WebRequestEvent Classe

Définition

public ref class WebRequestEvent : System::Web::Management::WebManagementEvent

public class WebRequestEvent : System.Web.Management.WebManagementEvent

type WebRequestEvent = class
    inherit WebManagementEvent

Public Class WebRequestEvent
Inherits WebManagementEvent

Héritage

Object

WebBaseEvent

WebManagementEvent

WebRequestEvent

Exemples

L’exemple de code suivant montre comment dériver de la WebRequestEvent classe pour créer un événement personnalisé.

using System;
using System.Text;
using System.Web;
using System.Web.Management;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace SamplesAspNet
{
    // Implements a custom WebRequestEvent. 
    public class SampleWebRequestEvent :
      System.Web.Management.WebRequestEvent
    {
        private string  customCreatedMsg, 
                        customRaisedMsg;

        // Invoked in case of events identified only 
        // by their event code.
        public SampleWebRequestEvent(
            string msg, 
            object eventSource, int eventCode): 
            base(msg, eventSource, eventCode)
        {
           
            // Perform custom initialization.
            customCreatedMsg =
              string.Format(
              "Event created at: {0}", 
              EventTime.ToString());
        }

        // Invoked in case of events identified 
        // by their event code.and 
        // related event detailed code.
        public SampleWebRequestEvent(string msg,
            object eventSource, int eventCode,
            int eventDetailCode):
            base(msg, eventSource, eventCode, 
            eventDetailCode)
        {
            // Perform custom initialization.
            customCreatedMsg =
              string.Format(
              "Event created at: {0}", 
              EventTime.ToString());
        }


        // Raises the SampleWebRequestEvent.
        public override void Raise()
        {
            // Perform custom processing.
            customRaisedMsg =
              string.Format(
              "Event raised at: {0}", 
              EventTime.ToString());

            // Raise the event.
            base.Raise();
        }

        //Formats Web request event information.
        public override void FormatCustomEventDetails(
            WebEventFormatter formatter)
        {
            // Add custom data.
            formatter.AppendLine("");

            formatter.IndentationLevel += 1;
            formatter.AppendLine(
                "* Custom Request Information Start *");

            //// Display custom event timing.
            formatter.AppendLine(customCreatedMsg);
            formatter.AppendLine(customRaisedMsg);

            formatter.AppendLine(
                "* Custom Request Information End *");

            formatter.IndentationLevel -= 1;
        }

    }
}

Imports System.Text
Imports System.Web
Imports System.Web.Management
Imports System.Web.UI
Imports System.Web.UI.WebControls


' Implements a custom WebRequestEvent. 
Public Class SampleWebRequestEvent
    Inherits System.Web.Management.WebRequestEvent
    Private customCreatedMsg, customRaisedMsg As String
    
    
    ' Invoked in case of events identified only 
    ' by their event code.
    Public Sub New(ByVal msg As String, _
    ByVal eventSource As Object, _
    ByVal eventCode As Integer)
        MyBase.New(msg, eventSource, eventCode)

        ' Perform custom initialization.
        customCreatedMsg = String.Format( _
        "Event created at: {0}", _
        EventTime.ToString())

    End Sub
    
    
    ' Invoked in case of events identified 
    ' by their event code.and 
    ' related event detailed code.
    Public Sub New(ByVal msg As String, _
    ByVal eventSource As Object, _
    ByVal eventCode As Integer, _
    ByVal eventDetailCode As Integer)
        MyBase.New(msg, eventSource, _
        eventCode, eventDetailCode)
        ' Perform custom initialization.
        customCreatedMsg = String.Format( _
        "Event created at: {0}", _
        EventTime.ToString())

    End Sub
    

    ' Raises the SampleWebRequestEvent.
    Public Overrides Sub Raise() 
        ' Perform custom processing.
        customRaisedMsg = String.Format( _
        "Event raised at: {0}", _
        EventTime.ToString())
        
        ' Raise the event.
        MyBase.Raise()
    
    End Sub
    
    
    'Formats Web request event information.
    Public Overrides Sub FormatCustomEventDetails( _
    ByVal formatter As WebEventFormatter)
        ' Add custom data.
        formatter.AppendLine("")

        formatter.IndentationLevel += 1
        formatter.AppendLine( _
        "* Custom Request Information Start *")

        '// Display custom event timing.
        formatter.AppendLine(customCreatedMsg)
        formatter.AppendLine(customRaisedMsg)

        formatter.AppendLine( _
        "* Custom Request Information End *")

        formatter.IndentationLevel -= 1

    End Sub
End Class

Voici un extrait du fichier de configuration qui permet ASP.NET d’utiliser l’événement personnalisé.

<healthMonitoring
  enabled="true" heartBeatInterval="0">
  <providers>
    <!-- Define the custom provider that
         processes custom Web request events. -->
    <add name="SampleWebEventProvider"
type="SamplesAspNet.SampleEventProvider,webeventprovider,Version=1.0.1573.18094, Culture=neutral, PublicKeyToken=b5a57a9a9d487cf4, processorArchitecture=MSIL"/>
  </providers>

  <eventMappings>
    <!--  Define the event source that
         issues custom events.   -->
    <add  name="SampleWebRequestEvent"
type="SamplesAspNet.SampleWebRequestEvent,webrequestevent,Version=1.0.1573.23947, Culture=neutral, PublicKeyToken=e717d983a78c8ddb, processorArchitecture=MSIL"/>
    </eventMappings>

  <rules>
        <!-- Associate custom event with
        related custom provider -->
    <add
      name="CustomWebRequestEvent"
      eventName="SampleWebRequestEvent"
      provider="SampleWebEventProvider"
      profile="Critical"/>
  </rules>
</healthMonitoring>

Remarques

Il WebRequestEvent est déclenché à chaque requête Web.

Il utilise la classe pour obtenir des informations sur la WebRequestInformation demande.

Voir aussi

• Aperçu de la surveillance de l'état de santé ASP.NET