EventLogWatcher Class

 

Allows you to subscribe to incoming events. Each time a desired event is published to an event log, the EventRecordWritten event is raised, and the method that handles this event will be executed.

Namespace:   System.Diagnostics.Eventing.Reader
Assembly:  System.Core (in System.Core.dll)

System.Object
  System.Diagnostics.Eventing.Reader.EventLogWatcher

[HostProtectionAttribute(SecurityAction.LinkDemand, MayLeakOnAbort = true)]
public class EventLogWatcher : IDisposable

NameDescription
System_CAPS_pubmethodEventLogWatcher(EventLogQuery)

Initializes a new instance of the EventLogWatcher class by specifying an event query.

System_CAPS_pubmethodEventLogWatcher(EventLogQuery, EventBookmark)

Initializes a new instance of the EventLogWatcher class by specifying an event query and a bookmark that is used as starting position for the query.

System_CAPS_pubmethodEventLogWatcher(EventLogQuery, EventBookmark, Boolean)

Initializes a new instance of the EventLogWatcher class by specifying an event query, a bookmark that is used as starting position for the query, and a Boolean value that determines whether to read the events that already exist in the event log.

System_CAPS_pubmethodEventLogWatcher(String)

Initializes a new instance of the EventLogWatcher class by specifying the name or path to an event log.

NameDescription
System_CAPS_pubpropertyEnabled

Determines whether this object starts delivering events to the event delegate.

NameDescription
System_CAPS_pubmethodDispose()

Releases all the resources used by this object.

System_CAPS_protmethodDispose(Boolean)

Releases the unmanaged resources used by this object, and optionally releases the managed resources.

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_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_protmethodMemberwiseClone()

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

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

NameDescription
System_CAPS_pubeventEventRecordWritten

Allows setting a delegate (event handler method) that gets called every time an event is published that matches the criteria specified in the event query for this object.

The instances of this class are created from EventLogQuery objects, which specify a query for the event subscription. When an event is logged that matches the criteria expressed in the query, then the EventRecordWritten event is raised.

For example code using this class, see How to: Subscribe to Events in an Event Log.

.NET Framework
Available since 3.5

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

System.Diagnostics.Eventing.Reader Namespace
Technology Summary for Reading and Managing Event Logs
Event Log Scenarios

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