RequestNotification RequestNotification RequestNotification RequestNotification Enum

정의

public enum class RequestNotification

[System.Flags]
public enum RequestNotification

type RequestNotification = 

Public Enum RequestNotification

상속

ObjectObjectObjectObject

ValueTypeValueTypeValueTypeValueType

EnumEnumEnumEnum

RequestNotificationRequestNotificationRequestNotificationRequestNotification

특성

FlagsAttribute

필드

예제

다음 예제에서는 사용 하는 방법을 보여 줍니다 합니다 RequestNotification 인 열거형 합니다 CurrentNotification 현재 이벤트를 확인 하는 속성 HttpApplication 인스턴스는 요청을 처리 합니다.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

설명

RequestNotification 열거형을 사용 하 여 사용 합니다 CurrentNotification 의 속성은 HttpContext 파이프라인에서 어떤 이벤트가 현재 처리 중인 확인 하려면 클래스.The RequestNotification enumeration is used with the CurrentNotification property of the HttpContext class to determine what event in the pipeline is currently processing. 시기를 결정 하의 특정 이벤트에 대 한 모든 처리기를 HttpApplication 인스턴스 처리를 완료 한, 사용 된 IsPostNotification 속성.To determine when all the handlers for a specific event of the HttpApplication instance have finished processing, use the IsPostNotification property.

합니다 RequestNotification 형식에 도입 된는 .NET Framework 3.5.NET Framework 3.5합니다.The RequestNotification type is introduced in the .NET Framework 3.5.NET Framework 3.5. 자세한 내용은 버전 및 종속성을 참조하세요.For more information, see Versions and Dependencies.

적용 대상

추가 정보

• CurrentNotification
• IsPostNotification