Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Xml / System / Xml / Dom / XmlEntity.cs / 1 / XmlEntity.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- namespace System.Xml { using System.Diagnostics; // Represents a parsed or unparsed entity in the XML document. public class XmlEntity : XmlNode { string publicId; string systemId; String notationName; String name; String unparsedReplacementStr; String baseURI; XmlLinkedNode lastChild; private bool childrenFoliating; internal XmlEntity( String name, String strdata, string publicId, string systemId, String notationName, XmlDocument doc ) : base( doc ) { this.name = doc.NameTable.Add(name); this.publicId = publicId; this.systemId = systemId; this.notationName = notationName; this.unparsedReplacementStr = strdata; this.childrenFoliating = false; } // Throws an excption since an entity can not be cloned. public override XmlNode CloneNode(bool deep) { throw new InvalidOperationException(Res.GetString(Res.Xdom_Node_Cloning)); } // // Microsoft extensions // // Gets a value indicating whether the node is read-only. public override bool IsReadOnly { get { return true; // Make entities readonly } } // Gets the name of the node. public override string Name { get { return name;} } // Gets the name of the node without the namespace prefix. public override string LocalName { get { return name;} } // Gets the concatenated values of the entity node and all its children. // The property is read-only and when tried to be set, exception will be thrown. public override string InnerText { get { return base.InnerText; } set { throw new InvalidOperationException(Res.GetString(Res.Xdom_Ent_Innertext)); } } internal override bool IsContainer { get { return true;} } internal override XmlLinkedNode LastNode { get { if (lastChild == null && !childrenFoliating) { //expand the unparsedreplacementstring childrenFoliating = true; //wrap the replacement string with an element XmlLoader loader = new XmlLoader(); loader.ExpandEntity(this); } return lastChild; } set { lastChild = value;} } internal override bool IsValidChildType( XmlNodeType type ) { return(type == XmlNodeType.Text || type == XmlNodeType.Element || type == XmlNodeType.ProcessingInstruction || type == XmlNodeType.Comment || type == XmlNodeType.CDATA || type == XmlNodeType.Whitespace || type == XmlNodeType.SignificantWhitespace || type == XmlNodeType.EntityReference); } // Gets the type of the node. public override XmlNodeType NodeType { get { return XmlNodeType.Entity;} } // Gets the value of the public identifier on the entity declaration. public String PublicId { get { return publicId;} } // Gets the value of the system identifier on the entity declaration. public String SystemId { get { return systemId;} } // Gets the name of the optional NDATA attribute on the // entity declaration. public String NotationName { get { return notationName;} } //Without override these two functions, we can't guarantee that WriteTo()/WriteContent() functions will never be called public override String OuterXml { get { return String.Empty; } } public override String InnerXml { get { return String.Empty; } set { throw new InvalidOperationException( Res.GetString(Res.Xdom_Set_InnerXml ) ); } } // Saves the node to the specified XmlWriter. public override void WriteTo(XmlWriter w) { } // Saves all the children of the node to the specified XmlWriter. public override void WriteContentTo(XmlWriter w) { } public override String BaseURI { get { return baseURI; } } internal void SetBaseURI( String inBaseURI ) { baseURI = inBaseURI; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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