XML、DataTable、DataSet、byte[]相互转换代码,CSharp代码库,德仔网

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【CSharp】 XML、DataTable、DataSet、byte[]相互转换
作者:kunkun0921 / 发布于2015/1/26/ 833

	using System;
	using System.Collections.Generic;
	using System.Linq;
	using System.Text;
	using System.Data;
	using System.IO;
	using System.Xml;

	namespace ConsoleApp
	{
	 /// <summary>
	 /// XML、DataTable、DataSet、byte[]相互转换
	 /// </summary>
	 public class PackMutualXmlData
	 {

	 /// <summary>
	 /// 将Xml字符串转换成DataTable对象 第一个Table
	 /// </summary>
	 /// <param name="xmlStr">Xml字符串</param>
	 /// <returns>DataTable对象</returns>
	 public static DataTable ConvertXMLStringToDataTable(string xmlStr)
	 {
	 return ConvertXMLStringToDataSet(xmlStr).Tables[0];
	 }

	 /// <summary>
	 /// 将XML字符串转换成DATASET
	 /// </summary>
	 /// <param name="xmlStr"></param>
	 /// <returns></returns>
	 public static DataSet ConvertXMLStringToDataSet(string xmlStr)
	 {
	 if (xmlStr.Length > 0)
	 {
	 StringReader StrStream = null;
	 XmlTextReader Xmlrdr = null;
	 try
	 {
	 DataSet ds = new DataSet();
	 //读取字符串中的信息
	 StrStream = new StringReader(xmlStr);
	 //获取StrStream中的数据
	 Xmlrdr = new XmlTextReader(StrStream);
	 //ds获取Xmlrdr中的数据
	 //ds.ReadXmlSchema(Xmlrdr);
	 ds.ReadXml(Xmlrdr);
	 return ds;
	 }
	 catch (Exception e)
	 {
	 throw e;
	 }
	 finally
	 {
	 //释放资源
	 if (Xmlrdr != null)
	 {
	 Xmlrdr.Close();
	 StrStream.Close();
	 }
	 }
	 }
	 else
	 {
	 return null;
	 }
	 }

	
	 /// <summary>
	 /// 将DataSet对象中指定的Table转换成XML字符串 当为-1时为第一个
	 /// </summary>
	 /// <param name="ds">DataSet对象</param>
	 /// <returns>XML字符串</returns>
	 public static string ConvertDataSetIndexToXMLString(DataSet ds)
	 {
	 return ds.GetXml();
	 }

	 /// <summary>
	 /// 将DATATABLE转换成XML字符串
	 /// </summary>
	 /// <param name="dt"></param>
	 /// <returns></returns>
	 public static string ConvertDataTableToXMLString(DataTable dt)
	 {
	 if (dt != null)
	 {
	 MemoryStream ms = null;
	 XmlTextWriter XmlWt = null;
	 try
	 {
	 ms = new MemoryStream();
	 //根据ms实例化XmlWt
	 XmlWt = new XmlTextWriter(ms, Encoding.Unicode);
	 //获取ds中的数据
	 dt.WriteXml(XmlWt);
	 int count = (int)ms.Length;
	 byte[] temp = new byte[count];
	 ms.Seek(0, SeekOrigin.Begin);
	 ms.Read(temp, 0, count);
	 //返回Unicode编码的文本
	 UnicodeEncoding ucode = new UnicodeEncoding();
	 string returnValue = ucode.GetString(temp).Trim();
	 return returnValue;
	 }
	 catch (System.Exception ex)
	 {
	 throw ex;
	 }
	 finally
	 {
	 //释放资源
	 if (XmlWt != null)
	 {
	 XmlWt.Close();
	 ms.Close();
	 ms.Dispose();
	 }
	 }
	 }
	 else
	 {
	 return "";
	 }
	 }

	
	 /// <summary>
	 /// 将字符串转换为二进制数组
	 /// </summary>
	 /// <param name="xmlString">字符串</param>
	 /// <param name="ed">编码格式</param>
	 /// <returns></returns>
	 public static byte[] ConvertStringToByteArray(string xmlString, Encoding ed)
	 {
	 return ed.GetBytes(xmlString);
	 }

	 /// <summary>
	 /// 将二进制数组转换为字符串
	 /// </summary>
	 /// <param name="bytes">二进制数组</param>
	 /// <param name="ed">编码格式</param>
	 /// <returns></returns>
	 public static string ConvertByteArrayToString(byte[] bytes, Encoding ed)
	 {
	 return ed.GetString(bytes);
	 }

	 }

	}
试试其它关键字
　XML　　DataTable　　DataSet　　byte[]　
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