IPAddress.xml?? 文件如下：

<?xml?version="1.0"?encoding="utf-8"?>
<IP>
??????<IPAddress>192.168.0.120</IPAddress>
</IP>

?

在 Form 窗體(讀取XML配置.Designer.cs)中有如下控件：

代碼 ????????private??System.Windows.Forms.Button??button1;??????????//“讀取”按鈕
????????private??System.Windows.Forms.Button??button2;??????????//“修改”按鈕
????????private??System.Windows.Forms.TextBox??textBox1;?????//?用于顯示和修改IP地址
????????private??System.Windows.Forms.Label??label1;??????????????//?顯示“IP地址：”
????????private??System.Windows.Forms.Button??button3;??????????//?“保存”按鈕

?

讀取XML配置.cs? 文件如下：

代碼 using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Text;
using?System.Windows.Forms;
//myself
using?System.Xml;

namespace?CS_Test
{
????public?partial?class?讀取XML配置?:?Form
????{
????????public?讀取XML配置()
????????{
????????????InitializeComponent();
????????}

????????XmlDocument?doc?=?null;
????????XmlNodeList?nodeList?=?null;
????????string?path?=null;
????????//讀取
????????private?void?button1_Click(object?sender,?EventArgs?e)
????????{
????????????doc?=?new?XmlDocument();
????????????//讀取文件地址
????????????path?=?Application.StartupPath.ToString();
????????????//MessageBox.Show(path);
????????????int?n?=?path.LastIndexOf("bin\\Debug");
????????????path?=?path.Substring(0,?n);
????????????doc.Load((path?+?"IPAddress.xml"));
????????????MessageBox.Show(path?+?"IPAddress.xml");

????????????if?(doc?!=?null)
????????????{
???????????????nodeList?=?doc.GetElementsByTagName("IPAddress");
???????????????textBox1.Text?=
??????????????????nodeList[0].FirstChild.Value.ToString();
????????????}
????????}
????????//修改
????????private?void?button2_Click(object?sender,?EventArgs?e)
????????{
????????????textBox1.ReadOnly?=?false;
????????}
????????//保存
????????private?void?button3_Click(object?sender,?EventArgs?e)
????????{
????????????string?newIP?=?textBox1.Text.ToString();
????????????if?(nodeList?!=?null)
????????????{
????????????????if?(textBox1.Text.Trim()?!=?"")
????????????????{
????????????????????//通過(guò)根節(jié)點(diǎn)創(chuàng)建新元素
????????????????????XmlNode?n?=?doc.CreateTextNode(textBox1.Text.Trim());
????????????????????//通過(guò)父節(jié)點(diǎn)替換子節(jié)點(diǎn)
????????????????????nodeList[0].ReplaceChild(n,nodeList[0].FirstChild);
????????????????????doc.Save(path?+?"IPAddress.xml");
????????????????????MessageBox.Show("IP地址修改成功！");
????????????????????textBox1.ReadOnly?=?true;
????????????????}
????????????}
????????}
????}
????class?ProgramXML
????{
????????static?void?Main(string[]?args)
????????{
????????????Application.Run(new?讀取XML配置());
????????}
????}
}


本文轉(zhuǎn)自鋼鋼博客園博客，原文鏈接：http://www.cnblogs.com/xugang/archive/2010/04/17/1714199.html，如需轉(zhuǎn)載請(qǐng)自行聯(lián)系原作者

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