把datatable里的数据转换成xml格式的字符串
string GetXmlByDataTable()
{
string xmlstr;
string sql = "select top 10 * from BasicInfo";
DataTable dt = idb.ReturnDataTable(sql);
dt.TableName = "tbname";
if (dt.Rows.Count>0)
{
System.IO.StringWriter writer = new System.IO.StringWriter();
dt.WriteXml(writer);
xmlstr = writer.ToString();
}
return xmlstr;
}
相关文档：
using System;
using System.Xml;
namespace ReadXMLfromFile
{
/// <summary>
/// Summary description for Class1.
/// </summary>
class Class1
{
static void Main(string[] args)
{
XmlTextReader reader = new XmlTextReader ("books.xml");
......
使用VS2005工具XSD.exe(SDK\v2.0\Bin\xsd.exe)自动生成实体类：
xsd /c /namespace:myCompany /language:CS temp1.xsd
也可以生成DataSet类型的类:
xsd /dataset /language:CS temp1.xsd
( 类文件和XSD之间可以相互转换，也就是说，你也可以先生成类，然后自动生成XSD)
自动读取XML数据 ......
/*
数据库查询XML结构，FOR XML PATH 语句的应用
*/
FOR XML PATH 语句的应用:
CREATE TABLE TempTable(UserID int , UserName nvarchar(50));
insert into TempTable (UserID,UserName) values (1,'a')
insert into TempTable (UserID,UserName) values (2,'b')
select UserID,UserName from TempTable FOR ......
Integration with the XML Data Type
With the introduction of the XML data type, we wanted to also give FOR XML the ability to generate an instance of XML directly (more precisely, it generates a single row, single column rowset where the cell contains the XML data type instance).
Because of the bac ......
