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EventLogEntry Class

Encapsulates a single record in the event log. This class cannot be inherited.

System.Object
  System.MarshalByRefObject
    System.ComponentModel.Component
      System.Diagnostics.EventLogEntry

Namespace:  System.Diagnostics
Assembly:  System (in System.dll)
[SerializableAttribute]
public sealed class EventLogEntry : Component, 
	ISerializable

The EventLogEntry type exposes the following members.

  Name Description
Protected property CanRaiseEvents Gets a value indicating whether the component can raise an event. (Inherited from Component.)
Public property Category Gets the text associated with the CategoryNumber property for this entry.
Public property CategoryNumber Gets the category number of the event log entry.
Public property Container Gets the IContainer that contains the Component. (Inherited from Component.)
Public property Data Gets the binary data associated with the entry.
Protected property DesignMode Gets a value that indicates whether the Component is currently in design mode. (Inherited from Component.)
Public property EntryType Gets the event type of this entry.
Public property EventID Obsolete. Gets the application-specific event identifier for the current event entry.
Protected property Events Gets the list of event handlers that are attached to this Component. (Inherited from Component.)
Public property Index Gets the index of this entry in the event log.
Public property InstanceId Gets the resource identifier that designates the message text of the event entry.
Public property MachineName Gets the name of the computer on which this entry was generated.
Public property Message Gets the localized message associated with this event entry.
Public property ReplacementStrings Gets the replacement strings associated with the event log entry.
Public property Site Gets or sets the ISite of the Component. (Inherited from Component.)
Public property Source Gets the name of the application that generated this event.
Public property TimeGenerated Gets the local time at which this event was generated.
Public property TimeWritten Gets the local time at which this event was written to the log.
Public property UserName Gets the name of the user who is responsible for this event.
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  Name Description
Public method CreateObjRef Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from MarshalByRefObject.)
Public method Dispose() Releases all resources used by the Component. (Inherited from Component.)
Protected method Dispose(Boolean) Releases the unmanaged resources used by the Component and optionally releases the managed resources. (Inherited from Component.)
Public method Equals(EventLogEntry) Performs a comparison between two event log entries.
Public method Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected method Finalize Releases unmanaged resources and performs other cleanup operations before the Component is reclaimed by garbage collection. (Inherited from Component.)
Public method GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
Public method GetLifetimeService Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from MarshalByRefObject.)
Protected method GetService Returns an object that represents a service provided by the Component or by its Container. (Inherited from Component.)
Public method GetType Gets the Type of the current instance. (Inherited from Object.)
Public method InitializeLifetimeService Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject.)
Protected method MemberwiseClone() Creates a shallow copy of the current Object. (Inherited from Object.)
Protected method MemberwiseClone(Boolean) Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject.)
Public method ToString Returns a String containing the name of the Component, if any. This method should not be overridden. (Inherited from Component.)
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  Name Description
Public event Disposed Occurs when the component is disposed by a call to the Dispose method. (Inherited from Component.)
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  Name Description
Explicit interface implemetation Private method ISerializable.GetObjectData Infrastructure. Populates a SerializationInfo with the data needed to serialize the target object.
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You usually will not create instances of EventLogEntry directly when working with the EventLog class. The Entries member of the EventLog class contains a collection of EventLogEntry instances, which you iterate over when reading by using the EventLogEntryCollection.Item class index member.

Windows 98, Windows Millennium Edition Platform Note: Event logs are not supported on Windows 98 or Windows Millennium.

The following code example demonstrates the use of the EventLogEntry class. In this example, a switch statement uses console input to search for event log entries for the specified event type. If a match is found, log entry source information is displayed at the console.


using System;
using System.Diagnostics;
   class MyEventlogClass
   {
      public static void Main()
      {
         String myEventType=null;
         // Associate the instance of 'EventLog' with local System Log.
         EventLog myEventLog = new EventLog("System", ".");
         Console.WriteLine("1:Error");
         Console.WriteLine("2:Information");
         Console.WriteLine("3:Warning");
         Console.WriteLine("Select the Event Type");
         int myOption=Convert.ToInt32(Console.ReadLine());
         switch(myOption)
         {
            case 1:  myEventType="Error";
                     break;
            case 2:  myEventType="Information";
                     break;
            case 3:  myEventType="Warning";
                     break;
            default: break;
         }

            EventLogEntryCollection myLogEntryCollection=myEventLog.Entries;
            int myCount =myLogEntryCollection.Count;
            // Iterate through all 'EventLogEntry' instances in 'EventLog'.
            for(int i=myCount-1;i>0;i--)
            {
               EventLogEntry myLogEntry = myLogEntryCollection[i];
               // Select the entry having desired EventType.
               if(myLogEntry.EntryType.ToString().Equals(myEventType))
               {
                  // Display Source of the event.
                  Console.WriteLine(myLogEntry.Source
                     +" was the source of last event of type "
                     +myLogEntry.EntryType);
                  return;
               }
            }

         }
   }


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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.
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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