SoapRpcMethodAttribute.Action Property    
Definition
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.
Gets or sets the SOAPAction HTTP header field of the SOAP request.
public:
 property System::String ^ Action { System::String ^ get(); void set(System::String ^ value); };public string Action { get; set; }member this.Action : string with get, setPublic Property Action As StringProperty Value
The SOAPAction HTTP header field of the SOAP request. The default is http://tempuri.org/MethodName where MethodName is the name of the XML Web service method.
Examples
The following code example sets the Action property to http://www.contoso.com/Sample.
<%@ WebService Language="C#" class="MyUser" %>
 using System;
 using System.Web.Services;
 using System.Web.Services.Protocols;
 
 public class MyUser : WebService {
 
       [ SoapRpcMethod(Action="http://www.contoso.com/Sample", 
           RequestNamespace="http://www.contoso.com/Request",
           RequestElementName="GetUserNameRequest",
           ResponseNamespace="http://www.contoso.com/Response",
           ResponseElementName="GetUserNameResponse")]
      [ WebMethod(Description="Obtains the User Name") ]
      public UserName GetUserName() {
           string temp;
           int pos;
           UserName NewUser = new UserName();
           
           // Get the full user name, including the domain name if applicable.
           temp = User.Identity.Name;
 
           // Determine whether the user is part of a domain by searching for a backslash.
           pos = temp.IndexOf("\\");
           
           // Parse the domain name out of the string, if one exists.
           if (pos <= 0)
                 NewUser.Name = User.Identity.Name;
           else {
               NewUser.Name = temp.Remove(0,pos+1);
                 NewUser.Domain = temp.Remove(pos,temp.Length-pos);
           } 
       return NewUser;
      }
 
 }   
 
 public class UserName {
 
     public string Name;
     public string Domain;
 }
<%@ WebService Language="VB" class="MyUser" %>
Imports System
Imports System.Web.Services
Imports System.Web.Services.Protocols
Public Class MyUser
    Inherits WebService    
    
    <SoapRpcMethod(Action := "http://www.contoso.com/Sample", _
    RequestNamespace := "http://www.contoso.com/Request", _
    RequestElementName := "GetUserNameRequest", _
    ResponseNamespace := "http://www.contoso.com/Response", _
    ResponseElementName := "GetUserNameResponse"), _
    WebMethod(Description := "Obtains the User Name")> _
    Public Function _
        GetUserName() As UserName
        
        Dim temp As String
        Dim pos As Integer
        Dim NewUser As New UserName()
        
        ' Get the full user name, including the domain name if applicable.
        temp = User.Identity.Name
        
        ' Determine whether the user is part of a domain by searching for a backslash.
        pos = temp.IndexOf("\")
        
        ' Parse the domain name out of the string, if one exists.
        If pos <= 0 Then
            NewUser.Name = User.Identity.Name
        Else
            NewUser.Name = temp.Remove(0, pos + 1)
            NewUser.Domain = temp.Remove(pos, temp.Length - pos)
        End If
        Return NewUser
    End Function
End Class 
Public Class UserName
    
    Public Name As String
    Public Domain As String
End Class
Remarks
Typically, the Action property is a URI indicating the intent of the SOAP request. However, the SOAP specification places no restrictions on the format and whether the URI refers to an existing document. The presence and content of the Action property can be used by Web servers such as firewalls to appropriately filter SOAP request messages in HTTP.
By default, the .NET Framework version 1.1 publishes the Action property in the soapAction attribute of the soap:operation element for each supported SOAP binding in WSDL documents generated for an XML Web service. The supported SOAP binding is SOAP 1.1.
For more information, see the SOAP specification on the W3C website.