Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / System / Windows / Markup / ProvideValueServiceProvider.cs / 1305600 / ProvideValueServiceProvider.cs
/****************************************************************************\ * * File: ProvideValueServiceProvider.cs * * ServiceProvider class that is passed into MarkupExtensions.ProvideValue method * that understands the ParserContext. * * Copyright (C) 2006 by Microsoft Corporation. All rights reserved. * \***************************************************************************/ using System; using System.Windows; using System.Windows.Media; using System.Diagnostics; namespace System.Windows.Markup { ////// Base class for all Xaml markup extensions. /// internal class ProvideValueServiceProvider : IServiceProvider, IProvideValueTarget, IXamlTypeResolver, IUriContext, IFreezeFreezables { // Construction internal ProvideValueServiceProvider(ParserContext context) { _context = context; } internal ProvideValueServiceProvider() { } // Set the TargetObject/Property (for use by IProvideValueTarget). internal void SetData(object targetObject, object targetProperty) { _targetObject = targetObject; _targetProperty = targetProperty; } // Clear the TargetObject/Property (after a call to ProvideValue) internal void ClearData() { _targetObject = _targetProperty = null; } // IXamlTypeResolver implementation Type IXamlTypeResolver.Resolve(string qualifiedTypeName) // E.g. foo:Class { return _context.XamlTypeMapper.GetTypeFromBaseString(qualifiedTypeName, _context, true); } // IProvideValueTarget implementation object IProvideValueTarget.TargetObject { get { return _targetObject; } } object IProvideValueTarget.TargetProperty { get { return _targetProperty; } } // IUriContext implementation Uri IUriContext.BaseUri { get { return _context.BaseUri; } set { throw new NotSupportedException(SR.Get(SRID.ParserProvideValueCantSetUri)); } } bool IFreezeFreezables.FreezeFreezables { get { return _context.FreezeFreezables; } } bool IFreezeFreezables.TryFreeze(string value, Freezable freezable) { return _context.TryCacheFreezable(value, freezable); } Freezable IFreezeFreezables.TryGetFreezable(string value) { return _context.TryGetFreezable(value); } // IServiceProvider implementation (this is the way to get to the // above interface implementations). public object GetService(Type service) { // IProvideValueTarget is the only implementation that // doesn't need the ParserContext if( service == typeof(IProvideValueTarget)) { return this as IProvideValueTarget; } if( _context != null ) { if( service == typeof(IXamlTypeResolver)) { return this as IXamlTypeResolver; } else if( service == typeof(IUriContext)) { return this as IUriContext; } else if (service == typeof(IFreezeFreezables)) { return this as IFreezeFreezables; } } return null; } // Data private ParserContext _context = null; private object _targetObject = null; private object _targetProperty = null; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. /****************************************************************************\ * * File: ProvideValueServiceProvider.cs * * ServiceProvider class that is passed into MarkupExtensions.ProvideValue method * that understands the ParserContext. * * Copyright (C) 2006 by Microsoft Corporation. All rights reserved. * \***************************************************************************/ using System; using System.Windows; using System.Windows.Media; using System.Diagnostics; namespace System.Windows.Markup { ////// Base class for all Xaml markup extensions. /// internal class ProvideValueServiceProvider : IServiceProvider, IProvideValueTarget, IXamlTypeResolver, IUriContext, IFreezeFreezables { // Construction internal ProvideValueServiceProvider(ParserContext context) { _context = context; } internal ProvideValueServiceProvider() { } // Set the TargetObject/Property (for use by IProvideValueTarget). internal void SetData(object targetObject, object targetProperty) { _targetObject = targetObject; _targetProperty = targetProperty; } // Clear the TargetObject/Property (after a call to ProvideValue) internal