ErrorInfoXmlDocument.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Configuration / System / Configuration / ErrorInfoXmlDocument.cs / 1305376 / ErrorInfoXmlDocument.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Configuration 
{ 
    using System.Configuration.Internal;
    using System.IO; 
    using System.Xml;
    using System.Security.Permissions;

    // ErrorInfoXmlDocument - the default Xml Document doesn't track line numbers, and line 
    // numbers are necessary to display source on config errors.
    // These classes wrap corresponding System.Xml types and also carry 
    // the necessary information for reporting filename / line numbers. 
    // Note: these classes will go away if webdata ever decides to incorporate line numbers
    // into the default XML classes.  This class could also go away if webdata brings back 
    // the UserData property to hang any info off of any node.
    internal sealed class ErrorInfoXmlDocument : XmlDocument, IConfigErrorInfo {
        XmlTextReader   _reader;
        int             _lineOffset; 
        string          _filename;
 
        int IConfigErrorInfo.LineNumber { 
            get {
                if (_reader == null) { 
                    return 0;
                }

                if (_lineOffset > 0) { 
                    return _reader.LineNumber + _lineOffset - 1;
                } 
 
                return _reader.LineNumber;
            } 
        }

        internal int LineNumber { get { return ((IConfigErrorInfo)this).LineNumber; } }
 
        string IConfigErrorInfo.Filename {
            get { return _filename; } 
        } 

        public override void Load(string filename) { 
            _filename = filename;
            try {
                _reader = new XmlTextReader(filename);
                _reader.XmlResolver = null; 
                base.Load(_reader);
            } 
            finally { 
                if (_reader != null) {
                    _reader.Close(); 
                    _reader = null;
                }
            }
        } 

        private void LoadFromConfigXmlReader(ConfigXmlReader reader) { 
            IConfigErrorInfo err = (IConfigErrorInfo) reader; 
            _filename = err.Filename;
            _lineOffset = err.LineNumber + 1; 

            try {
                _reader = reader;
                base.Load(_reader); 
            }
            finally { 
                if (_reader != null) { 
                    _reader.Close();
                    _reader = null; 
                }
            }
        }
 
        static internal XmlNode CreateSectionXmlNode(ConfigXmlReader reader) {
            ErrorInfoXmlDocument doc = new ErrorInfoXmlDocument(); 
            doc.LoadFromConfigXmlReader(reader); 
            XmlNode xmlNode = doc.DocumentElement;
 
            return xmlNode;
        }

 
        public override XmlAttribute CreateAttribute( string prefix, string localName, string namespaceUri ) {
            return new ConfigXmlAttribute( _filename, LineNumber, prefix, localName, namespaceUri, this ); 
        } 
        public override XmlElement CreateElement( string prefix, string localName, string namespaceUri) {
            return new ConfigXmlElement( _filename, LineNumber, prefix, localName, namespaceUri, this ); 
        }
        public override XmlText CreateTextNode(String text) {
            return new ConfigXmlText( _filename, LineNumber, text, this );
        } 
        public override XmlCDataSection CreateCDataSection(String data) {
            return new ConfigXmlCDataSection( _filename, LineNumber, data, this ); 
        } 
        public override XmlComment CreateComment(String data) {
            return new ConfigXmlComment( _filename, LineNumber, data, this ); 
        }
        public override XmlSignificantWhitespace CreateSignificantWhitespace(String data) {
            return new ConfigXmlSignificantWhitespace( _filename, LineNumber, data, this );
        } 
        public override XmlWhitespace CreateWhitespace(String data) {
            return new ConfigXmlWhitespace( _filename, LineNumber, data, this ); 
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

Link Menu

Network programming in C#, Network Programming in VB.NET, Network Programming in .NET
This book is available now!
Buy at Amazon US or
Buy at Amazon UK