XmlExpressionDumper.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 / DataEntity / System / Data / Common / CommandTrees / Internal / XmlExpressionDumper.cs / 1305376 / XmlExpressionDumper.cs
                        

                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner  [....]
// @backupOwner [....] 
//--------------------------------------------------------------------- 

using System; 
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Text; 
using System.Xml;
 
using System.Data.Metadata.Edm; 
using System.Data.Common.CommandTrees;
 
namespace System.Data.Common.CommandTrees.Internal
{
    /// 
    /// An implementation of ExpressionDumper that produces an XML string. 
    /// 
    internal class XmlExpressionDumper : ExpressionDumper 
    { 
        internal static Encoding DefaultEncoding { get { return Encoding.UTF8; } }
 
        private XmlWriter _writer;

        internal XmlExpressionDumper(Stream stream)
            : this(stream, XmlExpressionDumper.DefaultEncoding, true) {} 

        internal XmlExpressionDumper(Stream stream, Encoding encoding, bool indent) : base() 
        { 
            XmlWriterSettings settings = new XmlWriterSettings();
            settings.CheckCharacters = false; 
            settings.Indent = true;
            settings.Encoding = encoding;
            _writer = XmlWriter.Create(stream, settings);
            _writer.WriteStartDocument(true); 
        }
 
        internal void Close() 
        {
            _writer.WriteEndDocument(); 
            _writer.Flush();
            _writer.Close();
        }
 
        internal override void Begin(string name, Dictionary attrs)
        { 
            _writer.WriteStartElement(name); 
            if (attrs != null)
            { 
                foreach (KeyValuePair attr in attrs)
                {

                    _writer.WriteAttributeString(attr.Key, (null == attr.Value ? "" : attr.Value.ToString())); 
                }
            } 
        } 

        internal override void End(string name) 
        {
            _writer.WriteEndElement();
        }
    } 
}

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

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