WebBaseEventCollection Classe

Definição

public ref class WebBaseEventCollection sealed : System::Collections::ReadOnlyCollectionBase

public sealed class WebBaseEventCollection : System.Collections.ReadOnlyCollectionBase

type WebBaseEventCollection = class
    inherit ReadOnlyCollectionBase

Public NotInheritable Class WebBaseEventCollection
Inherits ReadOnlyCollectionBase

Herança

Object

ReadOnlyCollectionBase

WebBaseEventCollection

Exemplos

O exemplo de código seguinte mostra como usar a WebBaseEventCollection classe.

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

namespace SamplesAspNet
{
    // Implements a custom WebBaseEvent class. 
    // Everytime this class is instantiated a WebBaseEvent is 
    // created. This event object is then added to the static 
    // simulatedEvents array list.
    public class SampleWebBaseEventCollection : System.Web.Management.WebBaseEvent
    {
        private string customCreatedMsg;

        private static ArrayList simulatedEvents = new ArrayList();
        private static System.Web.Management.WebBaseEventCollection events;

        // Create a new WebBaseEvent and add it to the 
        // static array list simulatedEvents.
        public SampleWebBaseEventCollection(
        string msg, object eventSource, int eventCode):
        base(msg, eventSource, eventCode)
        {

            customCreatedMsg =
              string.Format("Event created at: {0}", 
              DateTime.Now.TimeOfDay.ToString());

            simulatedEvents.Add(this);
        }

        // Get the event with the specified index.
        public static WebBaseEvent GetItem(int index)
        {
            return events[index];
        }

        // Get the index of the specified event.
        public static int GetIndexOf(WebBaseEvent ev)
        {
            return events.IndexOf(ev);
        }

        // Check if the specified event is in the collection.
        public static bool ContainsEvent(WebBaseEvent ev)
        {
            return events.Contains(ev);
        }


        // Create an event collection.
        // Add to it the created simulatedEvents.
        public static void AddEvents()
        {
            events = 
            new System.Web.Management.WebBaseEventCollection(
            simulatedEvents);
        }


        // Display the events contained in the collection.
        public override void FormatCustomEventDetails(WebEventFormatter formatter)
        {
            base.FormatCustomEventDetails(formatter);
            // Add custom data.
            formatter.AppendLine("");

            formatter.IndentationLevel += 1;
            formatter.AppendLine(
                "**SampleWebBaseEventCollection Data Start **");
            foreach (WebBaseEvent ev in events)
            {
                formatter.AppendLine(string.Format(
                    "Message:   {0}", ev.Message));
                formatter.AppendLine(string.Format(
                    "Source:    {0}", ev.EventSource.ToString()));
                formatter.AppendLine(string.Format(
                    "Code:      {0}", ev.EventCode.ToString()));
            }

            formatter.AppendLine(
                "**SampleWebBaseEventCollection Data End **");

            formatter.IndentationLevel -= 1;
        }
    }
}

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


' Implements a custom WebBaseEvent class. 
' Everytime this class is instantiated a WebBaseEvent is 
' created. This event object is then added to the static 
' simulatedEvents array list.

Public Class SampleWebBaseEventCollection
    Inherits System.Web.Management.WebBaseEvent
    Private customCreatedMsg As String
    
    Private Shared simulatedEvents As New ArrayList()
    Private Shared events _
    As System.Web.Management.WebBaseEventCollection
    
    
    ' Create a new WebBaseEvent and add it to the 
    ' static array list simulatedEvents.
    Public Sub New(ByVal msg As String, ByVal eventSource As Object, _
    ByVal eventCode As Integer)
        MyBase.New(msg, eventSource, eventCode)

        customCreatedMsg = String.Format("Event created at: {0}", _
        DateTime.Now.TimeOfDay.ToString())

        simulatedEvents.Add(Me)

    End Sub
     
    
    ' Get the event with the specified index.
    Public Shared Function GetItem(ByVal index _
    As Integer) As WebBaseEvent
        Return events(index)

    End Function 'GetItem
    
    ' Get the index of the specified event.
    Public Shared Function GetIndexOf(ByVal ev _
    As WebBaseEvent) As Integer
        Return events.IndexOf(ev)

    End Function 'GetIndexOf
    
    ' Chek if the specified event is in the collection.
    Public Shared Function ContainsEvent(ByVal ev _
    As WebBaseEvent) As Boolean
        Return events.Contains(ev)

    End Function 'ContainsEvent
    
    ' Create an event collection.
    ' Add to it the created simulatedEvents.
    Public Shared Sub AddEvents() 
        events = _
        New System.Web.Management.WebBaseEventCollection(simulatedEvents)
    
    End Sub
    
    
    ' Display the events contained in the collection.
    Public Overrides Sub FormatCustomEventDetails(ByVal formatter _
    As WebEventFormatter)
        MyBase.FormatCustomEventDetails(formatter)
        ' Add custom data.
        formatter.AppendLine("")

        formatter.IndentationLevel += 1
        formatter.AppendLine("**SampleWebBaseEventCollection Data Start **")
        Dim ev As WebBaseEvent
        For Each ev In events
            formatter.AppendLine(String.Format("Message:   {0}", _
            ev.Message))
            formatter.AppendLine(String.Format("Source:    {0}", _
            ev.EventSource.ToString()))
            formatter.AppendLine(String.Format("Code:      {0}", _
            ev.EventCode.ToString()))
        Next ev

        formatter.AppendLine("**SampleWebBaseEventCollection Data End **")

        formatter.IndentationLevel -= 1

    End Sub
End Class

Observações

A monitorização do estado do ASP.NET permite que as equipas de produção e operações gerenciem aplicações Web implementadas. O System.Web.Management namespace contém os tipos de eventos de saúde responsáveis por empacotar os dados de estado de saúde da aplicação e os tipos de fornecedores responsáveis pelo processamento desses dados. Inclui também tipos de apoio que ajudam na gestão de eventos de saúde.

A WebBaseEventCollection aula é utilizada para apresentar uma coleção de eventos de monitorização de saúde a prestadores como o SqlWebEventProvider.

Ver também

• SqlWebEventProvider
• ASP.NET Visão Geral da Monitorização da Saúde