Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Base / System / Diagnostics / PresentationTraceSources.cs / 1 / PresentationTraceSources.cs
/****************************************************************************\ * * File: PresentationTraceSources.cs * * This class provides a public interface to access TraceSources for * enabling/disabling/filtering of trace messages by area. * * The other portion of this partial class is generated using * genTraceSource.pl and AvTraceMessages.txt * * Copyright (C) by Microsoft Corporation. All rights reserved. * \***************************************************************************/ using System.Collections.Generic; using System.Security; using System.Security.Permissions; using MS.Internal; using System.Windows; namespace System.Diagnostics { ////// PresentationTraceLevel - Enum which describes how much detail to trace about a particular object. /// public enum PresentationTraceLevel { ////// Trace no additional information. /// None, ////// Trace some additional information. /// Low, ////// Trace a medium amount of additional information. /// Medium, ////// Trace all available additional information. /// High, } ////// Helper class for retrieving TraceSources /// public static partial class PresentationTraceSources { //----------------------------------------------------- // // Public Properties // //----------------------------------------------------- ////// DependencyProperty for TraceLevel property. /// public static readonly DependencyProperty TraceLevelProperty = DependencyProperty.RegisterAttached( "TraceLevel", typeof(PresentationTraceLevel), typeof(PresentationTraceSources)); ////// Reads the attached property TraceLevel from the given element. /// public static PresentationTraceLevel GetTraceLevel(object element) { return TraceLevelStore.GetTraceLevel(element); } ////// Writes the attached property TraceLevel to the given element. /// public static void SetTraceLevel(object element, PresentationTraceLevel traceLevel) { TraceLevelStore.SetTraceLevel(element, traceLevel); } //----------------------------------------------------- // // Public Methods // //------------------------------------------------------ ////// Refresh TraceSources (re-read config file), creating if necessary. /// // Note: Better would be to separate enable from the Refresh method. public static void Refresh() { // Let AvTrace know that an explicit Refresh has been called. AvTrace.OnRefresh(); // Re-read the .config files System.Diagnostics.Trace.Refresh(); // Initialize any traces classes if needed if (TraceRefresh != null) { TraceRefresh(); } } internal static event TraceRefreshEventHandler TraceRefresh; ////// Critical: /// 1) Asserts for UMC to set trace level. /// /// TreatAsSafe: /// 1) The code path is only invoked when under a debugger /// if the caller can attach a debugger they already have /// unlimited access to the process. Also the only inputs /// to the assert are simply a label for the name. /// [SecurityCritical, SecurityTreatAsSafe] private static TraceSource CreateTraceSource(string sourceName) { // Create the trace source. Whether or not it will actually // trace anything is a decision of the trace source, e.g. it // depends on the app.config file settings. TraceSource source = new TraceSource(sourceName); // If we're attached to the debugger, ensure that at least // warnings/errors are getting traced. if (source.Switch.Level == SourceLevels.Off && AvTrace.IsDebuggerAttached()) { // we need to assert as PT callers under a debugger can invoke this code path // with out having the needed permission to peform this action new SecurityPermission(SecurityPermissionFlag.UnmanagedCode).Assert(); // BlessedAssert try { source.Switch.Level = SourceLevels.Warning; } finally { SecurityPermission.RevertAssert(); } } // returning source after reverting the assert to avoid // using exposed elements under the assert return source; } } internal delegate void TraceRefreshEventHandler(); } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. /****************************************************************************\ * * File: PresentationTraceSources.cs * * This class provides a public interface to access TraceSources for * enabling/disabling/filtering of trace messages by area. * * The other portion of this partial class is generated using * genTraceSource.pl and AvTraceMessages.txt * * Copyright (C) by Microsoft Corporation. All rights reserved. * \***************************************************************************/ using System.Collections.Generic; using System.Security; using System.Security.Permissions; using MS.Internal; using System.Windows; namespace System.Diagnostics { ////// PresentationTraceLevel - Enum which describes how much detail to trace about a particular object. /// public enum PresentationTraceLevel { ////// Trace no additional information. /// None, ////// Trace some additional information. /// Low, ////// Trace a medium amount of additional information. /// Medium, ////// Trace all available additional information. /// High, } ////// Helper class for retrieving TraceSources /// public static partial class