TraceWebEventProvider Class (System.Web.Management)

.NET Framework Class Library

TraceWebEventProvider Class

Implements an event provider that sends ASP.NET health-monitoring events as trace messages.

Namespace: System.Web.Management
Assembly: System.Web (in System.Web.dll)

Syntax

Visual Basic (Declaration)

<AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level := AspNetHostingPermissionLevel.Minimal)> _
Public NotInheritable Class TraceWebEventProvider _
    Inherits WebEventProvider

Visual Basic (Usage)

Dim instance As TraceWebEventProvider

[AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public sealed class TraceWebEventProvider : WebEventProvider

Visual C++

[AspNetHostingPermissionAttribute(SecurityAction::LinkDemand, Level = AspNetHostingPermissionLevel::Minimal)]
public ref class TraceWebEventProvider sealed : public WebEventProvider

JScript

public final class TraceWebEventProvider extends WebEventProvider

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.

This provider passes events to the Trace object. It passes events that derive from the WebBaseErrorEvent class as trace errors and passes all other events as trace information.

Note:
The TraceWebEventProvider object does not provide event buffering.

Note:

The TraceWebEventProvider object does not provide event buffering.

Note:
In most cases you will be able to use the ASP.NET health-monitoring types as implemented, and you will control the health-monitoring system by specifying values in the healthMonitoring configuration section. You can also derive from the health-monitoring types to create your own custom events and providers. For an example of creating a custom provider, see How to: Implement the Health Monitoring Custom Provider Example.

Note:

In most cases you will be able to use the ASP.NET health-monitoring types as implemented, and you will control the health-monitoring system by specifying values in the healthMonitoring configuration section. You can also derive from the health-monitoring types to create your own custom events and providers. For an example of creating a custom provider, see How to: Implement the Health Monitoring Custom Provider Example.

Examples

The following configuration file excerpt shows how to specify a provider of type TraceWebEventProvider in the healthMonitoring section. The add element in the rules section specifies that the provider will handle request-processing events.

<healthMonitoring
    enabled="true"
    heartBeatInterval="0">
    <providers>
        <add name="TraceEventProvider"
            type="System.Web.Management.TraceWebEventProvider, 
              System.Web"
            buffer="false"
            bufferMode=""
            maxEventLength="4096"
            maxSize="4096"
            maxMessagesPerNotification="1"
        />
    </providers>
    <eventMappings>
        <add name="Request Processing Events"
            type="System.Web.Management.WebRequestEvent, System.Web" 
        />
    </eventMappings>
    <profiles>
        <add name="Trace"
            minInstances="1"
            maxLimit="Infinite"
            minInterval="00:00:00"
        />
    </profiles>
    <rules>
        <add name="Trace Request Processing"
            eventName="Request Processing Events"
            provider="TraceEventProvider"
            profile="Trace"
        />
   </rules>
</healthMonitoring>

Inheritance Hierarchy

System..::.Object
  System.Configuration.Provider..::.ProviderBase
    System.Web.Management..::.WebEventProvider
      System.Web.Management..::.TraceWebEventProvider

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0

Reference

TraceWebEventProvider Members

System.Web.Management Namespace

WebEventProvider

HealthMonitoringSection

Trace

Other Resources

Introduction to Instrumentation and Tracing

providers Element for healthMonitoring (ASP.NET Settings Schema)

Creating and Configuring the Application Services Database for SQL Server