Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Xml / System / Xml / XPath / Internal / NodeFunctions.cs / 1 / NodeFunctions.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- namespace MS.Internal.Xml.XPath { using System; using System.Xml; using System.Xml.XPath; using System.Diagnostics; using System.Globalization; using System.Xml.Xsl; using FT = MS.Internal.Xml.XPath.Function.FunctionType; internal sealed class NodeFunctions : ValueQuery { Query arg = null; FT funcType; XsltContext xsltContext; public NodeFunctions(FT funcType, Query arg) { this.funcType = funcType; this.arg = arg; } public override void SetXsltContext(XsltContext context){ this.xsltContext = context.Whitespace ? context : null; if (arg != null) { arg.SetXsltContext(context); } } private XPathNavigator EvaluateArg(XPathNodeIterator context) { if (arg == null) { return context.Current; } arg.Evaluate(context); return arg.Advance(); } public override object Evaluate(XPathNodeIterator context) { XPathNavigator argVal; switch (funcType) { case FT.FuncPosition: return (double)context.CurrentPosition; case FT.FuncLast: return (double)context.Count; case FT.FuncNameSpaceUri: argVal = EvaluateArg(context); if (argVal != null) { return argVal.NamespaceURI; } break; case FT.FuncLocalName: argVal = EvaluateArg(context); if (argVal != null) { return argVal.LocalName; } break; case FT.FuncName : argVal = EvaluateArg(context); if (argVal != null) { return argVal.Name; } break; case FT.FuncCount: arg.Evaluate(context); int count = 0; if (xsltContext != null) { XPathNavigator nav; while ((nav = arg.Advance()) != null) { if (nav.NodeType != XPathNodeType.Whitespace || xsltContext.PreserveWhitespace(nav)) { count++; } } } else { while (arg.Advance() != null) { count++; } } return (double) count; } return string.Empty; } public override XPathResultType StaticType { get { return Function.ReturnTypes[(int)funcType]; } } public override XPathNodeIterator Clone() { NodeFunctions method = new NodeFunctions(funcType, Clone(arg)); method.xsltContext = this.xsltContext; return method; } public override void PrintQuery(XmlWriter w) { w.WriteStartElement(this.GetType().Name); w.WriteAttributeString("name", funcType.ToString()); if (arg != null) { arg.PrintQuery(w); } w.WriteEndElement(); } } } // 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
- ZipPackage.cs
- TextTreeText.cs
- BinaryObjectWriter.cs
- TextRangeEditTables.cs
- SafeCryptoHandles.cs
- ThrowHelper.cs
- TcpAppDomainProtocolHandler.cs
- MemoryRecordBuffer.cs
- MDIClient.cs
- StylusButtonCollection.cs
- DataChangedEventManager.cs
- GregorianCalendar.cs
- SweepDirectionValidation.cs
- ScaleTransform3D.cs
- HtmlMeta.cs
- AdornerHitTestResult.cs
- MouseButton.cs
- CombinedGeometry.cs
- SecurityKeyType.cs
- DBCommandBuilder.cs
- __TransparentProxy.cs
- WebDisplayNameAttribute.cs
- ParsedAttributeCollection.cs
- XmlTextReaderImplHelpers.cs
- InkPresenter.cs
- FileDialog.cs
- SerialStream.cs
- DataControlImageButton.cs
- COM2Enum.cs
- MaskDesignerDialog.cs
- CodeDelegateCreateExpression.cs
- LocalizationParserHooks.cs
- IndexedGlyphRun.cs
- XPathDocumentIterator.cs
- TextElementEnumerator.cs
- ExecutionEngineException.cs
- ConfigurationPropertyCollection.cs
- Content.cs
- MappingSource.cs
- ScrollBarAutomationPeer.cs
- XmlText.cs
- PropertyMapper.cs
- NumberAction.cs
- DLinqDataModelProvider.cs
- XhtmlBasicSelectionListAdapter.cs
- Figure.cs
- DataGridViewCellEventArgs.cs
- EntityDesignerUtils.cs
- ConfigurationErrorsException.cs
- GridViewCancelEditEventArgs.cs
- DelegateArgument.cs
- HtmlTernaryTree.cs
- PrimarySelectionAdorner.cs
- MethodBuilderInstantiation.cs
- ElementsClipboardData.cs
- CaretElement.cs
- SchemaElementDecl.cs
- Deflater.cs
- UnionCqlBlock.cs
- DataObject.cs
- UrlPath.cs
- AspNetPartialTrustHelpers.cs
- ComplexObject.cs
- DataGridViewCellStyleChangedEventArgs.cs
- BindableAttribute.cs
- EncryptedKeyHashIdentifierClause.cs
- CommonDialog.cs
- DependencyObjectType.cs
- WaitHandleCannotBeOpenedException.cs
- BuildProvidersCompiler.cs
- DockingAttribute.cs
- InputScopeManager.cs
- SqlTopReducer.cs
- TableRowGroup.cs
- Configuration.cs
- CodeMethodInvokeExpression.cs
- RectIndependentAnimationStorage.cs
- XmlAnyAttributeAttribute.cs
- XmlDownloadManager.cs
- ToolStripSeparator.cs
- DeploymentExceptionMapper.cs
- PreloadHost.cs
- AQNBuilder.cs
- CaseStatement.cs
- ProbeMatchesApril2005.cs
- HScrollProperties.cs
- StatusBarPanel.cs
- DesignBindingEditor.cs
- ComponentGuaranteesAttribute.cs
- MsdtcClusterUtils.cs
- Reference.cs
- AttributeCollection.cs
- ReferenceConverter.cs
- ObjectListTitleAttribute.cs
- ServiceDurableInstance.cs
- BitmapEffectGroup.cs
- DelegatedStream.cs
- XamlPoint3DCollectionSerializer.cs
- CustomDictionarySources.cs
- ParallelEnumerableWrapper.cs