asp.net数据库生成xml文件

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml;
using System.Data.OleDb;

/// <summary>
///data2xml 的摘要说明
/// </summary>
public class data2xml
{
public data2xml()
{
//
//TODO: 在此处添加构造函数逻辑
//

}

/// <summary>
/// 提取top10的题目生成question.xml
/// </summary>
public void qlist()
{
XmlDocument xmlDoc = new XmlDocument();
XmlDeclaration declareation;
declareation = xmlDoc.CreateXmlDeclaration("1.0", "UTF-8", null);
xmlDoc.AppendChild(declareation);

XmlElement xeRoot = xmlDoc.CreateElement("content");
xmlDoc.AppendChild(xeRoot);

XmlNode root = xmlDoc.SelectSingleNode("content");

AccessDbClass newDB = new AccessDbClass();
OleDbDataAdapter da = newDB.SelectToOleDbDataAdapter("select top 10 * from [question] where [qState]=1 order by rnd([qID])");
DataSet ds = new DataSet();
da.Fill(ds);
newDB.Close();

for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
XmlElement xeQuestion = xmlDoc.CreateElement("question");

XmlElement xeTitle = xmlDoc.CreateElement("title");
xeTitle.InnerText = ds.Tables[0].Rows[i]["qTitle"].ToString();
xeQuestion.AppendChild(xeTitle);

XmlElement xeID = xmlDoc.CreateElement("ID");
xeID.InnerText = ds.Tables[0].Rows[i]["qID"].ToString();
xeQuestion.AppendChild(xeID);

XmlElement xeAnswer = xmlDoc.CreateElement("answer");
xeAnswer.SetAttribute("type", ds.Tables[0].Rows[i]["qType"].ToString());

string qAnswer = ds.Tables[0].Rows[i]["qAnswer"].ToString();
string[] q_Answer = qAnswer.Split('|');

string qVote = ds.Tables[0].Rows[i]["qVote"].ToString();
string[] q_Vote = qVote.Split(',');

for (int j = 0; j < q_Answer.Length; j++)
{
XmlElement xeLabel = xmlDoc.CreateElement("label");
xeLabel.SetAttribute("vote", q_Vote[j].ToString());
xeLabel.SetAttribute("id", (j+1).ToString());
xeLabel.InnerText = q_Answer[j].ToString();
xeAnswer.AppendChild(xeLabel);
}

xeQuestion.AppendChild(xeAnswer);

xeRoot.AppendChild(xeQuestion);
}

xmlDoc.Save(AppDomain.CurrentDomain.BaseDirectory + "\\question.xml");

}

/// <summary>
/// 获取相应留言ID生成id.xml
/// </summary>
/// <param name="num">留言ID</param>
public void mlist(int num)
{
//<?xml version="1.0" encoding="UTF-8"?>
//<leaveWord>
//<content><![CDATA[中山狼，得志更猖狂.]]></content>
//</leaveWord>

//表示XML文档
XmlDocument xmlDoc = new XmlDocument();

//表示 XML 声明节点
//standalone定义了是否可以在不读取任何其它文件的情况下处理该文档,默认为no
//<?xml version="1.0" encoding="UTF-8" standalone="yes"?>生成结束
XmlDeclaration declareation;
declareation = xmlDoc.CreateXmlDeclaration("1.0", "UTF-8", null);
xmlDoc.AppendChild(declareation);

//创建一个leaveWord根元素
XmlElement xeRoot = xmlDoc.CreateElement("leaveWord");
xmlDoc.AppendChild(xeRoot);//Root根元素创建完成

//查找<leaveWord>
XmlNode root = xmlDoc.SelectSingleNode("leaveWord");

AccessDbClass newDB = new AccessDbClass();
OleDbDataAdapter da = newDB.SelectToOleDbDataAdapter("select * from [message] where [qid]=" + num +" order by [addTime] desc");
DataSet ds = new DataSet();
da.Fill(ds);
newDB.Close();

for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
//在<leaveWord>之下创建元素<content>
//XmlElement xeContent = xmlDoc.CreateElement("content");
//指定属性的属性值
//xeContent.SetAttribute("id", "1");
//完成子节点<content>
//root.AppendChild(xeContent);

XmlCDataSection xeContent = xmlDoc.CreateCDataSection("content");
xeContent.InnerText = ds.Tables[0].Rows[i]["mContent"].ToString();
xeRoot.AppendChild(xeContent);
}
xmlDoc.Save(AppDomain.CurrentDomain.BaseDirectory +"\\"+num+".xml");
}
}