public class DataToXml
{
/**//// <summary>
/// 將DataTable對象轉換成XML字符串
/// </summary>
/// <param name="dt">DataTable對象</param>
/// <returns>XML字符串</returns>
public static string CDataToXml(DataTable dt)
{
if (dt != null)
{
MemoryStream ms = null;
XmlTextWriter XmlWt = null;
try
{
ms = new MemoryStream();
//根據ms實例化XmlWt
XmlWt = new XmlTextWriter(ms, Encoding.Unicode);
//獲取ds中的數據
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編碼的文本
UnicodeEncoding ucode = new UnicodeEncoding();
string returnValue = ucode.GetString(temp).Trim();
return returnValue;
}
catch (System.Exception ex)
{
throw ex;
}
finally
{
//釋放資源
if (XmlWt != null)
{
XmlWt.Close();
ms.Close();
ms.Dispose();
}
}
}
else
{
return "";
}
}
/**//// <summary>
/// 將DataSet對象中指定的Table轉換成XML字符串
/// </summary>
/// <param name="ds">DataSet對象</param>
/// <param name="tableIndex">DataSet對象中的Table索引</param>
/// <returns>XML字符串</returns>
public static string CDataToXml(DataSet ds, int tableIndex)
{
if (tableIndex != -1)
{
return CDataToXml(ds.Tables[tableIndex]);
}
else
{
return CDataToXml(ds.Tables[0]);
}
}
/**//// <summary>
/// 將DataSet對象轉換成XML字符串
/// </summary>
/// <param name="ds">DataSet對象</param>
/// <returns>XML字符串</returns>
public static string CDataToXml(DataSet ds)
{
return CDataToXml(ds, -1);
}
/**//// <summary>
/// 將DataView對象轉換成XML字符串
/// </summary>
/// <param name="dv">DataView對象</param>
/// <returns>XML字符串</returns>
public static string CDataToXml(DataView dv)
{
return CDataToXml(dv.Table);
}
/**//// <summary>
/// 將DataSet對象數據保存爲XML文件
/// </summary>
/// <param name="dt">DataSet</param>
/// <param name="xmlFilePath">XML文件路徑</param>
/// <returns>bool值</returns>
public static bool CDataToXmlFile(DataTable dt, string xmlFilePath)
{
if ((dt != null) && (!string.IsNullOrEmpty(xmlFilePath)))
{
string path = HttpContext.Current.Server.MapPath(xmlFilePath);
MemoryStream ms = null;
XmlTextWriter XmlWt = null;
try
{
ms = new MemoryStream();
//根據ms實例化XmlWt
XmlWt = new XmlTextWriter(ms, Encoding.Unicode);
//獲取ds中的數據
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編碼的文本
UnicodeEncoding ucode = new UnicodeEncoding();
//寫文件
StreamWriter sw = new StreamWriter(path);
sw.WriteLine("<?xml version="1.0" encoding="utf-8"?>");
sw.WriteLine(ucode.GetString(temp).Trim());
sw.Close();
return true;
}
catch (System.Exception ex)
{
throw ex;
}
finally
{
//釋放資源
if (XmlWt != null)
{
XmlWt.Close();
ms.Close();
ms.Dispose();
}
}
}
else
{
return false;
}
}
/**//// <summary>
/// 將DataSet對象中指定的Table轉換成XML文件
/// </summary>
/// <param name="ds">DataSet對象</param>
/// <param name="tableIndex">DataSet對象中的Table索引</param>
/// <param name="xmlFilePath">xml文件路徑</param>
/// <returns>bool]值</returns>
public static bool CDataToXmlFile(DataSet ds, int tableIndex, string xmlFilePath)
{
if (tableIndex != -1)
{
return CDataToXmlFile(ds.Tables[tableIndex], xmlFilePath);
}
else
{
return CDataToXmlFile(ds.Tables[0], xmlFilePath);
}
}
/**//// <summary>
/// 將DataSet對象轉換成XML文件
/// </summary>
/// <param name="ds">DataSet對象</param>
/// <param name="xmlFilePath">xml文件路徑</param>
/// <returns>bool]值</returns>
public static bool CDataToXmlFile(DataSet ds, string xmlFilePath)
