Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / fx / src / Xml / System / Xml / XPath / Internal / DescendantOverDescendantQuery.cs / 1 / DescendantOverDescendantQuery.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; // DescendantOverDescendantQuery: for each input it looks for the topmost descendents that matches to ns:name // This is posible when query which has this query as its input (child query) is descendent as well. // Work of this query doesn't depend on DOD of its input. // It doesn't garate DOD of the output even when input is DOD. internal sealed class DescendantOverDescendantQuery : DescendantBaseQuery { private int level = 0; public DescendantOverDescendantQuery(Query qyParent, bool matchSelf, string name, string prefix, XPathNodeType typeTest, bool abbrAxis) : base(qyParent, name, prefix, typeTest, matchSelf, abbrAxis) {} private DescendantOverDescendantQuery(DescendantOverDescendantQuery other) : base(other) { this.level = other.level; } public override void Reset() { level = 0; base.Reset(); } public override XPathNavigator Advance() { while (true) { if (level == 0) { currentNode = qyInput.Advance(); position = 0; if (currentNode == null) { return null; } if (matchSelf && matches(currentNode)) { position = 1; return currentNode; } currentNode = currentNode.Clone(); if (! MoveToFirstChild()) { continue; } } else { if (!MoveUpUntillNext()) { continue; } } do { if (matches(currentNode)) { position++; return currentNode; } } while (MoveToFirstChild()); } } private bool MoveToFirstChild() { if (currentNode.MoveToFirstChild()) { level++; return true; } return false; } private bool MoveUpUntillNext() { // move up untill we can move next while (! currentNode.MoveToNext()) { -- level; if (level == 0) { return false; } bool result = currentNode.MoveToParent(); Debug.Assert(result, "Algorithm error, We always should be able to move up if level > 0"); } return true; } public override XPathNodeIterator Clone() { return new DescendantOverDescendantQuery(this); } } } // 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
- ImplicitInputBrush.cs
- StretchValidation.cs
- StateMachineDesignerPaint.cs
- TypeDelegator.cs
- DataGridColumnCollection.cs
- AndMessageFilter.cs
- IIS7WorkerRequest.cs
- IncrementalHitTester.cs
- UndirectedGraph.cs
- Membership.cs
- CodeAttributeDeclaration.cs
- WebHttpDispatchOperationSelector.cs
- FileSystemInfo.cs
- Certificate.cs
- ParameterCollection.cs
- RawMouseInputReport.cs
- OleDbException.cs
- ContractCodeDomInfo.cs
- TextElementEditingBehaviorAttribute.cs
- WorkflowInstance.cs
- UDPClient.cs
- WsatServiceCertificate.cs
- SourceExpressionException.cs
- ValueSerializerAttribute.cs
- DrawingDrawingContext.cs
- Claim.cs
- OneOf.cs
- TraceSource.cs
- UserControlBuildProvider.cs
- XmlDataLoader.cs
- ArraySortHelper.cs
- ProfessionalColorTable.cs
- AppearanceEditorPart.cs
- SqlDataSourceView.cs
- SwitchElementsCollection.cs
- OutKeywords.cs
- HtmlInputSubmit.cs
- localization.cs
- ButtonBase.cs
- MenuItemBinding.cs
- hwndwrapper.cs
- DesignTableCollection.cs
- BinaryReader.cs
- NetDispatcherFaultException.cs
- ComponentCollection.cs
- AuthenticationManager.cs
- DependencyObjectCodeDomSerializer.cs
- WebPartHelpVerb.cs
- TextTreeTextElementNode.cs
- Int32Rect.cs
- Grant.cs
- ClientData.cs
- NotConverter.cs
- _ProxyChain.cs
- SqlBulkCopy.cs
- GridItem.cs
- PostBackOptions.cs
- DataSet.cs
- ItemsPresenter.cs
- UnsafeNativeMethods.cs
- AttachedPropertyBrowsableForTypeAttribute.cs
- CustomErrorCollection.cs
- SingleKeyFrameCollection.cs
- HttpHeaderCollection.cs
- EncodingTable.cs
- SizeConverter.cs
- CodeArrayCreateExpression.cs
- ErrorLog.cs
- OperationParameterInfo.cs
- _ServiceNameStore.cs
- RelatedCurrencyManager.cs
- RightsManagementEncryptedStream.cs
- XhtmlStyleClass.cs
- Types.cs
- UIAgentRequest.cs
- ChannelAcceptor.cs
- XmlLanguageConverter.cs
- DocumentPageTextView.cs
- DefaultObjectSerializer.cs
- SQLResource.cs
- TraceHandlerErrorFormatter.cs
- TemplateField.cs
- WorkflowControlClient.cs
- FontNameConverter.cs
- CodeSnippetTypeMember.cs
- ProgressBarAutomationPeer.cs
- Facet.cs
- ConfigurationLoaderException.cs
- PrintPreviewGraphics.cs
- ProxyWebPart.cs
- HtmlInputHidden.cs
- PieceNameHelper.cs
- CodeTypeDeclaration.cs
- SettingsSection.cs
- HttpCookieCollection.cs
- EmptyReadOnlyDictionaryInternal.cs
- DataGridViewRowDividerDoubleClickEventArgs.cs
- RtfControls.cs
- ButtonBase.cs
- MediaContextNotificationWindow.cs