C# winfrom实现读取修改xml

本文示例为大家分享了winfrom实现读取修改xml的具体代码，供大家参考，具体内容如下

在winfrom窗体中放一个文本框，2个按钮，一个panle，如下图

form.cs文件中的代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Xml;

namespace XMLConfiger
{
 public partial class Form1 : Form
 {
  public Form1()
  {
   InitializeComponent();
  }
   public string Path;
   xmlConfig xmlconfig;
  //读取xml内容
  private void button1_Click(object sender, EventArgs e)
  {

   OpenFileDialog fileName = new OpenFileDialog();//定义一个文件打开控件
   fileName.InitialDirectory = Application.StartupPath;//设置打开控件后，默认目录为exe运行文件所在文件夹
   fileName.Filter = "所有XML文件|*.XML";//设置控件打开的文件类型
   fileName.FilterIndex = 2;//设置控件打开文件类型的显示顺序
   fileName.RestoreDirectory = true;//设置对话框是否记忆之前打开的目录
   if (fileName.ShowDialog() == DialogResult.OK)
   {
     Path = fileName.FileName.ToString();//获得用户选择的完整路径
     Name = Path.Substring(Path.LastIndexOf("\\") + 1);//获取用户选择的不带路径的文件名
     xmlconfig = new xmlConfig(Path);
     int count = xmlconfig.GetCount();
     int ysplit = 30;
     int x1 = 3;
     for (int i = 0; i < count; i++)
     {
       Label lb = new Label();
       lb.Text = xmlconfig.GetName(i).ToString();
       lb.Tag = "";
       lb.Size = new System.Drawing.Size(60, 23);
       lb.AutoSize = false;
       TextBox tb = new TextBox();
       tb.Text = xmlconfig.GetXmlNode(i).ToString();
       tb.Tag = i;
       lb.Location = new Point(x1, i * ysplit);
       tb.Location = new Point(x1 + lb.Size.Width + 10, i * ysplit);
       panel1.Controls.Add(lb);
       panel1.Controls.Add(tb);

     }

   }
  }
  //修改xml内容
  private void button2_Click(object sender, EventArgs e)
  {
   for (int i = 0; i < this.panel1.Controls.Count; i++)
   {
    if (this.panel1.Controls[i].Tag != null && this.panel1.Controls[i].Tag.ToString() != "")
     {
      TextBox textbox1 = (TextBox)(this.panel1.Controls[i]);
      xmlconfig.SavaXMLConfig(Convert.ToInt32(textbox1.Tag), textbox1.Text);
     }
   }

   xmlconfig.SavaConfig();
  }

 }
}

xmlConfig.cs中的代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.IO;
using System.Data;
using System.Windows.Forms;

namespace XMLConfiger
{
 public class xmlConfig
 {
  public int count = 0;
  public string path="";
  private List<string> strlist = new List<string>();
  private List<string> listName = new List<string>();
  //构造函数获得所有信息
  public xmlConfig(string Path)
  {
   XmlDocument xmlDoc = new XmlDocument();
   xmlDoc.Load(Path);//读取指定的XML文档
   path = Path;
   XmlNode roomlist = xmlDoc.SelectSingleNode("rss");
   XmlNodeList list = roomlist.ChildNodes;
   foreach (XmlNode item in list)
   {
    listName.Add(item.Attributes["Name"].Value);
    strlist.Add(item.InnerText);
    count = listName.Count;
   }

  }
  //获取所有节点的个数
  public int GetCount()
  {
   return count;
  }
  //通过tag值获取当前返回的Name
  public string GetName(int tag)
  {
   return listName[tag];
  }
  //通过tag值获取当前返回的value
  public string GetXmlNode(int tag)
  {
   return strlist[tag];
  }
  //修改xml中所有的内容
  public void SavaConfig()
  {
   XmlDocument XMLDoc = new XmlDocument();
   XMLDoc.Load(path);
   XmlNodeList nodeList=XMLDoc.SelectSingleNode("rss").ChildNodes;//获取节点的所有子节点
   for (int i = 0; i < nodeList.Count; i++)//遍历所有子节点
   {
    XmlElement xe = (XmlElement)nodeList[i];
    XmlNode ChildXml = nodeList[i];
    for (int j = 0; j < strlist.Count; j++)
    {
     if (listName[j] == ChildXml.Attributes["Name"].Value)
     {
      xe.SetAttribute("Name", listName[i]);
      xe.InnerText = strlist[i];
      break;
     }

    }

   }
   XMLDoc.Save(path);//保存。
  }
  //修改xml中某一个节点
  public void SavaXMLConfig(int tag, string Name)
  {
   strlist[tag] = Name;
  } 

 }
}

xml文件：

<?xml version="1.0" encoding="utf-8"?>
<rss version="2.0">
 <Student Name="姓名">宁泽涛</Student>
 <Age Name="年龄">22</Age>
 <Hobby Name="爱好">游泳</Hobby>
</rss>

以上就是本文的全部内容，希望对大家的学习有所帮助。