Provides Web-application view-state-related-failure information.
Assembly: System.Web (in System.Web.dll)
Thetype exposes the following members.
|WebViewStateFailureAuditEvent(String, Object, Int32, ViewStateException)||Infrastructure. Initializes the class using the supplied parameters.|
|WebViewStateFailureAuditEvent(String, Object, Int32, Int32, ViewStateException)||Infrastructure. Initializes a new instance of the class using the supplied parameters.|
|EventCode||Gets the code value associated with the event. (Inherited from WebBaseEvent.)|
|EventDetailCode||Gets the event detail code. (Inherited from WebBaseEvent.)|
|EventID||Gets the identifier associated with the event. (Inherited from WebBaseEvent.)|
|EventOccurrence||Gets a counter that represents the number of times the event has occurred. (Inherited from WebBaseEvent.)|
|EventSequence||Gets the number of times the event has been raised by the application. (Inherited from WebBaseEvent.)|
|EventSource||Gets the object that raises the event. (Inherited from WebBaseEvent.)|
|EventTime||Gets the time when the event was raised. (Inherited from WebBaseEvent.)|
|EventTimeUtc||Gets the time when the event was raised. (Inherited from WebBaseEvent.)|
|Message||Gets the message that describes the event. (Inherited from WebBaseEvent.)|
|ProcessInformation||Gets information about the ASP.NET application-hosting process. (Inherited from WebManagementEvent.)|
|RequestInformation||Get the information associated with the Web request. (Inherited from WebAuditEvent.)|
|ViewStateException||Gets the exception caused by the failure.|
|Equals(Object)||Determines whether the specified Object is equal to the current Object. (Inherited from Object.)|
|Finalize||Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)|
|FormatCustomEventDetails||Provides standard formatting of the event information. (Inherited from WebBaseEvent.)|
|GetHashCode||Serves as a hash function for a particular type. (Inherited from Object.)|
|GetType||Gets the Type of the current instance. (Inherited from Object.)|
|IncrementPerfCounters||Infrastructure. Increments the Audit Failure Events Raised performance counter. (Inherited from WebFailureAuditEvent.)|
|MemberwiseClone||Creates a shallow copy of the current Object. (Inherited from Object.)|
|Raise()||Raises an event by notifying any configured provider that the event has occurred. (Inherited from WebBaseEvent.)|
|ToString()||Formats event information for display purposes. (Inherited from WebBaseEvent.)|
|ToString(Boolean, Boolean)||Formats event information for display purposes. (Inherited from WebBaseEvent.)|
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.
ASP.NET raises events of type when a view-state failure occurs. This failure indicates either an attempt to tamper with view state or its reuse from another machine with a different key. The related audit event code is AuditInvalidViewStateFailure.
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.
The following is an excerpt of a configuration file showing how to configure the EventLogWebEventProvider to capture view-state failures. For completeness we are showing the setup for the provider and eventMappings sections. They are already set by default. The only thing you need to do is to provide the setup for the rules section. Refer to healthMonitoring for more information.
To generate a view-state error, enter a URL in your browser with the following query string:
The Windows Application Eventlog will capture a view-state failure, if you enter the following configuration settings.
<healthMonitoring enabled="true" heartBeatInterval="0"> <providers> // Configure the provider to process // the health events. <add name="EventLogProvider" type="System.Web.Management.EventLogWebEventProvider, System.Web,Version=2.0.3600.0,Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/> </providers> <eventMappings> <clear /> // Configure the WebFailureAuditEvent // object to handle the Viewstate failures. <add name="Failure Audits" type="System.Web.Management.WebFailureAuditEvent, System.Web,Version=2.0.3600.0,Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" /> </eventMappings> <rules> <clear/> // Configure the connection between the // application lifetime event object // and the provider that must process it. <add name="Viewstate Failure Events " eventName="Failure Events" provider="EventLogProvider" profile="Default" minInterval="00:01:00" /> </rules> </healthMonitoring>
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.