WebBaseEventCollection Class
Definition
Important
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Contains a collection of WebBaseEvent objects. This class cannot be inherited.
public ref class WebBaseEventCollection sealed : System::Collections::ReadOnlyCollectionBasepublic sealed class WebBaseEventCollection : System.Collections.ReadOnlyCollectionBasetype WebBaseEventCollection = class
inherit ReadOnlyCollectionBasePublic NotInheritable Class WebBaseEventCollection
Inherits ReadOnlyCollectionBase- Inheritance
Examples
The following code example shows how to use the WebBaseEventCollection class.
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
Remarks
ASP.NET health monitoring allows production and operations staff to manage deployed Web applications. The System.Web.Management namespace contains the health event types responsible for packaging application health-status data and the provider types responsible for processing this data. It also contains supporting types that help during the management of health events.
The WebBaseEventCollection class is used to deliver a collection of health-monitoring events to providers such as the SqlWebEventProvider.
Constructors
| WebBaseEventCollection(ICollection) |
Initializes a new instance of the WebBaseEventCollection class. |
Properties
| Count |
Gets the number of elements contained in the ReadOnlyCollectionBase instance. (Inherited from ReadOnlyCollectionBase) |
| InnerList |
Gets the list of elements contained in the ReadOnlyCollectionBase instance. (Inherited from ReadOnlyCollectionBase) |
| Item[Int32] |
Gets the WebBaseEvent object at the specified index. |
Methods
| Contains(WebBaseEvent) |
Indicates whether the collection contains the specified WebBaseEvent object. |
| Equals(Object) |
Determines whether the specified object is equal to the current object. (Inherited from Object) |
| GetEnumerator() |
Returns an enumerator that iterates through the ReadOnlyCollectionBase instance. (Inherited from ReadOnlyCollectionBase) |
| GetHashCode() |
Serves as the default hash function. (Inherited from Object) |
| GetType() |
Gets the Type of the current instance. (Inherited from Object) |
| IndexOf(WebBaseEvent) |
Gets the index of the specified WebBaseEvent object. |
| MemberwiseClone() |
Creates a shallow copy of the current Object. (Inherited from Object) |
| ToString() |
Returns a string that represents the current object. (Inherited from Object) |
Explicit Interface Implementations
| ICollection.CopyTo(Array, Int32) |
Copies the entire ReadOnlyCollectionBase to a compatible one-dimensional Array, starting at the specified index of the target array. (Inherited from ReadOnlyCollectionBase) |
| ICollection.IsSynchronized |
Gets a value indicating whether access to a ReadOnlyCollectionBase object is synchronized (thread safe). (Inherited from ReadOnlyCollectionBase) |
| ICollection.SyncRoot |
Gets an object that can be used to synchronize access to a ReadOnlyCollectionBase object. (Inherited from ReadOnlyCollectionBase) |
Extension Methods
| Cast<TResult>(IEnumerable) |
Casts the elements of an IEnumerable to the specified type. |
| OfType<TResult>(IEnumerable) |
Filters the elements of an IEnumerable based on a specified type. |
| AsParallel(IEnumerable) |
Enables parallelization of a query. |
| AsQueryable(IEnumerable) |
Converts an IEnumerable to an IQueryable. |
