中文字幕免费精品_亚洲视频自拍_亚洲综合国产激情另类一区_色综合咪咪久久

送給大家一個XML與DataSet的相互轉換的類:

XmlDatasetConvert 該類提供了四種方法：

1、將xml對象內容字符串轉換為DataSet

2、將xml文件轉換為DataSet

3、將DataSet轉換為xml對象字符串

4、將DataSet轉換為xml文件

XmlDatasetConvert.cs

using System;

using System.Collections.Generic;

using System.Text;

using System.Data;

using System.IO;

using System.Xml;

namespace XmlDesign

{

class XmlDatasetConvert

{

//將xml對象內容字符串轉換為DataSet

public static DataSet ConvertXMLToDataSet(string xmlData)

{

StringReader stream = null;

XmlTextReader reader = null;

try

{

DataSet xmlDS = new DataSet();

stream = new StringReader(xmlData);

//從stream裝載到XmlTextReader

reader = new XmlTextReader(stream);

xmlDS.ReadXml(reader);

return xmlDS;

}

catch (System.Exception ex)

{

throw ex;

}

finally

{

if (reader != null) reader.Close();

}

}

//將xml文件轉換為DataSet

public static DataSet ConvertXMLFileToDataSet(string xmlFile)

{

StringReader stream = null;

XmlTextReader reader = null;

try

{

XmlDocument xmld = new XmlDocument();

xmld.Load(xmlFile);

DataSet xmlDS = new DataSet();

stream = new StringReader(xmld.InnerXml);

//從stream裝載到XmlTextReader

reader = new XmlTextReader(stream);

xmlDS.ReadXml(reader);

//xmlDS.ReadXml(xmlFile);

return xmlDS;

}

catch (System.Exception ex)

{

throw ex;

}

finally

{

if (reader != null) reader.Close();

}

}

//將DataSet轉換為xml對象字符串

public static string ConvertDataSetToXML(DataSet xmlDS)

{

MemoryStream stream = null;

XmlTextWriter writer = null;

try

{

stream = new MemoryStream();

//從stream裝載到XmlTextReader

writer = new XmlTextWriter(stream, Encoding.Unicode);

//用WriteXml方法寫入文件.

xmlDS.WriteXml(writer);

int count = (int)stream.Length;

byte[] arr = new byte[count];

stream.Seek(0, SeekOrigin.Begin);

stream.Read(arr, 0, count);

UnicodeEncoding utf = new UnicodeEncoding();

return utf.GetString(arr).Trim();

}

catch (System.Exception ex)

{

throw ex;

}

finally

{

if (writer != null) writer.Close();

}

}

//將DataSet轉換為xml文件

public static void ConvertDataSetToXMLFile(DataSet xmlDS,string xmlFile)

{

MemoryStream stream = null;

XmlTextWriter writer = null;

try

{

stream = new MemoryStream();

//從stream裝載到XmlTextReader

writer = new XmlTextWriter(stream, Encoding.Unicode);

//用WriteXml方法寫入文件.

xmlDS.WriteXml(writer);

int count = (int)stream.Length;

byte[] arr = new byte[count];

stream.Seek(0, SeekOrigin.Begin);

stream.Read(arr, 0, count);

//返回Unicode編碼的文本

UnicodeEncoding utf = new UnicodeEncoding();

StreamWriter sw = new StreamWriter(xmlFile);

sw.WriteLine("");

sw.WriteLine(utf.GetString(arr).Trim());

sw.Close();

}

catch( System.Exception ex )

{

throw ex;

}

finally

{

if (writer != null) writer.Close();

}

}

}

}

使用示例

using System;

using System.Collections.Generic;

using System.Text;

using System.Xml;

using System.Data;

namespace XmlDesign

{

class Program

{

static void Main(string[] args)

{

DataSet ds = new DataSet();

轉換一個XML文件(本地/網絡均可)為一個DataSet#region 轉換一個XML文件(本地/網絡均可)為一個DataSet

//http://news.baidu.com/n?cmd=1&class=sportnews&tn=rss

//F:/study/001CSharp_Study/002Source/XmlDesign/XmlDesign/Save_Plan.xml

ds = XmlDatasetConvert.ConvertXMLFileToDataSet(@"

Console.WriteLine("數據集名為/"{0}/",包含{1}個表", ds.DataSetName, ds.Tables.Count);

更多信息請查看IT技術專欄