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测试数据ponentmodel;
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。
dy("nrwz");
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