Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / WebControls / XmlHierarchyData.cs / 1305376 / XmlHierarchyData.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System; using System.Collections; using System.ComponentModel; using System.Data; using System.Drawing.Design; using System.Globalization; using System.Text; using System.Web; using System.Web.UI; using System.Xml; using AttributeCollection = System.ComponentModel.AttributeCollection; ////// Represents the data associated with a single hierarchy item - in this case an XmlNode. /// internal sealed class XmlHierarchyData : IHierarchyData, ICustomTypeDescriptor { private XmlNode _item; private XmlHierarchicalEnumerable _parent; private string _path; ////// Create a new instance of XmlHierarchyData. /// internal XmlHierarchyData(XmlHierarchicalEnumerable parent, XmlNode item) { _parent = parent; _item = item; } ////// Creates a path to a given XmlNode from the root using XPath. /// private string CreateRecursivePath(XmlNode node) { if (node.ParentNode == null) return String.Empty; return CreateRecursivePath(node.ParentNode) + FindNodePosition(node); } ////// Finds a node's position relative to its parent. /// private string FindNodePosition(XmlNode node) { XmlNodeList nodeList = node.ParentNode.ChildNodes; int index = 0; for (int i = 0; i < nodeList.Count; i++) { // Position only considers elements, not other node types if (nodeList[i].NodeType == XmlNodeType.Element) index++; if (nodeList[i] == node) return "/*[position()=" + Convert.ToString(index, CultureInfo.InvariantCulture) + "]"; } throw new ArgumentException(SR.GetString(SR.XmlHierarchyData_CouldNotFindNode)); } public override string ToString() { return _item.Name; } bool IHierarchyData.HasChildren { get { return _item.HasChildNodes; } } object IHierarchyData.Item { get { return _item; } } string IHierarchyData.Path { get { if (_path == null) { // If we don't yet have a path, create one and cache it if (_parent != null) { // If we have a parent enumerable, then our path is the parent's // path plus our position within that parent. if (_parent.Path == null) { _parent.Path = CreateRecursivePath(_item.ParentNode); } _path = _parent.Path + FindNodePosition(_item); } else { // If we are not associated with a parent enumerable, we // have to build up our entire path from scratch. _path = CreateRecursivePath(_item); } } return _path; } } string IHierarchyData.Type { get { return _item.Name; } } IHierarchicalEnumerable IHierarchyData.GetChildren() { return new XmlHierarchicalEnumerable(_item.ChildNodes); } IHierarchyData IHierarchyData.GetParent() { XmlNode parentNode = _item.ParentNode; if (parentNode == null) return null; return new XmlHierarchyData(null, parentNode); } AttributeCollection ICustomTypeDescriptor.GetAttributes() { return AttributeCollection.Empty; } string ICustomTypeDescriptor.GetClassName() { return GetType().Name; } string ICustomTypeDescriptor.GetComponentName() { return null; } TypeConverter ICustomTypeDescriptor.GetConverter() { return null; } EventDescriptor ICustomTypeDescriptor.GetDefaultEvent() { return null; } PropertyDescriptor ICustomTypeDescriptor.GetDefaultProperty() { return new XmlHierarchyDataPropertyDescriptor("#Name"); } object ICustomTypeDescriptor.GetEditor(Type editorBaseType) { return null; } EventDescriptorCollection ICustomTypeDescriptor.GetEvents() { return null; } EventDescriptorCollection ICustomTypeDescriptor.GetEvents(Attribute[] attrs) { return null; } PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties() { return ((ICustomTypeDescriptor)this).GetProperties(null); } PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties(Attribute[] attrFilter) { System.Collections.Generic.Listlist = new System.Collections.Generic.List (); list.Add(new XmlHierarchyDataPropertyDescriptor("#Name")); list.Add(new XmlHierarchyDataPropertyDescriptor("#Value")); list.Add(new XmlHierarchyDataPropertyDescriptor("#InnerText")); XmlAttributeCollection attrs = _item.Attributes; if (attrs != null) { for (int i = 0; i < attrs.Count; i++) { list.Add(new XmlHierarchyDataPropertyDescriptor(attrs[i].Name)); } } return new PropertyDescriptorCollection(list.ToArray()); } object ICustomTypeDescriptor.GetPropertyOwner(PropertyDescriptor pd) { if (pd is XmlHierarchyDataPropertyDescriptor) { return this; } return null; } private class XmlHierarchyDataPropertyDescriptor : PropertyDescriptor { private string _name; public XmlHierarchyDataPropertyDescriptor(string name) : base(name, null) { _name = name; } public override Type ComponentType { get { return typeof(XmlHierarchyData); } } public override bool IsReadOnly { get { return true; } } public override Type PropertyType { get { return typeof(string); } } public override bool CanResetValue(object o) { return false; } public override object GetValue(object o) { XmlHierarchyData data = o as XmlHierarchyData; if (data != null) { switch (_name) { case "#Name": return data._item.Name; case "#Value": return data._item.Value; case "#InnerText": return data._item.InnerText; default: XmlAttributeCollection attrs = data._item.Attributes; if (attrs != null) { XmlAttribute attr = attrs[_name]; if (attr != null) { return attr.Value; } } break; } } return String.Empty; } public override void ResetValue(object o) { return; } public override void SetValue(object o, object value) { } public override bool ShouldSerializeValue(object o) { return true; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ // // Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System; using System.Collections; using System.ComponentModel; using System.Data; using System.Drawing.Design; using System.Globalization; using System.Text; using System.Web; using System.Web.UI; using System.Xml; using AttributeCollection = System.ComponentModel.AttributeCollection; ////// Represents the data associated with a single hierarchy item - in this case an XmlNode. /// internal sealed class XmlHierarchyData : IHierarchyData, ICustomTypeDescriptor { private XmlNode _item; private XmlHierarchicalEnumerable _parent; private string _path; ////// Create a new instance of XmlHierarchyData. /// internal XmlHierarchyData(XmlHierarchicalEnumerable parent, XmlNode item) { _parent = parent; _item = item; } ////// Creates a path to a given XmlNode from the root using XPath. /// private string CreateRecursivePath(XmlNode node) { if (node.ParentNode == null) return String.Empty; return CreateRecursivePath(node.ParentNode) + FindNodePosition(node); } ////// Finds a node's position relative to its parent. /// private string FindNodePosition(XmlNode node) { XmlNodeList nodeList = node.ParentNode.ChildNodes; int index = 0; for (int i = 0; i < nodeList.Count; i++) { // Position only considers elements, not other node types if (nodeList[i].NodeType == XmlNodeType.Element) index++; if (nodeList[i] == node) return "/*[position()=" + Convert.ToString(index, CultureInfo.InvariantCulture) + "]"; } throw new ArgumentException(SR.GetString(SR.XmlHierarchyData_CouldNotFindNode)); } public override string ToString() { return _item.Name; } bool IHierarchyData.HasChildren { get { return _item.HasChildNodes; } } object IHierarchyData.Item { get { return _item; } } string IHierarchyData.Path { get { if (_path == null) { // If we don't yet have a path, create one and cache it if (_parent != null) { // If we have a parent enumerable, then our path is the parent's // path plus our position within that parent. if (_parent.Path == null) { _parent.Path = CreateRecursivePath(_item.ParentNode); } _path = _parent.Path + FindNodePosition(_item); } else { // If we are not associated with a parent enumerable, we // have to build up our entire path from scratch. _path = CreateRecursivePath(_item); } } return _path; } } string IHierarchyData.Type { get { return _item.Name; } } IHierarchicalEnumerable IHierarchyData.GetChildren() { return new XmlHierarchicalEnumerable(_item.ChildNodes); } IHierarchyData IHierarchyData.GetParent() { XmlNode parentNode = _item.ParentNode; if (parentNode == null) return null; return new XmlHierarchyData(null, parentNode); } AttributeCollection ICustomTypeDescriptor.GetAttributes() { return AttributeCollection.Empty; } string ICustomTypeDescriptor.GetClassName() { return GetType().Name; } string ICustomTypeDescriptor.GetComponentName() { return null; } TypeConverter ICustomTypeDescriptor.GetConverter() { return null; } EventDescriptor ICustomTypeDescriptor.GetDefaultEvent() { return null; } PropertyDescriptor ICustomTypeDescriptor.GetDefaultProperty() { return new XmlHierarchyDataPropertyDescriptor("#Name"); } object ICustomTypeDescriptor.GetEditor(Type editorBaseType) { return null; } EventDescriptorCollection ICustomTypeDescriptor.GetEvents() { return null; } EventDescriptorCollection ICustomTypeDescriptor.GetEvents(Attribute[] attrs) { return null; } PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties() { return ((ICustomTypeDescriptor)this).GetProperties(null); } PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties(Attribute[] attrFilter) { System.Collections.Generic.Listlist = new System.Collections.Generic.List (); list.Add(new XmlHierarchyDataPropertyDescriptor("#Name")); list.Add(new XmlHierarchyDataPropertyDescriptor("#Value")); list.Add(new XmlHierarchyDataPropertyDescriptor("#InnerText")); XmlAttributeCollection attrs = _item.Attributes; if (attrs != null) { for (int i = 0; i < attrs.Count; i++) { list.Add(new XmlHierarchyDataPropertyDescriptor(attrs[i].Name)); } } return new PropertyDescriptorCollection(list.ToArray()); } object ICustomTypeDescriptor.GetPropertyOwner(PropertyDescriptor pd) { if (pd is XmlHierarchyDataPropertyDescriptor) { return this; } return null; } private class XmlHierarchyDataPropertyDescriptor : PropertyDescriptor { private string _name; public XmlHierarchyDataPropertyDescriptor(string name) : base(name, null) { _name = name; } public override Type ComponentType { get { return typeof(XmlHierarchyData); } } public override bool IsReadOnly { get { return true; } } public override Type PropertyType { get { return typeof(string); } } public override bool CanResetValue(object o) { return false; } public override object GetValue(object o) { XmlHierarchyData data = o as XmlHierarchyData; if (data != null) { switch (_name) { case "#Name": return data._item.Name; case "#Value": return data._item.Value; case "#InnerText": return data._item.InnerText; default: XmlAttributeCollection attrs = data._item.Attributes; if (attrs != null) { XmlAttribute attr = attrs[_name]; if (attr != null) { return attr.Value; } } break; } } return String.Empty; } public override void ResetValue(object o) { return; } public override void SetValue(object o, object value) { } public override bool ShouldSerializeValue(object o) { return true; } } } } // 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
- ViewCellRelation.cs
- ToolStripOverflow.cs
- nulltextnavigator.cs
- SectionUpdates.cs
- BulletedList.cs
- XmlLangPropertyAttribute.cs
- XmlRootAttribute.cs
- DiscoveryOperationContext.cs
- XPathDocumentNavigator.cs
- DocumentOrderComparer.cs
- WebPartEventArgs.cs
- SiteMapDataSourceView.cs
- SchemaElement.cs
- RoutedEventHandlerInfo.cs
- MobileControlsSection.cs
- HttpListenerRequestTraceRecord.cs
- QueueTransferProtocol.cs
- ResourceManager.cs
- ReceiveActivity.cs
- RuntimeCompatibilityAttribute.cs
- SafeCryptoKeyHandle.cs
- oledbmetadatacolumnnames.cs
- CodeVariableReferenceExpression.cs
- SqlTransaction.cs
- EnvelopedPkcs7.cs
- DbConnectionPool.cs
- XsltLibrary.cs
- ListViewPagedDataSource.cs
- HebrewCalendar.cs
- QilGenerator.cs
- ObservableDictionary.cs
- WindowsListViewGroup.cs
- RemoteWebConfigurationHostServer.cs
- ContravarianceAdapter.cs
- filewebresponse.cs
- SectionRecord.cs
- TraceUtils.cs
- TemplateContainer.cs
- Model3D.cs
- Convert.cs
- ReferencedType.cs
- StickyNoteContentControl.cs
- ObjectManager.cs
- RegionData.cs
- ReceiveMessageRecord.cs
- PlatformNotSupportedException.cs
- FilteredDataSetHelper.cs
- SynthesizerStateChangedEventArgs.cs
- DocumentViewer.cs
- PreProcessor.cs
- ProcessInfo.cs
- WCFModelStrings.Designer.cs
- XmlRawWriter.cs
- ReverseQueryOperator.cs
- AgileSafeNativeMemoryHandle.cs
- JsonReaderDelegator.cs
- DataGridViewCellPaintingEventArgs.cs
- WCFBuildProvider.cs
- ExeConfigurationFileMap.cs
- ModelItemExtensions.cs
- EntityClassGenerator.cs
- MultiView.cs
- GeneralTransform2DTo3DTo2D.cs
- HttpGetClientProtocol.cs
- Grammar.cs
- FixedSOMTableRow.cs
- HostingPreferredMapPath.cs
- Group.cs
- ModuleBuilderData.cs
- ConfigurationHandlersInstallComponent.cs
- MiniConstructorInfo.cs
- Section.cs
- ClientSideQueueItem.cs
- DataGridDefaultColumnWidthTypeConverter.cs
- TextBoxAutomationPeer.cs
- ExtendedPropertyCollection.cs
- SystemIcmpV4Statistics.cs
- GridViewColumnHeaderAutomationPeer.cs
- TriggerCollection.cs
- ViewPort3D.cs
- PhysicalAddress.cs
- ObjectResult.cs
- WsrmFault.cs
- XamlFigureLengthSerializer.cs
- GroupBox.cs
- _NestedSingleAsyncResult.cs
- TaskExceptionHolder.cs
- Type.cs
- WebBrowserBase.cs
- ACE.cs
- Color.cs
- ViewGenerator.cs
- UInt64Converter.cs
- BufferModesCollection.cs
- HtmlShimManager.cs
- CodeArrayCreateExpression.cs
- HttpCacheParams.cs
- CodeExpressionCollection.cs
- ConstraintCollection.cs
- ServiceHostingEnvironmentSection.cs