void ClearData() { _targetObject = _targetProperty = null; } // IXamlTypeResolver implementation Type IXamlTypeResolver.Resolve(string qualifiedTypeName) // E.g. foo:Class { return _context.XamlTypeMapper.GetTypeFromBaseString(qualifiedTypeName, _context, true); } // IProvideValueTarget implementation object IProvideValueTarget.TargetObject { get { return _targetObject; } } object IProvideValueTarget.TargetProperty { get { return _targetProperty; } } // IUriContext implementation Uri IUriContext.BaseUri { get { return _context.BaseUri; } set { throw new NotSupportedException(SR.Get(SRID.ParserProvideValueCantSetUri)); } } bool IFreezeFreezables.FreezeFreezables { get { return _context.FreezeFreezables; } } bool IFreezeFreezables.TryFreeze(string value, Freezable freezable) { return _context.TryCacheFreezable(value, freezable); } Freezable IFreezeFreezables.TryGetFreezable(string value) { return _context.TryGetFreezable(value); } // IServiceProvider implementation (this is the way to get to the // above interface implementations). public object GetService(Type service) { // IProvideValueTarget is the only implementation that // doesn't need the ParserContext if( service == typeof(IProvideValueTarget)) { return this as IProvideValueTarget; } if( _context != null ) { if( service == typeof(IXamlTypeResolver)) { return this as IXamlTypeResolver; } else if( service == typeof(IUriContext)) { return this as IUriContext; } else if (service == typeof(IFreezeFreezables)) { return this as IFreezeFreezables; } } return null; } // Data private ParserContext _context = null; private object _targetObject = null; private object _targetProperty = null; } } // 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
- ApplicationTrust.cs
- SafeRightsManagementQueryHandle.cs
- MessageQueueConverter.cs
- TypeLoadException.cs
- Base64Stream.cs
- HtmlTableRowCollection.cs
- InProcStateClientManager.cs
- FlowDocument.cs
- FileAuthorizationModule.cs
- Compensate.cs
- LeftCellWrapper.cs
- SvcFileManager.cs
- NamespaceMapping.cs
- SecurityToken.cs
- CopyOnWriteList.cs
- ZipIOZip64EndOfCentralDirectoryBlock.cs
- Exceptions.cs
- SecurityManager.cs
- _TLSstream.cs
- StaticDataManager.cs
- UpDownBase.cs
- AuthenticationException.cs
- OciLobLocator.cs
- EventLogEntryCollection.cs
- EventsTab.cs
- BrowserDefinition.cs
- FileVersionInfo.cs
- RegexGroupCollection.cs
- FindProgressChangedEventArgs.cs
- DesignerDataConnection.cs
- XmlTextReaderImpl.cs
- BaseValidatorDesigner.cs
- XmlSchemaObjectCollection.cs
- UpWmlMobileTextWriter.cs
- Repeater.cs
- Dynamic.cs
- PieceDirectory.cs
- TextBox.cs
- TextProviderWrapper.cs
- DynamicObject.cs
- MessageDecoder.cs
- SyndicationDeserializer.cs
- CustomTypeDescriptor.cs
- FtpWebResponse.cs
- OdbcConnectionHandle.cs
- Zone.cs
- Automation.cs
- AutoGeneratedFieldProperties.cs
- ToolStripProgressBar.cs
- StrokeIntersection.cs
- CustomErrorCollection.cs
- StructuralType.cs
- CompModSwitches.cs
- SystemIcmpV6Statistics.cs
- DataGridViewRowHeaderCell.cs
- KeySplineConverter.cs
- TransactionalPackage.cs
- CorrelationManager.cs
- IgnoreFlushAndCloseStream.cs
- ElementUtil.cs
- XPathExpr.cs
- CommonProperties.cs
- WeakEventTable.cs
- AnonymousIdentificationModule.cs
- ComponentSerializationService.cs
- CacheSection.cs
- Trigger.cs
- TypedReference.cs
- SafeEventLogWriteHandle.cs
- ImplicitInputBrush.cs
- Adorner.cs
- CodeSubDirectory.cs
- UriParserTemplates.cs
- GenericTextProperties.cs
- NativeMethods.cs
- ClientTargetCollection.cs
- SqlDuplicator.cs
- TextBoxLine.cs
- ControlCollection.cs
- GeneralTransformCollection.cs
- ErasingStroke.cs
- XmlSerializerSection.cs
- BulletedListEventArgs.cs
- FormViewModeEventArgs.cs
- SelectionWordBreaker.cs
- securitycriticaldataformultiplegetandset.cs
- GridViewCommandEventArgs.cs
- XmlEventCache.cs
- PointConverter.cs
- XmlWrappingReader.cs
- ImageMapEventArgs.cs
- StringResourceManager.cs
- SettingsPropertyIsReadOnlyException.cs
- TableParagraph.cs
- PrePrepareMethodAttribute.cs
- XmlUtilWriter.cs
- ObjectDataSourceSelectingEventArgs.cs
- HtmlTextArea.cs
- ZipIOZip64EndOfCentralDirectoryBlock.cs
- HandleCollector.cs