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
- ComponentEditorForm.cs
- WorkflowMessageEventHandler.cs
- DbCommandTree.cs
- EncoderParameter.cs
- WindowsIdentity.cs
- InitiatorServiceModelSecurityTokenRequirement.cs
- ToolStripPanelRow.cs
- ResourceIDHelper.cs
- ExtenderProvidedPropertyAttribute.cs
- RoutingEndpointTrait.cs
- MouseActionValueSerializer.cs
- CompiledIdentityConstraint.cs
- IteratorFilter.cs
- CodeIterationStatement.cs
- MessageBox.cs
- KeyValueInternalCollection.cs
- SamlAdvice.cs
- XmlWellformedWriter.cs
- WindowsPen.cs
- CompiledRegexRunner.cs
- DropShadowEffect.cs
- StringUtil.cs
- LinqDataSourceInsertEventArgs.cs
- EdmRelationshipRoleAttribute.cs
- InvalidProgramException.cs
- SecureStringHasher.cs
- SqlTypesSchemaImporter.cs
- QilReplaceVisitor.cs
- IPipelineRuntime.cs
- TablePattern.cs
- ObjectDataSourceMethodEventArgs.cs
- IfAction.cs
- TemplateControlBuildProvider.cs
- ConfigXmlElement.cs
- CroppedBitmap.cs
- MergeEnumerator.cs
- FormViewInsertedEventArgs.cs
- ObjectNotFoundException.cs
- ObjectFactoryCodeDomTreeGenerator.cs
- CFStream.cs
- TextTreeUndo.cs
- SamlAudienceRestrictionCondition.cs
- ColorIndependentAnimationStorage.cs
- AxisAngleRotation3D.cs
- Compiler.cs
- ContentTypeSettingClientMessageFormatter.cs
- BrowserDefinitionCollection.cs
- _SslState.cs
- _Semaphore.cs
- HttpProfileBase.cs
- WizardForm.cs
- TransformationRules.cs
- ContextActivityUtils.cs
- FontFamily.cs
- PropertyGridView.cs
- ProfileBuildProvider.cs
- PropertyTab.cs
- UserControl.cs
- DefaultHttpHandler.cs
- GenericArgumentsUpdater.cs
- Filter.cs
- StringAnimationBase.cs
- TrackingDataItemValue.cs
- HttpGetServerProtocol.cs
- ObjRef.cs
- PingOptions.cs
- OleDbException.cs
- DoubleAnimationClockResource.cs
- TextServicesProperty.cs
- ObfuscateAssemblyAttribute.cs
- ContextMenuStrip.cs
- OracleConnection.cs
- MailHeaderInfo.cs
- DiscoveryClientDuplexChannel.cs
- UITypeEditors.cs
- HwndSource.cs
- BoundsDrawingContextWalker.cs
- EditorPartDesigner.cs
- Matrix3D.cs
- EventArgs.cs
- DetailsViewDeletedEventArgs.cs
- Panel.cs
- SearchForVirtualItemEventArgs.cs
- FunctionImportElement.cs
- FontFamily.cs
- BitmapEffectGroup.cs
- WindowsContainer.cs
- AdapterDictionary.cs
- RoutedUICommand.cs
- WindowsAuthenticationEventArgs.cs
- Transform.cs
- SafeRightsManagementEnvironmentHandle.cs
- DetailsViewInsertedEventArgs.cs
- MobileCategoryAttribute.cs
- DesignerTransactionCloseEvent.cs
- TextEffect.cs
- WarningException.cs
- AppDomainUnloadedException.cs
- DbParameterCollectionHelper.cs
- PrinterUnitConvert.cs