XmlEntity.cs source code in C# .NET

                        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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XmlEntity.cs source code in C# .NET

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