RequestNotification RequestNotification RequestNotification RequestNotification Enum

Definición

Indica cuándo se producen eventos y otros eventos de ciclo de vida durante el procesamiento de una solicitud HttpApplication.Indicates when events and other life-cycle events occur while a HttpApplication request is being processed.

Esta enumeración tiene el atributo FlagsAttribute, que permite una combinación bit a bit de sus valores de miembro.

public enum class RequestNotification
[System.Flags]
public enum RequestNotification
type RequestNotification = 
Public Enum RequestNotification
Herencia
RequestNotificationRequestNotificationRequestNotificationRequestNotification
Atributos

Campos

AcquireRequestState AcquireRequestState AcquireRequestState AcquireRequestState 32

Indica que se ha producido y se está procesando el evento AcquireRequestState para la solicitud.Indicates that the AcquireRequestState event was raised for the request and is processing.

AuthenticateRequest AuthenticateRequest AuthenticateRequest AuthenticateRequest 2

Indica que se ha producido y se está procesando el evento AuthenticateRequest para la solicitud.Indicates that the AuthenticateRequest event was raised for the request and is processing.

AuthorizeRequest AuthorizeRequest AuthorizeRequest AuthorizeRequest 4

Indica que se ha producido y se está procesando el evento AuthorizeRequest para la solicitud.Indicates that the AuthorizeRequest event was raised for the request and is processing.

BeginRequest BeginRequest BeginRequest BeginRequest 1

Indica que se ha producido y se está procesando el evento BeginRequest para la solicitud.Indicates that the BeginRequest event was raised for the request and is processing.

EndRequest EndRequest EndRequest EndRequest 2048

Indica que se ha producido y se está procesando el evento EndRequest para la solicitud.Indicates that the EndRequest event was raised for the request and is processing.

ExecuteRequestHandler ExecuteRequestHandler ExecuteRequestHandler ExecuteRequestHandler 128

Indica que se está invocando el controlador asignado al recurso solicitado para que procese la solicitud.Indicates that the handler that is mapped to the requested resource is being invoked to process the request.

LogRequest LogRequest LogRequest LogRequest 1024

Indica que se ha producido y se está procesando el evento LogRequest para la solicitud.Indicates that the LogRequest event was raised for the request and is processing.

MapRequestHandler MapRequestHandler MapRequestHandler MapRequestHandler 16

Indica que se ha producido y se está procesando el evento MapRequestHandler para la solicitud.Indicates that the MapRequestHandler event was raised for the request and is processing.

PreExecuteRequestHandler PreExecuteRequestHandler PreExecuteRequestHandler PreExecuteRequestHandler 64

Indica un punto en el ciclo de vida de la aplicación justo antes de que se asigne el controlador que procesa la solicitud.Indicates a point in the application life cycle just before the handler that processes the request is mapped.

ReleaseRequestState ReleaseRequestState ReleaseRequestState ReleaseRequestState 256

Indica que se ha producido y se está procesando el evento ReleaseRequestState para la solicitud.Indicates that the ReleaseRequestState event was raised for the request and is processing.

ResolveRequestCache ResolveRequestCache ResolveRequestCache ResolveRequestCache 8

Indica que se ha producido y se está procesando el evento ResolveRequestCache para la solicitud.Indicates that the ResolveRequestCache event was raised for the request and is processing.

SendResponse SendResponse SendResponse SendResponse 536870912

Indica que se ha completado el procesamiento de la solicitud y que se está enviando la respuesta.Indicates that processing of the request is complete and that the response is being sent.

UpdateRequestCache UpdateRequestCache UpdateRequestCache UpdateRequestCache 512

Indica que se ha producido y se está procesando el evento UpdateRequestCache para la solicitud.Indicates that the UpdateRequestCache event was raised for the request and is processing.

