Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / Data / System / NewXml / DataDocumentXPathNavigator.cs / 1 / DataDocumentXPathNavigator.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //[....] //----------------------------------------------------------------------------- namespace System.Xml { using System; using System.Data; using System.Collections; using System.Text; using System.Xml.XPath; using System.Diagnostics; internal sealed class DataDocumentXPathNavigator: XPathNavigator, IHasXmlNode { private XPathNodePointer _curNode; //pointer to remember the current node position private XmlDataDocument _doc; //pointer to remember the root -- can only be XmlDataDocument for DataDocumentXPathNavigator private XPathNodePointer _temp; internal DataDocumentXPathNavigator( XmlDataDocument doc, XmlNode node ) { _curNode = new XPathNodePointer( this, doc, node ); _temp = new XPathNodePointer( this, doc, node ); _doc = doc; } private DataDocumentXPathNavigator( DataDocumentXPathNavigator other ) { this._curNode = other._curNode.Clone( this ); this._temp = other._temp.Clone( this ); this._doc = other._doc; } public override XPathNavigator Clone(){ return new DataDocumentXPathNavigator( this ); } internal XPathNodePointer CurNode { get { return _curNode; } } internal XmlDataDocument Document { get { return _doc; } } //Convert will deal with nodeType as Attribute or Namespace nodes public override XPathNodeType NodeType { get { return _curNode.NodeType; } } public override string LocalName { get { return _curNode.LocalName; } } public override string NamespaceURI { get { return _curNode.NamespaceURI; } } public override string Name { get { return _curNode.Name; } } public override string Prefix { get { return _curNode.Prefix; } } public override string Value { get { XPathNodeType xnt = _curNode.NodeType; if ( xnt == XPathNodeType.Element || xnt == XPathNodeType.Root ) return _curNode.InnerText; return _curNode.Value; } } public override String BaseURI { get { return _curNode.BaseURI; } } public override String XmlLang { get { return _curNode.XmlLang; } } public override bool IsEmptyElement { get { return _curNode.IsEmptyElement; } } public override XmlNameTable NameTable { get { return _doc.NameTable; } } // Attributes public override bool HasAttributes { get { return _curNode.AttributeCount > 0; } } public override string GetAttribute( string localName, string namespaceURI ) { if ( _curNode.NodeType != XPathNodeType.Element ) return string.Empty; //other type of nodes can't have attributes _temp.MoveTo( _curNode ); if ( _temp.MoveToAttribute( localName, namespaceURI ) ) return _temp.Value; return string.Empty; } //#if SupportNamespaces public override string GetNamespace(string name) { return _curNode.GetNamespace( name ); } public override bool MoveToNamespace(string name) { if ( _curNode.NodeType != XPathNodeType.Element ) return false; return _curNode.MoveToNamespace( name ); } public override bool MoveToFirstNamespace(XPathNamespaceScope namespaceScope) { if ( _curNode.NodeType != XPathNodeType.Element ) return false; return _curNode.MoveToFirstNamespace(namespaceScope); } public override bool MoveToNextNamespace(XPathNamespaceScope namespaceScope) { if ( _curNode.NodeType != XPathNodeType.Namespace ) return false; return _curNode.MoveToNextNamespace(namespaceScope); } //#endif public override bool MoveToAttribute( string localName, string namespaceURI ) { if ( _curNode.NodeType != XPathNodeType.Element ) return false; //other type of nodes can't have attributes return _curNode.MoveToAttribute( localName, namespaceURI ); } public override bool MoveToFirstAttribute() { if ( _curNode.NodeType != XPathNodeType.Element ) return false; //other type of nodes can't have attributes return _curNode.MoveToNextAttribute(true); } public override bool MoveToNextAttribute() { if ( _curNode.NodeType != XPathNodeType.Attribute ) return false; return _curNode.MoveToNextAttribute(false); } // Tree public override bool MoveToNext() { if ( _curNode.NodeType == XPathNodeType.Attribute ) return false; return _curNode.MoveToNextSibling(); } public override bool MoveToPrevious() { if ( _curNode.NodeType == XPathNodeType.Attribute ) return false; return _curNode.MoveToPreviousSibling(); } public override bool MoveToFirst() { if ( _curNode.NodeType == XPathNodeType.Attribute ) return false; return _curNode.MoveToFirst(); } public override bool HasChildren { get { return _curNode.HasChildren; } } public override bool MoveToFirstChild() { return _curNode.MoveToFirstChild(); } public override bool MoveToParent() { return _curNode.MoveToParent(); } public override void MoveToRoot() { _curNode.MoveToRoot(); } public override bool MoveTo( XPathNavigator other ) { if ( other == null ) return false; DataDocumentXPathNavigator otherDataDocXPathNav = other as DataDocumentXPathNavigator; if ( otherDataDocXPathNav != null ) { if ( _curNode.MoveTo( otherDataDocXPathNav.CurNode ) ) { _doc = _curNode.Document; return true; } else return false; } return false; } //doesn't support MoveToId public override bool MoveToId( string id ) { return false; } public override bool IsSamePosition( XPathNavigator other ) { if ( other == null ) return false; DataDocumentXPathNavigator otherDataDocXPathNav = other as DataDocumentXPathNavigator; if ( otherDataDocXPathNav != null ) { if ( this._doc == otherDataDocXPathNav.Document && this._curNode.IsSamePosition(otherDataDocXPathNav.CurNode) ) return true; } return false; } //the function is only called for XPathNodeList enumerate nodes and // shouldn't be promoted to frequently use because it will cause foliation XmlNode IHasXmlNode.GetNode() { return _curNode.Node; } public override XmlNodeOrder ComparePosition( XPathNavigator other ) { if ( other == null ) return XmlNodeOrder.Unknown; // this is what XPathDocument does. // WebData 103403 DataDocumentXPathNavigator otherDataDocXPathNav = other as DataDocumentXPathNavigator; if ( otherDataDocXPathNav == null || otherDataDocXPathNav.Document != this._doc ) return XmlNodeOrder.Unknown; return this._curNode.ComparePosition( otherDataDocXPathNav.CurNode ); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //[....] //----------------------------------------------------------------------------- namespace System.Xml { using System; using System.Data; using System.Collections; using System.Text; using System.Xml.XPath; using System.Diagnostics; internal sealed class DataDocumentXPathNavigator: XPathNavigator, IHasXmlNode { private XPathNodePointer _curNode; //pointer to remember the current node position private XmlDataDocument _doc; //pointer to remember the root -- can only be XmlDataDocument for DataDocumentXPathNavigator private XPathNodePointer _temp; internal DataDocumentXPathNavigator( XmlDataDocument doc, XmlNode node ) { _curNode = new XPathNodePointer( this, doc, node ); _temp = new XPathNodePointer( this, doc, node ); _doc = doc; } private DataDocumentXPathNavigator( DataDocumentXPathNavigator other ) { this._curNode = other._curNode.Clone( this ); this._temp = other._temp.Clone( this ); this._doc = other._doc; } public override XPathNavigator Clone(){ return new DataDocumentXPathNavigator( this ); } internal XPathNodePointer CurNode { get { return _curNode; } } internal XmlDataDocument Document { get { return _doc; } } //Convert will deal with nodeType as Attribute or Namespace nodes public override XPathNodeType NodeType { get { return _curNode.NodeType; } } public override string LocalName { get { return _curNode.LocalName; } } public override string NamespaceURI { get { return _curNode.NamespaceURI; } } public override string Name { get { return _curNode.Name; } } public override string Prefix { get { return _curNode.Prefix; } } public override string Value { get { XPathNodeType xnt = _curNode.NodeType; if ( xnt == XPathNodeType.Element || xnt == XPathNodeType.Root ) return _curNode.InnerText; return _curNode.Value; } } public override String BaseURI { get { return _curNode.BaseURI; } } public override String XmlLang { get { return _curNode.XmlLang; } } public override bool IsEmptyElement { get { return _curNode.IsEmptyElement; } } public override XmlNameTable NameTable { get { return _doc.NameTable; } } // Attributes public override bool HasAttributes { get { return _curNode.AttributeCount > 0; } } public override string GetAttribute( string localName, string namespaceURI ) { if ( _curNode.NodeType != XPathNodeType.Element ) return string.Empty; //other type of nodes can't have attributes _temp.MoveTo( _curNode ); if ( _temp.MoveToAttribute( localName, namespaceURI ) ) return _temp.Value; return string.Empty; } //#if SupportNamespaces public override string GetNamespace(string name) { return _curNode.GetNamespace( name ); } public override bool MoveToNamespace(string name) { if ( _curNode.NodeType != XPathNodeType.Element ) return false; return _curNode.MoveToNamespace( name ); } public override bool MoveToFirstNamespace(XPathNamespaceScope namespaceScope) { if ( _curNode.NodeType != XPathNodeType.Element ) return false; return _curNode.MoveToFirstNamespace(namespaceScope); } public override bool MoveToNextNamespace(XPathNamespaceScope namespaceScope) { if ( _curNode.NodeType != XPathNodeType.Namespace ) return false; return _curNode.MoveToNextNamespace(namespaceScope); } //#endif public override bool MoveToAttribute( string localName, string namespaceURI ) { if ( _curNode.NodeType != XPathNodeType.Element ) return false; //other type of nodes can't have attributes return _curNode.MoveToAttribute( localName, namespaceURI ); } public override bool MoveToFirstAttribute() { if ( _curNode.NodeType != XPathNodeType.Element ) return false; //other type of nodes can't have attributes return _curNode.MoveToNextAttribute(true); } public override bool MoveToNextAttribute() { if ( _curNode.NodeType != XPathNodeType.Attribute ) return false; return _curNode.MoveToNextAttribute(false); } // Tree public override bool MoveToNext() { if ( _curNode.NodeType == XPathNodeType.Attribute ) return false; return _curNode.MoveToNextSibling(); } public override bool MoveToPrevious() { if ( _curNode.NodeType == XPathNodeType.Attribute ) return false; return _curNode.MoveToPreviousSibling(); } public override bool MoveToFirst() { if ( _curNode.NodeType == XPathNodeType.Attribute ) return false; return _curNode.MoveToFirst(); } public override bool HasChildren { get { return _curNode.HasChildren; } } public override bool MoveToFirstChild() { return _curNode.MoveToFirstChild(); } public override bool MoveToParent() { return _curNode.MoveToParent(); } public override void MoveToRoot() { _curNode.MoveToRoot(); } public override bool MoveTo( XPathNavigator other ) { if ( other == null ) return false; DataDocumentXPathNavigator otherDataDocXPathNav = other as DataDocumentXPathNavigator; if ( otherDataDocXPathNav != null ) { if ( _curNode.MoveTo( otherDataDocXPathNav.CurNode ) ) { _doc = _curNode.Document; return true; } else return false; } return false; } //doesn't support MoveToId public override bool MoveToId( string id ) { return false; } public override bool IsSamePosition( XPathNavigator other ) { if ( other == null ) return false; DataDocumentXPathNavigator otherDataDocXPathNav = other as DataDocumentXPathNavigator; if ( otherDataDocXPathNav != null ) { if ( this._doc == otherDataDocXPathNav.Document && this._curNode.IsSamePosition(otherDataDocXPathNav.CurNode) ) return true; } return false; } //the function is only called for XPathNodeList enumerate nodes and // shouldn't be promoted to frequently use because it will cause foliation XmlNode IHasXmlNode.GetNode() { return _curNode.Node; } public override XmlNodeOrder ComparePosition( XPathNavigator other ) { if ( other == null ) return XmlNodeOrder.Unknown; // this is what XPathDocument does. // WebData 103403 DataDocumentXPathNavigator otherDataDocXPathNav = other as DataDocumentXPathNavigator; if ( otherDataDocXPathNav == null || otherDataDocXPathNav.Document != this._doc ) return XmlNodeOrder.Unknown; return this._curNode.ComparePosition( otherDataDocXPathNav.CurNode ); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- CodeBinaryOperatorExpression.cs
- FixedSOMTableRow.cs
- TemplateComponentConnector.cs
- GridViewUpdateEventArgs.cs
- ProxyHelper.cs
- TextTrailingCharacterEllipsis.cs
- StopRoutingHandler.cs
- IdentitySection.cs
- BehaviorService.cs
- arclist.cs
- ItemContainerProviderWrapper.cs
- PersianCalendar.cs
- AutomationIdentifierGuids.cs
- AnimationLayer.cs
- TableRow.cs
- ServicePerformanceCounters.cs
- ValidatingPropertiesEventArgs.cs
- XmlValidatingReader.cs
- DisplayInformation.cs
- SingleObjectCollection.cs
- Merger.cs
- EventEntry.cs
- TreeNodeConverter.cs
- ListViewPagedDataSource.cs
- Pens.cs
- _LocalDataStore.cs
- BrowserCapabilitiesCodeGenerator.cs
- SHA1CryptoServiceProvider.cs
- ProfileGroupSettings.cs
- RoleGroup.cs
- DataGridAddNewRow.cs
- EntityDesignPluralizationHandler.cs
- GridSplitter.cs
- OdbcConnectionHandle.cs
- BitmapEffectvisualstate.cs
- KeyValuePairs.cs
- NetNamedPipeBindingCollectionElement.cs
- TransportConfigurationTypeElementCollection.cs
- WorkflowViewStateService.cs
- Material.cs
- LogEntrySerializer.cs
- HtmlInputHidden.cs
- SocketElement.cs
- WeakReadOnlyCollection.cs
- QuerySafeNavigator.cs
- NativeMethods.cs
- DateTimeFormat.cs
- DependentList.cs
- XsdCachingReader.cs
- TypeGeneratedEventArgs.cs
- X509UI.cs
- Grant.cs
- _ConnectOverlappedAsyncResult.cs
- ObjectManager.cs
- MultidimensionalArrayItemReference.cs
- Event.cs
- LinearGradientBrush.cs
- CatalogZoneBase.cs
- GAC.cs
- ToolStripItemGlyph.cs
- TableLayoutSettingsTypeConverter.cs
- DataTableExtensions.cs
- WebPartRestoreVerb.cs
- IERequestCache.cs
- SocketSettings.cs
- HttpChannelHelper.cs
- PermissionSet.cs
- MultiByteCodec.cs
- GcHandle.cs
- TypeDescriptor.cs
- SamlAuthorizationDecisionStatement.cs
- SemaphoreSecurity.cs
- ConvertersCollection.cs
- ContractTypeNameCollection.cs
- MimeWriter.cs
- SqlDataSourceEnumerator.cs
- DecryptedHeader.cs
- IndexedSelectQueryOperator.cs
- DictionarySectionHandler.cs
- WebPartRestoreVerb.cs
- ApplicationFileParser.cs
- ParameterCollection.cs
- X509CertificateCollection.cs
- ExpandSegmentCollection.cs
- _emptywebproxy.cs
- NativeMethodsOther.cs
- CheckPair.cs
- XpsInterleavingPolicy.cs
- Baml2006Reader.cs
- SerializationUtility.cs
- MailWebEventProvider.cs
- ProvidersHelper.cs
- SystemDiagnosticsSection.cs
- CheckableControlBaseAdapter.cs
- TextBoxDesigner.cs
- StringComparer.cs
- SoapObjectReader.cs
- LeftCellWrapper.cs
- EtwTrace.cs
- DbConnectionPoolOptions.cs