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：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
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：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
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：
|
1
2
3
4
5
6
|
<?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。