Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Xml / System / Xml / Dom / XmlText.cs / 1305376 / XmlText.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- namespace System.Xml { using System; using System.Text; using System.Diagnostics; using System.Xml.XPath; // Represents the text content of an element or attribute. public class XmlText : XmlCharacterData { internal XmlText( string strData ): this( strData, null ) { } protected internal XmlText( string strData, XmlDocument doc ): base( strData, doc ) { } // Gets the name of the node. public override String Name { get { return OwnerDocument.strTextName; } } // Gets the name of the current node without the namespace prefix. public override String LocalName { get { return OwnerDocument.strTextName; } } // Gets the type of the current node. public override XmlNodeType NodeType { get { return XmlNodeType.Text; } } public override XmlNode ParentNode { get { switch (parentNode.NodeType) { case XmlNodeType.Document: return null; case XmlNodeType.Text: case XmlNodeType.CDATA: case XmlNodeType.Whitespace: case XmlNodeType.SignificantWhitespace: XmlNode parent = parentNode.parentNode; while (parent.IsText) { parent = parent.parentNode; } return parent; default: return parentNode; } } } // Creates a duplicate of this node. public override XmlNode CloneNode(bool deep) { Debug.Assert( OwnerDocument != null ); return OwnerDocument.CreateTextNode( Data ); } public override String Value { get { return Data; } set { Data = value; XmlNode parent = parentNode; if ( parent != null && parent.NodeType == XmlNodeType.Attribute ) { XmlUnspecifiedAttribute attr = parent as XmlUnspecifiedAttribute; if ( attr != null && !attr.Specified ) { attr.SetSpecified( true ); } } } } // Splits the node into two nodes at the specified offset, keeping // both in the tree as siblings. public virtual XmlText SplitText(int offset) { XmlNode parentNode = this.ParentNode; int length = this.Length; if( offset > length ) throw new ArgumentOutOfRangeException( "offset" ); //if the text node is out of the living tree, throw exception. if ( parentNode == null ) throw new InvalidOperationException(Res.GetString(Res.Xdom_TextNode_SplitText)); int count = length - offset; String splitData = Substring(offset, count); DeleteData(offset, count); XmlText newTextNode = OwnerDocument.CreateTextNode(splitData); parentNode.InsertAfter(newTextNode, this); return newTextNode; } // Saves the node to the specified XmlWriter. public override void WriteTo(XmlWriter w) { w.WriteString(Data); } // Saves all the children of the node to the specified XmlWriter. public override void WriteContentTo(XmlWriter w) { // Intentionally do nothing } internal override XPathNodeType XPNodeType { get { return XPathNodeType.Text; } } internal override bool IsText { get { return true; } } internal override XmlNode PreviousText { get { if (parentNode.IsText) { return parentNode; } return null; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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