我要评论读xml
xmldocument xd = new xmldocument();
string filename = @"d:\test.xml";
xd.load(filename);
xmlnodelist xmlnotelist = xd.getelementsbytagname("user");
list<user> users = new list<user>();
foreach (xmlelement item in xmlnotelist)
{
user user = new user();
user.id = int.parse(item.getattribute("id"));
xmlnodelist xnl = item.childnodes;
user.name = xnl[0].innerxml;
user.age =int.parse(xnl[1].innerxml);
user.gender = xnl[2].innerxml;
users.add(user);
}
foreach (var item in users)
{
console.writeline(item);
}
read xml
<?xml version="1.0" encoding="gb2312"?>
<users>
<user id='1'>
<name >张三</name>
<age>15</age>
<gender>男</gender>
</user>
<user id='2'>
<name>李四</name>
<age>14</age>
<gender>男</gender>
</user>
</users>
test.xml
写xml
string filename =@"d:\test.xml";
xmldocument xmldoc = new xmldocument();
xmlnode header = xmldoc.createxmldeclaration("1.0","utf-8",null);
xmldoc.appendchild(header);
//创建一级节点
xmlelement rootnode = xmldoc.createelement("users");
list<user> list = getusers();
foreach (var item in list)
{
xmlelement xn = inseruser(item,xmldoc);
rootnode.appendchild(xn);
}
xmldoc.appendchild(rootnode);
xmldoc.save(filename);
}
/// <summary>
/// 创建整个user的元素
/// </summary>
/// <param name="user"></param>
/// <param name="xmldoc"></param>
/// <returns></returns>
private static xmlelement inseruser(user user, xmldocument xmldoc)
{
xmlelement xn = xmldoc.createelement("user");
xn.setattribute("id", user.id + "");
xn.appendchild(getxmlnode(xmldoc,"name",user.name));
xn.appendchild(getxmlnode(xmldoc, "age", user.age + ""));
xn.appendchild(getxmlnode(xmldoc, "gender", user.gender));
return xn;
}
private static xmlelement getxmlnode(xmldocument xmldoc,string name,string value)
{
xmlelement xn = xmldoc.createelement(name);
xn.innertext = value;
return xn;
}
private static list<user> getusers()
{
list<user> list = new list<user>();
for (int i = 0; i < 10; i++)
{
user user = new user();
user.id = i;
user.name = "name" + i;
user.age = 15;
user.gender = "男";
list.add(user);
}
return list;
}
write xml
实体类
class user
{
public int id { set; get; }
public string name { get; set; }
public int age { get; set; }
public string gender { set; get; }
public override string tostring()
{
return id +","+name + "," +age+"," + gender;
}
}
entity
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