Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Xml / System / Xml / Dom / XmlCharacterData.cs / 1305376 / XmlCharacterData.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- namespace System.Xml { using System.Diagnostics; using System.Text; using System.Xml.XPath; // Provides text-manipulation methods that are used by several classes. public abstract class XmlCharacterData : XmlLinkedNode { string data; //base(doc) will throw exception if doc is null. protected internal XmlCharacterData( string data, XmlDocument doc ): base( doc ) { this.data = data; } // Gets or sets the value of the node. public override String Value { get { return Data;} set { Data = value;} } // Gets or sets the concatenated values of the node and // all its children. public override string InnerText { get { return Value;} set { Value = value;} } // Contains this node's data. public virtual string Data { [System.Runtime.TargetedPatchingOptOutAttribute("Performance critical to inline across NGen image boundaries")] get { if (data != null) { return data; } else { return String.Empty; } } set { XmlNode parent = ParentNode; XmlNodeChangedEventArgs args = GetEventArgs( this, parent, parent, this.data, value, XmlNodeChangedAction.Change ); if (args != null) BeforeEvent( args ); data = value; if (args != null) AfterEvent( args ); } } // Gets the length of the data, in characters. public virtual int Length { get { if (data != null) { return data.Length; } return 0; } } // Retrieves a substring of the full string from the specified range. public virtual String Substring(int offset, int count) { int len = data != null ? data.Length : 0; if (len > 0) { if (len < (offset + count)) { count = len - offset; } return data.Substring( offset, count ); } return String.Empty; } // Appends the specified string to the end of the character // data of the node. public virtual void AppendData(String strData) { XmlNode parent = ParentNode; int capacity = data != null ? data.Length : 0; if (strData != null) capacity += strData.Length; string newValue = new StringBuilder( capacity ).Append( data ).Append( strData ).ToString(); XmlNodeChangedEventArgs args = GetEventArgs( this, parent, parent, data, newValue, XmlNodeChangedAction.Change ); if (args != null) BeforeEvent( args ); this.data = newValue; if (args != null) AfterEvent( args ); } // Insert the specified string at the specified character offset. public virtual void InsertData(int offset, string strData) { XmlNode parent = ParentNode; int capacity = data != null ? data.Length : 0; if (strData != null) capacity += strData.Length; string newValue = new StringBuilder( capacity ).Append( data ).Insert(offset, strData).ToString(); XmlNodeChangedEventArgs args = GetEventArgs( this, parent, parent, data, newValue, XmlNodeChangedAction.Change ); if (args != null) BeforeEvent( args ); this.data = newValue; if (args != null) AfterEvent( args ); } // Remove a range of characters from the node. public virtual void DeleteData(int offset, int count) { //Debug.Assert(offset >= 0 && offset <= Length); int len = data != null ? data.Length : 0; if (len > 0) { if (len < (offset + count)) { count = Math.Max ( len - offset, 0); } } string newValue = new StringBuilder( data ).Remove(offset, count).ToString(); XmlNode parent = ParentNode; XmlNodeChangedEventArgs args = GetEventArgs( this, parent, parent, data, newValue, XmlNodeChangedAction.Change ); if (args != null) BeforeEvent( args ); this.data = newValue; if (args != null) AfterEvent( args ); } // Replace the specified number of characters starting at the specified offset with the // specified string. public virtual void ReplaceData(int offset, int count, String strData) { //Debug.Assert(offset >= 0 && offset <= Length); int len = data != null ? data.Length : 0; if (len > 0) { if (len < (offset + count)) { count = Math.Max ( len - offset, 0); } } StringBuilder temp = new StringBuilder( data ).Remove( offset, count ); string newValue = temp.Insert( offset, strData ).ToString(); XmlNode parent = ParentNode; XmlNodeChangedEventArgs args = GetEventArgs( this, parent, parent, data, newValue, XmlNodeChangedAction.Change ); if (args != null) BeforeEvent( args ); this.data = newValue; if (args != null) AfterEvent( args ); } internal bool CheckOnData( string data ) { return XmlCharType.Instance.IsOnlyWhitespace( data ); } internal bool DecideXPNodeTypeForTextNodes(XmlNode node, ref XPathNodeType xnt) { //returns true - if all siblings of the node are processed else returns false. //The reference XPathNodeType argument being passed in is the watermark that //changes according to the siblings nodetype and will contain the correct //nodetype when it returns. Debug.Assert(XmlDocument.IsTextNode(node.NodeType) || (node.ParentNode != null && node.ParentNode.NodeType == XmlNodeType.EntityReference)); while (node != null) { switch (node.NodeType) { case XmlNodeType.Whitespace : break; case XmlNodeType.SignificantWhitespace : xnt = XPathNodeType.SignificantWhitespace; break; case XmlNodeType.Text : case XmlNodeType.CDATA: xnt = XPathNodeType.Text; return false; case XmlNodeType.EntityReference : if (!DecideXPNodeTypeForTextNodes(node.FirstChild, ref xnt)) { return false; } break; default : return false; } node = node.NextSibling; } 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
- JsonQueryStringConverter.cs
- EventLogEntryCollection.cs
- MethodRental.cs
- BackgroundFormatInfo.cs
- XmlSerializerNamespaces.cs
- CssTextWriter.cs
- DataGridViewLinkColumn.cs
- ToolStripArrowRenderEventArgs.cs
- Int64Animation.cs
- FontCollection.cs
- DataMisalignedException.cs
- SafeRegistryHandle.cs
- XamlStyleSerializer.cs
- TextPointer.cs
- BackEase.cs
- SimplePropertyEntry.cs
- Automation.cs
- MenuItemStyleCollection.cs
- DataGridDetailsPresenterAutomationPeer.cs
- ColumnCollectionEditor.cs
- Verify.cs
- NodeInfo.cs
- DataGridViewUtilities.cs
- CompareValidator.cs
- AccessDataSource.cs
- Shape.cs
- StylusDownEventArgs.cs
- AppDomain.cs
- GACIdentityPermission.cs
- CallbackHandler.cs
- SafePointer.cs
- ToolboxService.cs
- GeneralTransform2DTo3DTo2D.cs
- ObjectDataSourceView.cs
- TableHeaderCell.cs
- SplitContainerDesigner.cs
- PerspectiveCamera.cs
- FormViewInsertEventArgs.cs
- RIPEMD160.cs
- DataSourceControlBuilder.cs
- TraceEventCache.cs
- PtsContext.cs
- Annotation.cs
- cryptoapiTransform.cs
- AsymmetricSignatureDeformatter.cs
- ExceptionUtil.cs
- SystemIPAddressInformation.cs
- WSDualHttpBindingCollectionElement.cs
- BinaryMethodMessage.cs
- CompositionAdorner.cs
- ZipIOCentralDirectoryDigitalSignature.cs
- StringBlob.cs
- TextRangeEdit.cs
- RegexGroup.cs
- PeerTransportCredentialType.cs
- WindowsPen.cs
- LinkButton.cs
- Point.cs
- PageContentAsyncResult.cs
- EqualityComparer.cs
- SocketElement.cs
- BindingContext.cs
- GeneralTransform.cs
- httpserverutility.cs
- nulltextnavigator.cs
- EncryptedPackage.cs
- ColorConvertedBitmap.cs
- CodeTypeDeclarationCollection.cs
- WindowsFormsSectionHandler.cs
- UserPersonalizationStateInfo.cs
- LoginCancelEventArgs.cs
- IMembershipProvider.cs
- CurrencyWrapper.cs
- ObjectKeyFrameCollection.cs
- ConnectivityStatus.cs
- BaseTemplateCodeDomTreeGenerator.cs
- PerformanceCounterPermissionAttribute.cs
- TypeGenericEnumerableViewSchema.cs
- UrlPath.cs
- ControlParameter.cs
- AggregateNode.cs
- StructuralObject.cs
- PropertyEmitter.cs
- Properties.cs
- SqlDependency.cs
- NamespaceEmitter.cs
- DragDeltaEventArgs.cs
- BadImageFormatException.cs
- DataGridTextBox.cs
- _NetworkingPerfCounters.cs
- TextEditorParagraphs.cs
- ComPlusTypeLoader.cs
- NonSerializedAttribute.cs
- SafeCryptoKeyHandle.cs
- TreeNode.cs
- XPathNodeHelper.cs
- WebPartZone.cs
- ItemList.cs
- remotingproxy.cs
- CorruptingExceptionCommon.cs