Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / wpf / src / Framework / System / Windows / Markup / RoutedEventConverter.cs / 1 / RoutedEventConverter.cs
// Copyright (C) Microsoft Corporation. All rights reserved. using System.ComponentModel; using System.Globalization; using System.Windows; namespace System.Windows.Markup { ////// Type converter for RoutedEvent type /// public sealed class RoutedEventConverter: TypeConverter { ////// Whether we can convert from a given type - this class only converts from string /// public override bool CanConvertFrom(ITypeDescriptorContext typeDescriptorContext, Type sourceType) { // We can only convert from a string and that too only if we have all the contextual information // Note: Sometimes even the serializer calls CanConvertFrom in order // to determine if it is a valid converter to use for serialization. if (sourceType == typeof(string) && (typeDescriptorContext is TypeConvertContext)) { return true; } return false; } ////// Whether we can convert to a given type - this class only converts to string /// public override bool CanConvertTo(ITypeDescriptorContext typeDescriptorContext, Type destinationType) { return false; } ////// Convert a string like "Button.Click" into the corresponding RoutedEvent /// public override object ConvertFrom(ITypeDescriptorContext typeDescriptorContext, CultureInfo cultureInfo, object source) { string routedEventName = source as string; if( routedEventName != null ) { IServiceProvider serviceProvier = typeDescriptorContext as IServiceProvider; if (serviceProvier != null) { TypeConvertContext typeConvertContext = typeDescriptorContext as TypeConvertContext; ParserContext parserContext = typeConvertContext == null ? null : typeConvertContext.ParserContext; if( parserContext != null ) { XamlTypeMapper xamlTypeMapper = parserContext.XamlTypeMapper; if( xamlTypeMapper != null ) { RoutedEvent routedEvent; string nameSpace; nameSpace = ExtractNamespaceString( ref routedEventName, parserContext ); // Verify that there's at least one period. (A simple // but not foolproof check for "[class].[event]") if( routedEventName.IndexOf('.') != -1 ) { // When xamlTypeMapper is told to look for RoutedEventID, // we need "[class].[event]" because at this point we // have no idea what the owner type might be. // Fortunately, given "[class].[event]" xamlTypeMapper.GetRoutedEventID // can figure things out, so at this point we can pass // in 'null' for the ownerType and things will still work. routedEvent = xamlTypeMapper.GetRoutedEvent(null /* ownerType */, nameSpace, routedEventName); return routedEvent; } } } } } // Falling through here means we are unable to perform the conversion. throw GetConvertFromException(source); } ////// Convert a RoutedEventID into a XAML string like "Button.Click" /// public override object ConvertTo(ITypeDescriptorContext typeDescriptorContext, CultureInfo cultureInfo, object value, Type destinationType) { throw GetConvertToException(value, destinationType); } // This routine is copied from TemplateBamlRecordReader. This functionality // is planned to be part of the utilities exposed by the parser, eliminating // the need to duplicate code. See task #18279 private string ExtractNamespaceString( ref string nameString, ParserContext parserContext ) { // The colon is what we look for to determine if there's a namespace prefix specifier. int nsIndex = nameString.IndexOf(':'); string nsPrefix = string.Empty; if( nsIndex != -1 ) { // Found a namespace prefix separator, so create replacement propertyName. // String processing - split "foons" from "BarClass.BazProp" nsPrefix = nameString.Substring (0, nsIndex); nameString = nameString.Substring (nsIndex + 1); } // Find the namespace, even if its the default one string namespaceURI = parserContext.XmlnsDictionary[nsPrefix]; if (namespaceURI == null) { throw new ArgumentException(SR.Get(SRID.ParserPrefixNSProperty, nsPrefix, nameString)); } return namespaceURI; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. // Copyright (C) Microsoft Corporation. All rights reserved. using System.ComponentModel; using System.Globalization; using System.Windows; namespace System.Windows.Markup { ////// Type converter for RoutedEvent type /// public sealed class RoutedEventConverter: TypeConverter { ////// Whether we can convert from a given type - this class only converts from string /// public override bool CanConvertFrom(ITypeDescriptorContext typeDescriptorContext, Type sourceType) { // We can only convert from a string and that too only if we have all the contextual information // Note: Sometimes even the serializer calls CanConvertFrom in order // to determine if it is a valid converter to use for serialization. if (sourceType == typeof(string) && (typeDescriptorContext is TypeConvertContext)) { return true; } return false; } ////// Whether we can convert to a given type - this class only converts to string /// public override bool CanConvertTo(ITypeDescriptorContext typeDescriptorContext, Type destinationType) { return false; } ////// Convert a string like "Button.Click" into the corresponding RoutedEvent /// public