Code:
/ FX-1434 / FX-1434 / 1.0 / 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
- CustomWebEventKey.cs
- ValidationHelper.cs
- CompressEmulationStream.cs
- InvokeCompletedEventArgs.cs
- DataServiceQueryOfT.cs
- ComplexPropertyEntry.cs
- OracleException.cs
- ServiceActivationException.cs
- IndexedString.cs
- CompensateDesigner.cs
- SqlException.cs
- DBNull.cs
- MimeMultiPart.cs
- XamlToRtfWriter.cs
- Message.cs
- AppearanceEditorPart.cs
- MTConfigUtil.cs
- Crc32Helper.cs
- Section.cs
- AutomationIdentifier.cs
- EUCJPEncoding.cs
- Cursor.cs
- SafeViewOfFileHandle.cs
- ExpressionBuilderCollection.cs
- Converter.cs
- IriParsingElement.cs
- CustomAttribute.cs
- SqlCacheDependencySection.cs
- DynamicArgumentDesigner.xaml.cs
- Rectangle.cs
- Msec.cs
- HierarchicalDataTemplate.cs
- RuntimeArgumentHandle.cs
- WorkflowPageSetupDialog.cs
- ColorTypeConverter.cs
- UserControl.cs
- StylusShape.cs
- DataTableCollection.cs
- StrokeCollectionConverter.cs
- NonBatchDirectoryCompiler.cs
- OpacityConverter.cs
- Camera.cs
- TreeNodeMouseHoverEvent.cs
- WmlLabelAdapter.cs
- VectorAnimation.cs
- HttpCookieCollection.cs
- XmlSequenceWriter.cs
- TextServicesHost.cs
- ColorMap.cs
- HostedHttpRequestAsyncResult.cs
- ElasticEase.cs
- MouseBinding.cs
- IOException.cs
- DebuggerAttributes.cs
- SByte.cs
- DefaultAutoFieldGenerator.cs
- ModelPerspective.cs
- CompositeFontFamily.cs
- HttpProcessUtility.cs
- X509ChainElement.cs
- WindowsFormsHostAutomationPeer.cs
- PageRequestManager.cs
- TransformerInfoCollection.cs
- DependencySource.cs
- Fonts.cs
- ArrowControl.xaml.cs
- EnterpriseServicesHelper.cs
- SoapIgnoreAttribute.cs
- Point3D.cs
- AutomationPropertyChangedEventArgs.cs
- HitTestResult.cs
- HMACRIPEMD160.cs
- Asn1Utilities.cs
- RankException.cs
- PrtCap_Public_Simple.cs
- SafeCertificateContext.cs
- InternalBufferOverflowException.cs
- __Filters.cs
- FieldNameLookup.cs
- errorpatternmatcher.cs
- DataPointer.cs
- InternalPermissions.cs
- XamlStyleSerializer.cs
- BounceEase.cs
- CodeTypeParameter.cs
- DispatcherObject.cs
- XmlAutoDetectWriter.cs
- Image.cs
- PointLightBase.cs
- PngBitmapDecoder.cs
- FormParameter.cs
- FilteredAttributeCollection.cs
- ItemMap.cs
- XmlSchemaComplexContentExtension.cs
- CodeFieldReferenceExpression.cs
- DNS.cs
- RSAPKCS1SignatureFormatter.cs
- Operator.cs
- WindowsListViewSubItem.cs
- FilterFactory.cs