asp.net(c#) 保存xml数据(将数据写入到xml文件中)

<?xml version="1.0" encoding="utf-8"?>
<bcaster>
<item item_url="images/nei1_03.gif" link="http://www.baidu.com" />
<item item_url="images/nei1_03.gif" link="http://www.baidu.com" />
</bcaster>
要像这种格式的

item_url和link的值都是从数据库读的

各位高手帮下忙！

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XMLDOCUMENT 就可以解决了

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用XmlDocument.Save(这里是Stream或者XmlWriter)，就可以保存了。

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可以先通过datatable
C# code:

private string strconn="Provider=SQLOLEDB.1;User ID=sa;password=;Initial Catalog=通信录;Data Source=lhz";
public OleDbConnection cn = new OleDbConnection();
public OleDbCommand cm = new OleDbCommand() ;
private OleDbDataAdapter da = new OleDbDataAdapter();
Xml XMLFile1=new Xml();
cn.ConnectionString=strconn;
cm.Connection=cn;
cm.CommandText="select CustID,CustName,QQ,Email from tongxin";
da.SelectCommand=cm;
DataSet ds=new DataSet();
da.Fill(ds,"tongxin");
try
{
ds.WriteXml(Request.MapPath(XMLFile1.xml));
}
catch(Exception)
{
}
finally
{
DataGrid1.DataSource=ds;
DataGrid1.DataBind();
}


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