Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Base / System / Diagnostics / PresentationTraceSources.cs / 1305600 / 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.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- SoapCodeExporter.cs
- DataTableNewRowEvent.cs
- View.cs
- ExtractorMetadata.cs
- StickyNoteHelper.cs
- LookupNode.cs
- ServicesExceptionNotHandledEventArgs.cs
- XmlSchemaSimpleTypeUnion.cs
- CheckBoxRenderer.cs
- SqlCacheDependency.cs
- TimeIntervalCollection.cs
- HttpStreamFormatter.cs
- OracleRowUpdatingEventArgs.cs
- PageContentCollection.cs
- PkcsUtils.cs
- KeyToListMap.cs
- TablePattern.cs
- PenLineJoinValidation.cs
- DataServiceConfiguration.cs
- EntityViewGenerationAttribute.cs
- Point.cs
- SpeechDetectedEventArgs.cs
- CodeVariableDeclarationStatement.cs
- SafeBitVector32.cs
- TextTreeDeleteContentUndoUnit.cs
- ServiceAuthorizationBehavior.cs
- BaseDataList.cs
- SoapUnknownHeader.cs
- Pkcs7Signer.cs
- SqlCommandSet.cs
- RegionIterator.cs
- EntityTypeBase.cs
- Set.cs
- Message.cs
- EditorZone.cs
- TableStyle.cs
- DBPropSet.cs
- BasicHttpBinding.cs
- userdatakeys.cs
- StringStorage.cs
- PropertyMetadata.cs
- TextTreeRootTextBlock.cs
- SaveFileDialog.cs
- HttpCookiesSection.cs
- Compiler.cs
- RewritingValidator.cs
- HtmlInputCheckBox.cs
- ControlPager.cs
- InvalidCommandTreeException.cs
- Stylesheet.cs
- IISUnsafeMethods.cs
- CapabilitiesState.cs
- ImageIndexConverter.cs
- MulticastIPAddressInformationCollection.cs
- SymmetricKeyWrap.cs
- Exceptions.cs
- MsmqInputChannelListenerBase.cs
- DataSetSchema.cs
- TextEncodedRawTextWriter.cs
- ReferenceEqualityComparer.cs
- NetworkInformationException.cs
- Stack.cs
- SystemKeyConverter.cs
- ConfigurationPropertyCollection.cs
- DataGridView.cs
- Assembly.cs
- GridItemPatternIdentifiers.cs
- DocumentGridPage.cs
- TabControlEvent.cs
- ReadWriteObjectLock.cs
- DelayDesigner.cs
- DocumentViewer.cs
- ExplicitDiscriminatorMap.cs
- AppDomainShutdownMonitor.cs
- ThemeDictionaryExtension.cs
- DataGridViewAccessibleObject.cs
- InputBindingCollection.cs
- SoapCodeExporter.cs
- NavigatorInput.cs
- TaiwanLunisolarCalendar.cs
- DataGridColumnFloatingHeader.cs
- JsonWriter.cs
- ProxyAttribute.cs
- WindowsRegion.cs
- DataGridViewTopLeftHeaderCell.cs
- Parallel.cs
- PageScaling.cs
- ReadWriteObjectLock.cs
- PackageStore.cs
- CheckBox.cs
- XsltLoader.cs
- StagingAreaInputItem.cs
- CodeIndexerExpression.cs
- ColumnCollection.cs
- ApplicationContext.cs
- BufferedReadStream.cs
- FacetValueContainer.cs
- WebException.cs
- Set.cs
- CodeTypeOfExpression.cs