Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / xsp / System / Web / UI / WebControls / XmlHierarchyData.cs / 1 / 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
- FileIOPermission.cs
- NavigationExpr.cs
- NullRuntimeConfig.cs
- CompositionAdorner.cs
- ComponentRenameEvent.cs
- ISAPIRuntime.cs
- XmlReader.cs
- ErrorHandler.cs
- BindingExpression.cs
- HuffmanTree.cs
- Point3DAnimation.cs
- EventLogHandle.cs
- OrderPreservingSpoolingTask.cs
- FormatSelectingMessageInspector.cs
- TextTreeUndo.cs
- BaseServiceProvider.cs
- GregorianCalendar.cs
- ExpandedProjectionNode.cs
- ParallelTimeline.cs
- QueryValue.cs
- TypeInfo.cs
- WindowsRichEdit.cs
- XmlAttributeCache.cs
- TheQuery.cs
- XmlNamespaceMappingCollection.cs
- ExceptionHandlersDesigner.cs
- GCHandleCookieTable.cs
- ThemeDirectoryCompiler.cs
- DynamicValueConverter.cs
- PeerTransportListenAddressValidator.cs
- LeaseManager.cs
- Pkcs7Signer.cs
- ContainerUIElement3D.cs
- OdbcReferenceCollection.cs
- autovalidator.cs
- ComplexTypeEmitter.cs
- EventSinkHelperWriter.cs
- StrokeCollection2.cs
- Wildcard.cs
- BaseUriHelper.cs
- DbProviderFactories.cs
- HttpWebRequestElement.cs
- WebPartConnectionsCancelEventArgs.cs
- TimeoutHelper.cs
- VirtualDirectoryMappingCollection.cs
- CommandDevice.cs
- EvidenceBase.cs
- RoleGroup.cs
- TagNameToTypeMapper.cs
- RootBrowserWindow.cs
- EditorZoneBase.cs
- DirectoryObjectSecurity.cs
- Form.cs
- Ipv6Element.cs
- TreeNodeBinding.cs
- ControllableStoryboardAction.cs
- UnsafeNativeMethods.cs
- MenuItem.cs
- Activity.cs
- UIElement3D.cs
- SafeProcessHandle.cs
- FontUnitConverter.cs
- WebHttpSecurity.cs
- StylusButton.cs
- InputBuffer.cs
- DBBindings.cs
- ExecutedRoutedEventArgs.cs
- SchemaSetCompiler.cs
- XmlBufferReader.cs
- TextSchema.cs
- x509store.cs
- EndpointIdentityConverter.cs
- WeakRefEnumerator.cs
- Identity.cs
- MethodRental.cs
- XmlSchemas.cs
- LogSwitch.cs
- PreProcessor.cs
- SplitContainer.cs
- RectAnimationClockResource.cs
- ToolTip.cs
- SvcMapFile.cs
- Bitmap.cs
- InputLanguageCollection.cs
- LowerCaseStringConverter.cs
- EventListenerClientSide.cs
- DataServiceQueryProvider.cs
- ToolboxItemImageConverter.cs
- SiteMapPathDesigner.cs
- RelatedPropertyManager.cs
- AuthenticationConfig.cs
- DocumentApplicationState.cs
- ArithmeticLiteral.cs
- ListManagerBindingsCollection.cs
- XDRSchema.cs
- WindowsImpersonationContext.cs
- RichTextBoxDesigner.cs
- MetadataAssemblyHelper.cs
- BuildResultCache.cs
- HtmlInputCheckBox.cs