wsdl")> _
Public Class BindingSample
    
    <SoapDocumentMethod(Binding := "LocalBinding"), WebMethod()> _
    Public Function LocalBindingMethod() As String
        
        Return "Member of binding defined in this XML Web service and member of the default namespace"
    End Function
    
    <SoapDocumentMethod(Binding := "LocalBindingNonDefaultNamespace"), WebMethod()> _
    Public Function LocalBindingNonDefaultNamespaceMethod() As String
    
        Return "Member o1f binding defined in this XML Web service, but a part of a different namespace"
    End Function    
    
    <SoapDocumentMethod(Binding := "RemoteBinding"), WebMethod()> _
    Public Function RemoteBindingMethod() As String
    
        Return "Member of a binding defined on another server"
    End Function    
    
    <WebMethod()> _
    Public Function DefaultBindingMethod() As String
    
        Return "Member of the default binding"
    End Function
End Class


System.Object
   System.Attribute
    System.Web.Services.WebServiceBindingAttribute

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 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0
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