Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Base / System / Diagnostics / PresentationTraceSources.cs / 2 / 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
- SrgsNameValueTag.cs
- InertiaExpansionBehavior.cs
- RelationshipConverter.cs
- CommandEventArgs.cs
- NonceCache.cs
- NumberFormatter.cs
- HttpRuntime.cs
- __FastResourceComparer.cs
- ValidationHelper.cs
- COM2EnumConverter.cs
- BrowserCapabilitiesFactory.cs
- PtsContext.cs
- BaseInfoTable.cs
- InstanceNotFoundException.cs
- MemberMaps.cs
- BitmapEffectRenderDataResource.cs
- WSSecurityOneDotZeroReceiveSecurityHeader.cs
- HybridObjectCache.cs
- PartialClassGenerationTask.cs
- StdValidatorsAndConverters.cs
- InternalMappingException.cs
- DataGridLinkButton.cs
- ValidatingReaderNodeData.cs
- SwitchLevelAttribute.cs
- ExpressionBuilderContext.cs
- FilterableAttribute.cs
- IsolatedStoragePermission.cs
- DefaultTypeArgumentAttribute.cs
- DbReferenceCollection.cs
- IndexerNameAttribute.cs
- OleDbCommandBuilder.cs
- ZoneLinkButton.cs
- ResourceContainer.cs
- ObjectRef.cs
- NativeMethods.cs
- ITextView.cs
- ElementAtQueryOperator.cs
- BinaryObjectReader.cs
- RotateTransform3D.cs
- SdlChannelSink.cs
- WizardPanel.cs
- VectorAnimationUsingKeyFrames.cs
- MenuItemStyleCollectionEditor.cs
- PageAsyncTaskManager.cs
- SharedPersonalizationStateInfo.cs
- TemplateBuilder.cs
- DialogWindow.cs
- XhtmlBasicPageAdapter.cs
- WindowsRichEdit.cs
- ErrorRuntimeConfig.cs
- OdbcCommand.cs
- ClientSettingsProvider.cs
- VirtualizingPanel.cs
- DataBinder.cs
- DefaultPrintController.cs
- Facet.cs
- XmlArrayItemAttributes.cs
- TableHeaderCell.cs
- QueryOutputWriterV1.cs
- TextSelection.cs
- MenuItem.cs
- DesignerToolboxInfo.cs
- QueryResult.cs
- ResourceDisplayNameAttribute.cs
- QilGenerator.cs
- PeerTransportListenAddressConverter.cs
- DSASignatureDeformatter.cs
- ScriptRegistrationManager.cs
- ImageSourceValueSerializer.cs
- OleDbInfoMessageEvent.cs
- PropertyDescriptor.cs
- PropertyInfoSet.cs
- Clause.cs
- Form.cs
- PaintValueEventArgs.cs
- ToolStripStatusLabel.cs
- RefreshEventArgs.cs
- AffineTransform3D.cs
- UndirectedGraph.cs
- DesignTimeVisibleAttribute.cs
- ContextMenu.cs
- SQlBooleanStorage.cs
- PlacementWorkspace.cs
- MergeLocalizationDirectives.cs
- QilFunction.cs
- CapabilitiesPattern.cs
- LayoutInformation.cs
- SortKey.cs
- Transform3D.cs
- DesignObjectWrapper.cs
- ColumnResult.cs
- SRGSCompiler.cs
- Relationship.cs
- Freezable.cs
- ProfilePropertySettings.cs
- CompiledELinqQueryState.cs
- SiteMapDataSourceView.cs
- StylusDevice.cs
- TriggerActionCollection.cs
- SerializationSectionGroup.cs