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SoapUnknownHeader.Element Propiedad

  • Referencia

Definición

Espacio de nombres:
System.Web.Services.Protocols
Ensamblado:
System.Web.Services.dll

Obtiene o establece el elemento de encabezado XML de la solicitud o respuesta SOAP.

public:
 property System::Xml::XmlElement ^ Element { System::Xml::XmlElement ^ get(); void set(System::Xml::XmlElement ^ value); };
public System.Xml.XmlElement Element { get; set; }
member this.Element : System.Xml.XmlElement with get, set
Public Property Element As XmlElement

Valor de propiedad

XmlElement

XmlElement que representa el código XML sin formato del encabezado SOAP.

Ejemplos

El siguiente MyWebService servicio web XML recibe todos los encabezados SOAP, incluidos los que no son el MyHeader encabezado SOAP del que conoce. El MyWebMethod método de servicio web XML devuelve al cliente los atributos XML del último encabezado SOAP desconocido que se le pasó como una cadena.

<%@ WebService Language="C#" Class="MyWebService"%>
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Xml;
using System;

// Define a SOAP header by deriving from the SoapHeader base class.

public class MyHeader : SoapHeader {
    public string MyValue;
}

public class MyWebService {

    public MyHeader myHeader;
    // Receive all SOAP headers besides the MyHeader SOAP header.
    public SoapUnknownHeader[] unknownHeaders;
 
    [WebMethod]
    [SoapHeader("myHeader", Direction=SoapHeaderDirection.InOut)]

    //Receive any SOAP headers other than MyHeader.
    [SoapHeader("unknownHeaders")]

    public string MyWebMethod() {

    string unknownHeaderAttributes = String.Empty;

        // Set myHeader.MyValue to some value.
         
       foreach (SoapUnknownHeader header in unknownHeaders) {
           // Perform some processing on the header.
           foreach (XmlAttribute attribute in header.Element.Attributes) {
              unknownHeaderAttributes = unknownHeaderAttributes + attribute.Name + ":" + attribute.Value + ";";            
           }
           // For those headers that cannot be 
           // processed, set the DidUnderstand property to false.
           header.DidUnderstand = false;
       }
       return unknownHeaderAttributes;
    }
}

<%@ WebService Language="VB" Class="MyWebService"%>
Imports System.Web.Services
Imports System.Web.Services.Protocols
Imports System.Xml
Imports System

' Define a SOAP header by deriving from the SoapHeader base class.
Public Class MyHeader
    Inherits SoapHeader
    Public MyValue As String
End Class

Public Class MyWebService
    
    Public myHeader As MyHeader
    
    ' Receive all SOAP headers besides the MyHeader SOAP header.
    Public unknownHeaders() As SoapUnknownHeader    

    'Receive any SOAP headers other than MyHeader.
    <WebMethod, _
    SoapHeader("myHeader", Direction := SoapHeaderDirection.InOut), _
    SoapHeader("unknownHeaders")> _
    Public Function MyWebMethod() As String
        Dim unknownHeaderAttributes As String = String.Empty
        
        ' Set myHeader.MyValue to some value.
        Dim header As SoapUnknownHeader
        For Each header In  unknownHeaders
            ' Perform some processing on the header.
            Dim attribute As XmlAttribute
            For Each attribute In header.Element.Attributes
                unknownHeaderAttributes &= attribute.Name & ":" & _
                    attribute.Value & ";"
            Next attribute
            ' For those headers that cannot be 
            ' processed, set the DidUnderstand property to false.
            header.DidUnderstand = False
        Next header
        
        Return unknownHeaderAttributes
        
    End Function
End Class

Comentarios

Si un método de servicio web XML desea procesar encabezados SOAP, no sabe en el momento en que se escribe el servicio web XML, puede procesar una XmlElement clase que represente el XML sin formato del encabezado SOAP.

Se aplica a

Consulte también