WebRequestEvent Class

 

Defines the base class for events providing Web-request information.

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

System.Object
  System.Web.Management.WebBaseEvent
    System.Web.Management.WebManagementEvent
      System.Web.Management.WebRequestEvent

public class WebRequestEvent : WebManagementEvent

NameDescription
System_CAPS_protmethodWebRequestEvent(String, Object, Int32)

This API supports the product infrastructure and is not intended to be used directly from your code. Initializes the WebRequestEvent class with specified event parameters.

System_CAPS_protmethodWebRequestEvent(String, Object, Int32, Int32)

This API supports the product infrastructure and is not intended to be used directly from your code. Initializes the WebRequestEvent class with specified event parameters.

NameDescription
System_CAPS_pubpropertyEventCode

Gets the code value associated with the event.(Inherited from WebBaseEvent.)

System_CAPS_pubpropertyEventDetailCode

Gets the event detail code.(Inherited from WebBaseEvent.)

System_CAPS_pubpropertyEventID

Gets the identifier associated with the event.(Inherited from WebBaseEvent.)

System_CAPS_pubpropertyEventOccurrence

Gets a counter that represents the number of times the event has occurred.(Inherited from WebBaseEvent.)

System_CAPS_pubpropertyEventSequence

Gets the number of times the event has been raised by the application.(Inherited from WebBaseEvent.)

System_CAPS_pubpropertyEventSource

Gets the object that raises the event.(Inherited from WebBaseEvent.)

System_CAPS_pubpropertyEventTime

Gets the time when the event was raised.(Inherited from WebBaseEvent.)

System_CAPS_pubpropertyEventTimeUtc

Gets the time when the event was raised.(Inherited from WebBaseEvent.)

System_CAPS_pubpropertyMessage

Gets the message that describes the event.(Inherited from WebBaseEvent.)

System_CAPS_pubpropertyProcessInformation

Gets information about the ASP.NET application-hosting process.(Inherited from WebManagementEvent.)

System_CAPS_pubpropertyRequestInformation

Gets the information associated with the Web-application request.

NameDescription
System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodFormatCustomEventDetails(WebEventFormatter)

Provides standard formatting of the event information.(Inherited from WebBaseEvent.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_protmethodIncrementPerfCounters()

This API supports the product infrastructure and is not intended to be used directly from your code. Used internally to increment the performance counters.(Overrides WebBaseEvent.IncrementPerfCounters().)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_pubmethodRaise()

Raises an event by notifying any configured provider that the event has occurred.(Inherited from WebBaseEvent.)

System_CAPS_pubmethodToString()

Formats event information for display purposes.(Inherited from WebBaseEvent.)

System_CAPS_pubmethodToString(Boolean, Boolean)

Formats event information for display purposes.(Inherited from WebBaseEvent.)

The WebRequestEvent is raised at every Web request.

It uses the WebRequestInformation class to obtain request information.

System_CAPS_noteNote

In most cases you will use the standard ASP.NET health-monitoring types and control their behavior by setting the healthMonitoring configuration section. You can also create custom types, as shown in the next example. If you create your custom event type and you need to add your own information, customize the FormatCustomEventDetails method. This will avoid overwriting or tampering with sensitive system information.

The following code example shows how to derive from the WebRequestEvent class to create a custom event.


using System;
using System.Text;
using System.Web;
using System.Web.Management;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace SamplesAspNet
{
    // Implements a custom WebRequestEvent. 
    public class SampleWebRequestEvent :
      System.Web.Management.WebRequestEvent
    {
        private string  customCreatedMsg, 
                        customRaisedMsg;

        // Invoked in case of events identified only 
        // by their event code.
        public SampleWebRequestEvent(
            string msg, 
            object eventSource, int eventCode): 
            base(msg, eventSource, eventCode)
        {

            // Perform custom initialization.
            customCreatedMsg =
              string.Format(
              "Event created at: {0}", 
              EventTime.ToString());
        }


        // Invoked in case of events identified 
        // by their event code.and 
        // related event detailed code.
        public SampleWebRequestEvent(string msg,
            object eventSource, int eventCode,
            int eventDetailCode):
            base(msg, eventSource, eventCode, 
            eventDetailCode)
        {
            // Perform custom initialization.
            customCreatedMsg =
              string.Format(
              "Event created at: {0}", 
              EventTime.ToString());

        }


        // Raises the SampleWebRequestEvent.
        public override void Raise()
        {
            // Perform custom processing.
            customRaisedMsg =
              string.Format(
              "Event raised at: {0}", 
              EventTime.ToString());

            // Raise the event.
            base.Raise();
        }


        //Formats Web request event information.
        public override void FormatCustomEventDetails(
            WebEventFormatter formatter)
        {
            // Add custom data.
            formatter.AppendLine("");

            formatter.IndentationLevel += 1;
            formatter.AppendLine(
                "* Custom Request Information Start *");

            //// Display custom event timing.
            formatter.AppendLine(customCreatedMsg);
            formatter.AppendLine(customRaisedMsg);

            formatter.AppendLine(
                "* Custom Request Information End *");

            formatter.IndentationLevel -= 1;

        }

    }
}

The following is an excerpt of the configuration file that enables ASP.NET to use the custom event.

<healthMonitoring 
  enabled="true" heartBeatInterval="0">
  <providers>
    <!-- Define the custom provider that 
         processes custom Web request events. -->
    <add name="SampleWebEventProvider" 
type="SamplesAspNet.SampleEventProvider,webeventprovider,Version=1.0.1573.18094, Culture=neutral, PublicKeyToken=b5a57a9a9d487cf4, processorArchitecture=MSIL"/>
  </providers>

  <eventMappings>
    <!--  Define the event source that 
         issues custom events.   -->
    <add  name="SampleWebRequestEvent" 
type="SamplesAspNet.SampleWebRequestEvent,webrequestevent,Version=1.0.1573.23947, Culture=neutral, PublicKeyToken=e717d983a78c8ddb, processorArchitecture=MSIL"/>
    </eventMappings>

  <rules>
        <!-- Associate custom event with 
        related custom provider -->
    <add 
      name="CustomWebRequestEvent"
      eventName="SampleWebRequestEvent" 
      provider="SampleWebEventProvider" 
      profile="Critical"/>
  </rules>
</healthMonitoring>

.NET Framework
Available since 2.0

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

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