{
return CDataToXmlFile(ds, -1, xmlFilePath);
}
/**//// <summary>
/// 將DataView對象轉換成XML文件
/// </summary>
/// <param name="dv">DataView對象</param>
/// <param name="xmlFilePath">xml文件路徑</param>
/// <returns>bool]值</returns>
public static bool CDataToXmlFile(DataView dv, string xmlFilePath)
{
return CDataToXmlFile(dv.Table, xmlFilePath);
}
}
/**//// <summary>
/// XML形式的字符串、XML文江轉換成DataSet、DataTable格式
/// </summary>
public class XmlToData
{
/**//// <summary>
/// 將Xml內容字符串轉換成DataSet對象
/// </summary>
/// <param name="xmlStr">Xml內容字符串</param>
/// <returns>DataSet對象</returns>
public static DataSet CXmlToDataSet(string xmlStr)
{
if (!string.IsNullOrEmpty(xmlStr))
{
StringReader StrStream = null;
XmlTextReader Xmlrdr = null;
try
{
DataSet ds = new DataSet();
//讀取字符串中的信息
StrStream = new StringReader(xmlStr);
//獲取StrStream中的數據
Xmlrdr = new XmlTextReader(StrStream);
//ds獲取Xmlrdr中的數據
ds.ReadXml(Xmlrdr);
return ds;
}
catch (Exception e)
{
throw e;
}
finally
{
//釋放資源
if (Xmlrdr != null)
{
Xmlrdr.Close();
StrStream.Close();
StrStream.Dispose();
}
}
}
else
{
return null;
}
}
/**//// <summary>
/// 將Xml字符串轉換成DataTable對象
/// </summary>
/// <param name="xmlStr">Xml字符串</param>
/// <param name="tableIndex">Table表索引</param>
/// <returns>DataTable對象</returns>
public static DataTable CXmlToDatatTable(string xmlStr, int tableIndex)
{
return CXmlToDataSet(xmlStr).Tables[tableIndex];
}
/**//// <summary>
/// 將Xml字符串轉換成DataTable對象
/// </summary>
/// <param name="xmlStr">Xml字符串</param>
/// <returns>DataTable對象</returns>
public static DataTable CXmlToDatatTable(string xmlStr)
{
return CXmlToDataSet(xmlStr).Tables[0];
}
/**//// <summary>
/// 讀取Xml文件信息,並轉換成DataSet對象
/// </summary>
/// <remarks>
/// DataSet ds = new DataSet();
/// ds = CXmlFileToDataSet("/XML/upload.xml");
/// </remarks>
/// <param name="xmlFilePath">Xml文件地址</param>
/// <returns>DataSet對象</returns>
public static DataSet CXmlFileToDataSet(string xmlFilePath)
{
if (!string.IsNullOrEmpty(xmlFilePath))
{
string path = HttpContext.Current.Server.MapPath(xmlFilePath);
StringReader StrStream = null;
XmlTextReader Xmlrdr = null;
try
{
XmlDocument xmldoc = new XmlDocument();
//根據地址加載Xml文件
xmldoc.Load(path);
DataSet ds = new DataSet();
//讀取文件中的字符流
StrStream = new StringReader(xmldoc.InnerXml);
//獲取StrStream中的數據
Xmlrdr = new XmlTextReader(StrStream);
//ds獲取Xmlrdr中的數據
ds.ReadXml(Xmlrdr);
return ds;
}
catch (Exception e)
{
throw e;
}
finally
{
//釋放資源
if (Xmlrdr != null)
{
Xmlrdr.Close();
StrStream.Close();
StrStream.Dispose();
}
}
}
else
{
return null;
}
}
/**//// <summary>
/// 讀取Xml文件信息,並轉換成DataTable對象
/// </summary>
/// <param name="xmlFilePath">xml文江路徑</param>
/// <param name="tableIndex">Table索引</param>
/// <returns>DataTable對象</returns>
public static DataTable CXmlToDataTable(string xmlFilePath, int tableIndex)
{
return CXmlFileToDataSet(xmlFilePath).Tables[tableIndex];
}
/**//// <summary>
/// 讀取Xml文件信息,並轉換成DataTable對象
/// </summary>
/// <param name="xmlFilePath">xml文江路徑</param>
/// <returns>DataTable對象</returns>
public static DataTable CXmlToDataTable(string xmlFilePath)
{
return CXmlFileToDataSet(xmlFilePath).Tables[0];
}
}