WebRequestErrorEvent Classe

Définition

public ref class WebRequestErrorEvent : System::Web::Management::WebBaseErrorEvent

public class WebRequestErrorEvent : System.Web.Management.WebBaseErrorEvent

type WebRequestErrorEvent = class
    inherit WebBaseErrorEvent

Public Class WebRequestErrorEvent
Inherits WebBaseErrorEvent

Héritage

Object

WebBaseEvent

WebManagementEvent

WebBaseErrorEvent

WebRequestErrorEvent

Dérivé

System.Web.Management.WebServiceErrorEvent

Exemples

L’exemple de code suivant comporte deux parties. La première partie est un extrait d’un fichier de configuration qui permet ASP.NET d’utiliser un événement personnalisé. La deuxième partie montre comment dériver de la WebRequestErrorEvent classe pour créer l’événement personnalisé.

<healthMonitoring enabled="true" heartBeatInterval="0">  
  <eventMappings>  
    <add  name="SampleWebRequestErrorEvent" type="SamplesAspNet.SampleWebRequestErrorEvent,webrequesterrorevent,Version=1.0.1573.21654, Culture=neutral, PublicKeyToken=63ada862a6c5af13, processorArchitecture=MSIL"/>  
  </eventMappings>  

  <rules>  
    <add   
      name="Custom Web Request Error Events"  
      eventName="SampleWebRequestErrorEvent"   
      provider="EventLogProvider"    
      profile="Critical"/>  
  </rules>  
</healthMonitoring>  

using System;
using System.Text;
using System.Web;
using System.Web.Management;

namespace Samples.AspNet.Management
{
  // Implements a custom WebRequestErrorEvent class. 
    public class SampleWebRequestErrorEvent : 
        WebRequestErrorEvent
    {
        private StringBuilder eventInfo;

        // Invoked in case of events 
        // identified only by their event code.
        public SampleWebRequestErrorEvent(string msg, 
            object eventSource, int eventCode, 
            Exception e):
          base(msg, eventSource, eventCode, e)
        {
            // Perform custom initialization.
            eventInfo = new StringBuilder();
            eventInfo.Append(string.Format(
                "Event created at: ", EventTime.ToString()));
        }

        // Invoked in case of events identified 
        // by their event code.and related event 
        // detailed code.
        public SampleWebRequestErrorEvent(
            string msg, object eventSource, 
            int eventCode, int detailedCode, 
            Exception e):
          base(msg, eventSource, 
            eventCode, detailedCode, e)
        {
            // Perform custom initialization.
            eventInfo = new StringBuilder();
            eventInfo.Append(string.Format(
                "Event created at: ", EventTime.ToString()));
        }


        // Raises the SampleWebRequestErrorEvent.
        public override void Raise()
        {
            // Perform custom processing. 
            eventInfo.Append(string.Format(
                "Event raised at: ", EventTime.ToString()));
            // Raise the event.
            base.Raise();
        }

        // Obtains the current request information.
        public string GetRequestInfo()
        {
            string reqInfo = GetRequestInfo();
            return reqInfo;
        }

        // Obtains the current thread information.
        public string GetThreadInfo()
        {
            string threadInfo = GetThreadInfo();
            return threadInfo;
        }

        // Obtains the current process information.
        public string GetProcessInfo()
        {
            string procInfo = GetProcessInfo();
            return procInfo;
        }

        //Formats Web request event information.
        public override void FormatCustomEventDetails(
               WebEventFormatter formatter)
        {
            base.FormatCustomEventDetails(formatter);

            // Add custom data.
            formatter.AppendLine("");

            formatter.IndentationLevel += 1;
            formatter.AppendLine(
                "** SampleWebRequestEvent Start **");

            // Add custom data.
            formatter.AppendLine(eventInfo.ToString());

            formatter.AppendLine(
                      "** SampleWebRequestEvent End **");
        }
    }
}

Imports System.Text
Imports System.Web
Imports System.Web.Management


' Implements a custom WebRequestErrorEvent class. 
Public Class SampleWebRequestErrorEvent
   Inherits WebRequestErrorEvent
   Private eventInfo As StringBuilder
   
   
   ' 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, _
    ByVal e As Exception)
        MyBase.New(msg, eventSource, _
        eventCode, e)
        ' Perform custom initialization.
        eventInfo = New StringBuilder()
        eventInfo.Append(String.Format( _
        "Event created at: ", _
        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 detailedCode As Integer, _
    ByVal e As Exception)
        MyBase.New(msg, eventSource, _
        eventCode, detailedCode, e)
        ' Perform custom initialization.
        eventInfo = New StringBuilder()
        eventInfo.Append(String.Format( _
        "Event created at: ", _
        EventTime.ToString()))
    End Sub
   
   
   ' Raises the SampleWebRequestErrorEvent.
   Public Overrides Sub Raise()
      ' Perform custom processing. 
        eventInfo.Append(String.Format( _
        "Event raised at: ", _
        EventTime.ToString()))
      ' Raise the event.
      MyBase.Raise()
   End Sub
   
   ' Obtains the current request information.
   Public Function GetRequestInfo() As String
      Dim reqInfo As String = GetRequestInfo()
      Return reqInfo
   End Function 'GetRequestInfo
   
   
   ' Obtains the current thread information.
   Public Function GetThreadInfo() As String
      Dim threadInfo As String = GetThreadInfo()
      Return threadInfo
   End Function 'GetThreadInfo
   
   
   ' Obtains the current process information.
   Public Function GetProcessInfo() As String
      Dim procInfo As String = GetProcessInfo()
      Return procInfo
   End Function 'GetProcessInfo
   
   
   'Formats Web request event information.
    Public Overrides Sub FormatCustomEventDetails( _
    ByVal formatter As WebEventFormatter)
        MyBase.FormatCustomEventDetails(formatter)

        ' Add custom data.
        formatter.AppendLine("")

        formatter.IndentationLevel += 1
        formatter.AppendLine( _
        "** SampleWebRequestEvent Start **")

        ' Add custom data.
        formatter.AppendLine(eventInfo.ToString())

        formatter.AppendLine( _
        "** SampleWebRequestEvent End **")

    End Sub

End Class

Remarques

Le WebRequestErrorEvent message est déclenché si une erreur se produit lors d’une requête Web. Votre application doit utiliser cet événement pour obtenir des informations relatives à la demande, telles que définies par les WebRequestInformation classes et les WebThreadInformation classes.

Constructeurs

Propriétés

Méthodes

S’applique à

Voir aussi

• Vue d’ensemble de la surveillance de l’intégrité ASP.NET