override object ConvertFrom(ITypeDescriptorContext typeDescriptorContext, CultureInfo cultureInfo, object source) { string routedEventName = source as string; if( routedEventName != null ) { IServiceProvider serviceProvier = typeDescriptorContext as IServiceProvider; if (serviceProvier != null) { TypeConvertContext typeConvertContext = typeDescriptorContext as TypeConvertContext; ParserContext parserContext = typeConvertContext == null ? null : typeConvertContext.ParserContext; if( parserContext != null ) { XamlTypeMapper xamlTypeMapper = parserContext.XamlTypeMapper; if( xamlTypeMapper != null ) { RoutedEvent routedEvent; string nameSpace; nameSpace = ExtractNamespaceString( ref routedEventName, parserContext ); // Verify that there's at least one period. (A simple // but not foolproof check for "[class].[event]") if( routedEventName.IndexOf('.') != -1 ) { // When xamlTypeMapper is told to look for RoutedEventID, // we need "[class].[event]" because at this point we // have no idea what the owner type might be. // Fortunately, given "[class].[event]" xamlTypeMapper.GetRoutedEventID // can figure things out, so at this point we can pass // in 'null' for the ownerType and things will still work. routedEvent = xamlTypeMapper.GetRoutedEvent(null /* ownerType */, nameSpace, routedEventName); return routedEvent; } } } } } // Falling through here means we are unable to perform the conversion. throw GetConvertFromException(source); } ////// Convert a RoutedEventID into a XAML string like "Button.Click" /// public override object ConvertTo(ITypeDescriptorContext typeDescriptorContext, CultureInfo cultureInfo, object value, Type destinationType) { throw GetConvertToException(value, destinationType); } // This routine is copied from TemplateBamlRecordReader. This functionality // is planned to be part of the utilities exposed by the parser, eliminating // the need to duplicate code. See task #18279 private string ExtractNamespaceString( ref string nameString, ParserContext parserContext ) { // The colon is what we look for to determine if there's a namespace prefix specifier. int nsIndex = nameString.IndexOf(':'); string nsPrefix = string.Empty; if( nsIndex != -1 ) { // Found a namespace prefix separator, so create replacement propertyName. // String processing - split "foons" from "BarClass.BazProp" nsPrefix = nameString.Substring (0, nsIndex); nameString = nameString.Substring (nsIndex + 1); } // Find the namespace, even if its the default one string namespaceURI = parserContext.XmlnsDictionary[nsPrefix]; if (namespaceURI == null) { throw new ArgumentException(SR.Get(SRID.ParserPrefixNSProperty, nsPrefix, nameString)); } return namespaceURI; } } } // 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
- PageThemeCodeDomTreeGenerator.cs
- PieceNameHelper.cs
- NativeCppClassAttribute.cs
- CommandManager.cs
- SqlMetaData.cs
- Rijndael.cs
- TagMapCollection.cs
- Attributes.cs
- ServiceDebugElement.cs
- PriorityRange.cs
- XmlSortKey.cs
- DescendantBaseQuery.cs
- TextEncodedRawTextWriter.cs
- Vector3DCollection.cs
- AlphaSortedEnumConverter.cs
- AutomationFocusChangedEventArgs.cs
- SByte.cs
- BatchParser.cs
- securitycriticaldata.cs
- DataGridViewCellValueEventArgs.cs
- SecurityUtils.cs
- XmlBinaryReaderSession.cs
- ScrollContentPresenter.cs
- OdbcFactory.cs
- LineGeometry.cs
- ToolStripContainer.cs
- EntityClassGenerator.cs
- DummyDataSource.cs
- PassportIdentity.cs
- GrammarBuilderPhrase.cs
- PatternMatcher.cs
- SelfIssuedAuthRSAPKCS1SignatureFormatter.cs
- SchemaElementLookUpTable.cs
- TakeQueryOptionExpression.cs
- CodeTryCatchFinallyStatement.cs
- FixedSOMLineRanges.cs
- Transactions.cs
- ServicePointManagerElement.cs
- TableMethodGenerator.cs
- PointCollection.cs
- WizardPanel.cs
- SiteMapNodeItemEventArgs.cs
- CalendarTable.cs
- Ref.cs
- TextEditorMouse.cs
- IdentityNotMappedException.cs
- PolicyLevel.cs
- SelectedCellsChangedEventArgs.cs
- WorkflowElementDialog.cs
- RefExpr.cs
- StringUtil.cs
- State.cs
- Stackframe.cs
- RegexReplacement.cs
- RewritingPass.cs
- ExpressionVisitor.cs
- PartitionResolver.cs
- SubMenuStyleCollection.cs
- LOSFormatter.cs
- GlyphingCache.cs
- EntityDataSourceState.cs
- ChameleonKey.cs
- ParseHttpDate.cs
- ObjectManager.cs
- HybridObjectCache.cs
- TreeNode.cs
- TreeViewImageKeyConverter.cs
- HMACSHA512.cs
- DataPagerCommandEventArgs.cs
- MediaPlayerState.cs
- AnnotationMap.cs
- WebPartConnectionCollection.cs
- InkCanvasSelectionAdorner.cs
- ServiceEndpoint.cs
- XmlQueryTypeFactory.cs
- ConfigurationFileMap.cs
- GeneralTransform3DGroup.cs
- FilteredSchemaElementLookUpTable.cs
- XmlSchemaType.cs
- NullableFloatSumAggregationOperator.cs
- TabControlAutomationPeer.cs
- RelationshipConstraintValidator.cs
- DataGridViewImageColumn.cs
- Matrix3D.cs
- WebScriptServiceHostFactory.cs
- UnsafeNativeMethods.cs
- ChangePassword.cs
- ServiceOperationListItem.cs
- ConstraintEnumerator.cs
- ConfigXmlSignificantWhitespace.cs
- ExceptionUtil.cs
- WindowsProgressbar.cs
- SoapClientProtocol.cs
- MetaDataInfo.cs
- SendMailErrorEventArgs.cs
- TextLine.cs
- TreeNodeStyle.cs
- FreezableCollection.cs
- DbModificationClause.cs
- DecimalConverter.cs