PresentationTraceSources { //----------------------------------------------------- // // Public Properties // //----------------------------------------------------- ////// DependencyProperty for TraceLevel property. /// public static readonly DependencyProperty TraceLevelProperty = DependencyProperty.RegisterAttached( "TraceLevel", typeof(PresentationTraceLevel), typeof(PresentationTraceSources)); ////// Reads the attached property TraceLevel from the given element. /// public static PresentationTraceLevel GetTraceLevel(object element) { return TraceLevelStore.GetTraceLevel(element); } ////// Writes the attached property TraceLevel to the given element. /// public static void SetTraceLevel(object element, PresentationTraceLevel traceLevel) { TraceLevelStore.SetTraceLevel(element, traceLevel); } //----------------------------------------------------- // // Public Methods // //------------------------------------------------------ ////// Refresh TraceSources (re-read config file), creating if necessary. /// // Note: Better would be to separate enable from the Refresh method. public static void Refresh() { // Let AvTrace know that an explicit Refresh has been called. AvTrace.OnRefresh(); // Re-read the .config files System.Diagnostics.Trace.Refresh(); // Initialize any traces classes if needed if (TraceRefresh != null) { TraceRefresh(); } } internal static event TraceRefreshEventHandler TraceRefresh; ////// Critical: /// 1) Asserts for UMC to set trace level. /// /// TreatAsSafe: /// 1) The code path is only invoked when under a debugger /// if the caller can attach a debugger they already have /// unlimited access to the process. Also the only inputs /// to the assert are simply a label for the name. /// [SecurityCritical, SecurityTreatAsSafe] private static TraceSource CreateTraceSource(string sourceName) { // Create the trace source. Whether or not it will actually // trace anything is a decision of the trace source, e.g. it // depends on the app.config file settings. TraceSource source = new TraceSource(sourceName); // If we're attached to the debugger, ensure that at least // warnings/errors are getting traced. if (source.Switch.Level == SourceLevels.Off && AvTrace.IsDebuggerAttached()) { // we need to assert as PT callers under a debugger can invoke this code path // with out having the needed permission to peform this action new SecurityPermission(SecurityPermissionFlag.UnmanagedCode).Assert(); // BlessedAssert try { source.Switch.Level = SourceLevels.Warning; } finally { SecurityPermission.RevertAssert(); } } // returning source after reverting the assert to avoid // using exposed elements under the assert return source; } } internal delegate void TraceRefreshEventHandler(); } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- SqlTriggerAttribute.cs
- DataGridViewCellContextMenuStripNeededEventArgs.cs
- XPathNodeIterator.cs
- MachineKeyConverter.cs
- PrinterResolution.cs
- SpellerError.cs
- CompilerHelpers.cs
- DebuggerAttributes.cs
- MetadataCacheItem.cs
- TransportBindingElementImporter.cs
- CommittableTransaction.cs
- XmlByteStreamReader.cs
- MultipartContentParser.cs
- QilStrConcatenator.cs
- GenerateHelper.cs
- dsa.cs
- SystemFonts.cs
- HtmlShim.cs
- COMException.cs
- InheritanceAttribute.cs
- SplineQuaternionKeyFrame.cs
- FixedTextView.cs
- WebPartAuthorizationEventArgs.cs
- oledbconnectionstring.cs
- SoapReflectionImporter.cs
- SecurityKeyIdentifierClause.cs
- NativeMethods.cs
- ValuePatternIdentifiers.cs
- TextTreeRootTextBlock.cs
- EventWaitHandleSecurity.cs
- ListViewTableCell.cs
- IdentityNotMappedException.cs
- FontCacheLogic.cs
- XmlTypeAttribute.cs
- DefaultHttpHandler.cs
- Activity.cs
- CodeRegionDirective.cs
- IndividualDeviceConfig.cs
- ToolStripContentPanelDesigner.cs
- SimpleHandlerBuildProvider.cs
- Converter.cs
- ReadWriteSpinLock.cs
- PathTooLongException.cs
- StackBuilderSink.cs
- SpeakCompletedEventArgs.cs
- JulianCalendar.cs
- DesignerVerbCollection.cs
- SqlException.cs
- DeclarativeConditionsCollection.cs
- ModuleElement.cs
- ErrorRuntimeConfig.cs
- TimelineCollection.cs
- CustomErrorCollection.cs
- OdbcFactory.cs
- TemplateApplicationHelper.cs
- DebugHandleTracker.cs
- BuildProvider.cs
- PenThread.cs
- TextLine.cs
- XamlWriterExtensions.cs
- glyphs.cs
- DatePickerAutomationPeer.cs
- StagingAreaInputItem.cs
- NamespaceMapping.cs
- DataGridViewRowHeaderCell.cs
- VideoDrawing.cs
- RegionInfo.cs
- Point4D.cs
- Message.cs
- DoWorkEventArgs.cs
- BoundColumn.cs
- PropertyMapper.cs
- BasicHttpBinding.cs
- ComponentResourceKeyConverter.cs
- GregorianCalendarHelper.cs
- CellCreator.cs
- UseAttributeSetsAction.cs
- CompositeTypefaceMetrics.cs
- EditorPart.cs
- HGlobalSafeHandle.cs
- TargetConverter.cs
- EventRoute.cs
- ConnectionProviderAttribute.cs
- SqlInternalConnectionTds.cs
- AutomationElementCollection.cs
- TraceSection.cs
- MasterPageParser.cs
- ApplicationServicesHostFactory.cs
- MetadataUtil.cs
- AbsoluteQuery.cs
- InstanceStoreQueryResult.cs
- AdCreatedEventArgs.cs
- TransformPattern.cs
- FactorySettingsElement.cs
- COM2ColorConverter.cs
- ThreadExceptionEvent.cs
- FixedSOMLineRanges.cs
- DetailsViewInsertEventArgs.cs
- SHA384Managed.cs
- WebHeaderCollection.cs