Ejemplos

En el ejemplo siguiente se muestra cómo usar RequestNotification la enumeración CurrentNotification con la propiedad para determinar qué evento de HttpApplication la instancia actual está procesando la solicitud.The following example shows how to use the RequestNotification enumeration with the CurrentNotification property to determine which event of the current HttpApplication instance is processing the request.

using System;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;

// Module that demonstrates one event handler for several events.
namespace Samples
{
    public class ModuleExampleTestCS : IHttpModule
    {
        public ModuleExampleTestCS()
        {
            // Constructor
        }
        public void Init(HttpApplication app)
        {
            app.AuthenticateRequest += new EventHandler(App_Handler);
            app.PostAuthenticateRequest += new EventHandler(App_Handler);
            app.LogRequest += new EventHandler(App_Handler);
            app.PostLogRequest += new EventHandler(App_Handler);
        }
        public void Dispose()
        {
        }
        // One handler for AuthenticationRequest, PostAuthenticateRequest,
    // LogRequest, and PostLogRequest events
        public void App_Handler(object source, EventArgs e)
        {
            HttpApplication app = (HttpApplication)source;
            HttpContext context = app.Context;

            if (context.CurrentNotification == RequestNotification.AuthenticateRequest)
            {

                if (!context.IsPostNotification)
                {
                    // Put code here that is invoked when the AuthenticateRequest event is raised.
                }
                else
                {
                    // PostAuthenticateRequest 
                    // Put code here that runs after the AuthenticateRequest event completes.
                }
            }
            if (context.CurrentNotification == RequestNotification.LogRequest)
            {
                if (!context.IsPostNotification)
                {
                    // Put code here that is invoked when the LogRequest event is raised.
                }
                else
                {
                    // PostLogRequest
                    // Put code here that runs after the LogRequest event completes.
                }
            }

        }
    }
}
Imports System.Data
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI

' Module that demonstrates one event handler for several events.
Namespace Samples

    Public Class ModuleExampleTestVB
        Implements IHttpModule

        Public Sub New()
            ' Constructor
        End Sub

        Public Sub Init(ByVal app As HttpApplication) Implements IHttpModule.Init
            AddHandler app.AuthenticateRequest, AddressOf Me.App_Handler
            AddHandler app.PostAuthenticateRequest, AddressOf Me.App_Handler
            AddHandler app.LogRequest, AddressOf Me.App_Handler
            AddHandler app.PostLogRequest, AddressOf Me.App_Handler
        End Sub

        Public Sub Dispose() Implements IHttpModule.Dispose
        End Sub

        ' One handler for AuthenticationRequest, PostAuthenticateRequest,
    ' LogRequest, and PostLogRequest events
        Public Sub App_Handler(ByVal source As Object, ByVal e As EventArgs)
            Dim app As HttpApplication = CType(source, HttpApplication)
            Dim context As HttpContext = app.Context

            If (context.CurrentNotification = RequestNotification.AuthenticateRequest) Then

                If Not (context.IsPostNotification) Then

                    ' Put code here that is invoked when the AuthenticateRequest event is raised.
                Else

                    ' PostAuthenticateRequest 
                    ' Put code here that runs after the AuthenticateRequest event completes.

                End If
            End If

            If (context.CurrentNotification = RequestNotification.LogRequest) Then

                If Not (context.IsPostNotification) Then

                    ' Put code here that is invoked when the LogRequest event is raised.

                Else
                    ' PostLogRequest
                    ' Put code here that runs after the LogRequest event completes.

                End If
            End If
        End Sub
    End Class

End Namespace

Comentarios

La RequestNotification enumeración se usa con CurrentNotification la propiedad de HttpContext la clase para determinar qué evento de la canalización está procesando actualmente.The RequestNotification enumeration is used with the CurrentNotification property of the HttpContext class to determine what event in the pipeline is currently processing. Para determinar cuándo han terminado de procesarse todos los controladores de un HttpApplication evento concreto de la instancia, utilice IsPostNotification la propiedad.To determine when all the handlers for a specific event of the HttpApplication instance have finished processing, use the IsPostNotification property.

El RequestNotification tipo se introduce .NET Framework 3,5.NET Framework 3.5en.The RequestNotification type is introduced in the .NET Framework 3,5.NET Framework 3.5. Para más información, vea Versiones y dependencias.For more information, see Versions and Dependencies.

Se aplica a

Consulte también: