ASP.NET----从XML文档转换到DataSet

using System;
using System.Xml;
using System.Data;
using System.Text;
using System.IO;
namespace NET.MST.Tenth.XmlAndDataSet
{
partial class XmlAndDataSet
{
static void Main(string[] args)
{
Console.WriteLine("从XML文档转换到DataSet：");
DataSet ds = ConvertXMLFileToDataSet("..\\..\\Test.xml");
PrintDataSet(ds);
Console.WriteLine("从DataSet转换回XML文档：");
ConvertDataSetToXML(ds).Save(Console.Out);
Console.Read();
}
/// <summary>
/// 打印DataSet
/// </summary>
/// <param name="ds">DataSet对象</param>
static void PrintDataSet(DataSet ds)
{
foreach (DataTable table in ds.Tables)
{
Console.WriteLine("表{0}:", table.TableName);
foreach (DataColumn column in table.Columns)
{
Console.Write("{0}({1})  ", column.ColumnName, column.ColumnMapping.ToString());
}
Console.Write("\r\n");
foreach (DataRow row in table.Rows)
{
foreach (DataColumn col in table.Columns)
{
Console.Write("{0}  ", row[col.ColumnName].ToString().Trim());
}
Console.Write("\r\n");
}
}
}
}
partial class XmlAndDataSet
{
/// <summary>
/// 将xml文件转换为DataSet
/// </summary>
public static DataSet ConvertXMLFileToDataSet(string xmlFile)
{
//读入XML文档
XmlDocument xml = new XmlDocument();
xml.Load(xmlFile);
DataSet result = new DataSet();
using (StringReader stream = new StringReader(xml.InnerXml))
{
using (XmlTextReader reader = new XmlTextReader(stream))
{
result.ReadXml(reader);
return result;
}
}
}
/// <summary>
/// 将DataSet转换为xml对象字符串
/// </summary>
public static XmlDocument ConvertDataSetToXML(DataSet ds)
{
using (MemoryStream stream = new MemoryStream())
{
//通过XmlTextWriter来生成XML
using (XmlTextWriter writer = new XmlTextWriter(stream, Encoding.Unicode))
{
//DataSet转换为XML文档
ds.WriteXml(writer);
//从流中读出数据
int count = (int)stream.Length;
byte[] arr = new byte[count];
stream.Seek(0, SeekOrigin.Begin);
stream.Read(arr, 0, count);
XmlDocument result = new XmlDocument();
result.LoadXml("<?xml version='1.0' encoding='GB2312'?>"+
Encoding.Unicode.GetString(arr).Trim());
return result;
}
}
}
}
}