想从sql从导出xml文件，使用VISUAL .NET2003编写的代码，不知道错在哪里了！代码测试无法通过，数据库已建立，并且在查询工具中可以正常查询。
请教各位高手哪个地方需要修改？
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using MSXML2;
using ADODB;
namespace example_8._1
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
ADODB._Connection pConn;
ADODB._Recordset pRS;
String pSelStr;
String pUser;
String pPSW;
String sname;
String dbname;
IXMLDOMDocument xmlDoc;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.textBox1 = new System.Windows.Forms.TextBox();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(128, 48);
this.textBox1.Multiline = true;
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(296, 208);
this.textBox1.TabIndex = 0;
this.textBox1.Text = "";
//
// button1
//
this.button1.Location = new System.Drawing.Point(152, 304);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(72, 64);
this.button1.TabIndex = 1;
this.button1.Text = "从数据库表生成XML文档";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(328, 304);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(72, 64);
this.button2.TabIndex = 2;
this.button2.Text = "显示生成的XML文档";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(584, 445);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.textBox1);
this.Name = "Form1";
this.Text = "从数据库表生成XML文档";
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void button1_Click(object sender, System.EventArgs e)
{
if(this.Connect2DB())
{
xmlDoc=new DOMDocument40Class();
IXMLDOMProcessingInstruction pPI;
pPI=xmlDoc.createProcessingInstruction("xml","version='1.0' encoding='GB2312' standalone='no'");
xmlDoc.appendChild(pPI as IXMLDOMNode);
IXMLDOMComment pComment;
pComment=xmlDoc.createComment("下面是实例");
xmlDoc.appendChild(pComment as IXMLDOMNode);
IXMLDOMElement pElement;
IXMLDOMElement pElementChild;
IXMLDOMText pText;
pElement=xmlDoc.createElement("students");
xmlDoc.appendChild(pElement as IXMLDOMNode);
int count;
pRS.MoveFirst();
while(pRS.EOF==false)
{
count=0;
pElement=xmlDoc.createElement("student");
foreach(ADODB.Field pField in pRS.Fields)
{
pElementChild=xmlDoc.createElement(pField.Name);
pText=xmlDoc.createTextNode(pRS.get_Collect(count).ToString());
pElementChild.appendChild(pText as IXMLDOMNode);
count++;
pElement.appendChild(pElementChild as IXMLDOMNode);
// MessageBox.Show(pField.Name);
}
xmlDoc.documentElement.appendChild(pElement as IXMLDOMNode);
pRS.MoveNext();
}
xmlDoc.save(Application.StartupPath+"//"+"test.xml");
MessageBox.Show("生成成功！");
pRS.Close();
pConn.Close();
}
}
private bool Connect2DB()
{
try
{
pConn=new ConnectionClass();
pRS=new ADODB.RecordsetClass();
dbname="students";
sname="aubs123"+"\\"+"JT";
pUser="sa";
pPSW="sa";
pSelStr="SELECT * From students";
pConn.Open("Provider=SQLOLEDB.1;Server=" + sname + ";Initial Catalog=" + dbname,pUser,pPSW,-1);
pRS.Open(pSelStr,pConn,ADODB.CursorTypeEnum.adOpenDynamic,ADODB.LockTypeEnum.adLockOptimistic,-1);
return true;
}
catch
{
return false;
}
}
private void button2_Click(object sender, System.EventArgs e)
{
this.textBox1.Text=xmlDoc.xml;
}
}
}
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2010/5/24 15:07:00
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帮忙啊，没办法了！xml与sql
