Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Services / Monitoring / system / Diagnosticts / EventLogTraceListener.cs / 1 / EventLogTraceListener.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.Diagnostics { using System; using System.Security; using System.Security.Permissions; using System.IO; using System.Text; using System.Globalization; using System.Runtime.InteropServices; ////// [HostProtection(SecurityAction.LinkDemand, Synchronization=true)] public sealed class EventLogTraceListener : TraceListener { private EventLog eventLog; private bool nameSet; ///Provides a simple listener for directing tracing or /// debugging output to a ///or to a , such as or /// . /// public EventLogTraceListener() { } ///Initializes a new instance of the ///class without a trace /// listener. /// public EventLogTraceListener(EventLog eventLog) : base((eventLog != null) ? eventLog.Source : string.Empty) { this.eventLog = eventLog; } ///Initializes a new instance of the ///class using the /// specified event log. /// public EventLogTraceListener(string source) { eventLog = new EventLog(); eventLog.Source = source; } ///Initializes a new instance of the ///class using the /// specified source. /// public EventLog EventLog { get { return eventLog; } set { eventLog = value; } } ///Gets or sets the event log to write to. ////// public override string Name { get { if (nameSet == false && eventLog != null) { nameSet = true; base.Name = eventLog.Source; } return base.Name; } set { nameSet = true; base.Name = value; } } ///Gets or sets the /// name of this trace listener. ////// public override void Close() { if (eventLog != null) eventLog.Close(); } ///Closes the text writer so that it no longer receives tracing or /// debugging output. ////// /// protected override void Dispose(bool disposing) { if (disposing) this.Close(); } ////// public override void Write(string message) { if (eventLog != null) eventLog.WriteEntry(message); } ///Writes a message to this instance's event log. ////// public override void WriteLine(string message) { Write(message); } [ ComVisible(false) ] public override void TraceEvent(TraceEventCache eventCache, string source, TraceEventType severity, int id, string format, params object[] args) { if (Filter != null && !Filter.ShouldTrace(eventCache, source, severity, id, format, args)) return; EventInstance data = CreateEventInstance(severity, id); if (args == null) { eventLog.WriteEvent(data, format); } else if(String.IsNullOrEmpty(format)) { string[] strings = new string[args.Length]; for (int i=0; iWrites a message to this instance's event log followed by a line terminator. /// The default line terminator is a carriage return followed by a line feed /// (\r\n). ///ushort.MaxValue) id = ushort.MaxValue; // Ideally we need to pick a value other than '0' as zero is // a commonly used EventId by most applications if (id < ushort.MinValue) id = ushort.MinValue; EventInstance data = new EventInstance(id, 0); if (severity == TraceEventType.Error || severity == TraceEventType.Critical) data.EntryType = EventLogEntryType.Error; else if (severity == TraceEventType.Warning) data.EntryType = EventLogEntryType.Warning; else data.EntryType = EventLogEntryType.Information; return data; } } }
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- TextEditorMouse.cs
- RewritingPass.cs
- ConfigurationElementCollection.cs
- SrgsElementFactoryCompiler.cs
- Rethrow.cs
- BamlLocalizationDictionary.cs
- ContainerCodeDomSerializer.cs
- BindingCompleteEventArgs.cs
- ItemType.cs
- ACL.cs
- ManipulationDelta.cs
- EntityRecordInfo.cs
- PerformanceCounterManager.cs
- FormViewInsertEventArgs.cs
- RepeaterCommandEventArgs.cs
- SecurityIdentifierConverter.cs
- UIElementCollection.cs
- TreeNodeEventArgs.cs
- CodeObject.cs
- QueryableFilterRepeater.cs
- LocalIdKeyIdentifierClause.cs
- DataGrid.cs
- DataGridViewRowsRemovedEventArgs.cs
- InvokePatternIdentifiers.cs
- DataGridTable.cs
- IntAverageAggregationOperator.cs
- DateTimeOffsetConverter.cs
- KeyMatchBuilder.cs
- SecurityManager.cs
- BinaryConverter.cs
- FieldInfo.cs
- Stroke.cs
- OleDbCommand.cs
- VirtualDirectoryMapping.cs
- SelectionPatternIdentifiers.cs
- FormatSettings.cs
- EventWaitHandle.cs
- IISMapPath.cs
- WSHttpBinding.cs
- CounterCreationData.cs
- OleDbPermission.cs
- ManagementObjectSearcher.cs
- RecordConverter.cs
- SecurityKeyType.cs
- DesignerDataStoredProcedure.cs
- BasePattern.cs
- ProcessRequestAsyncResult.cs
- Quaternion.cs
- NetStream.cs
- Vector3D.cs
- AttributeTable.cs
- XmlAnyElementAttribute.cs
- httpstaticobjectscollection.cs
- RightsManagementManager.cs
- FileRegion.cs
- TemplateNameScope.cs
- ExpandCollapsePattern.cs
- Freezable.cs
- PointAnimationUsingKeyFrames.cs
- TabRenderer.cs
- SoapTransportImporter.cs
- XNodeValidator.cs
- QilIterator.cs
- Interlocked.cs
- Connection.cs
- SqlIdentifier.cs
- MbpInfo.cs
- GeneralTransform2DTo3DTo2D.cs
- PointLightBase.cs
- XmlSchemaAppInfo.cs
- RuleSettingsCollection.cs
- XmlExceptionHelper.cs
- PrintDialog.cs
- FastPropertyAccessor.cs
- TextProperties.cs
- TextTrailingCharacterEllipsis.cs
- GridView.cs
- SharedPerformanceCounter.cs
- NavigationProperty.cs
- OracleString.cs
- IDReferencePropertyAttribute.cs
- streamingZipPartStream.cs
- UnsafeNativeMethods.cs
- BaseDataListComponentEditor.cs
- Int16.cs
- PrivilegedConfigurationManager.cs
- DropSourceBehavior.cs
- OdbcEnvironmentHandle.cs
- ChtmlPhoneCallAdapter.cs
- KeyTime.cs
- WmfPlaceableFileHeader.cs
- RightsManagementSuppressedStream.cs
- ModuleConfigurationInfo.cs
- CursorInteropHelper.cs
- SegmentTree.cs
- XmlSchemaImporter.cs
- TypeConverter.cs
- RefreshEventArgs.cs
- HtmlLink.cs
- CodeValidator.cs