更新时间:2022-09-19 23:40:50
C# 对XML基本操作包括读取节点的数据,添加节点。读取节点属性,修改节点属性等。具体如下:
XML文件:文件在MyDocument文件夹下
<?xml version= "1.0" encoding= "utf-8" ?>
<PersonF xmlns= "" Name= "(test)work hard work smart!" >
<person Name= "Person1" >
<ID>1</ID>
<Name>XiaoA</Name>
<Age>59</Age>
</person>
<person Name= "Person2" >
<ID>2</ID>
<Name>XiaoB</Name>
<Age>29</Age>
</person>
<person Name= "Person3" >
<ID>3</ID>
<Name>XiaoC</Name>
<Age>103</Age>
</person>
<person Name= "Person4" >
<ID>4</ID>
<Name>XiaoD</Name>
<Age>59</Age>
</person>
</PersonF> |
Code:说明都在注释里。
public void TestXML()
{ XmlDocument doc = new XmlDocument();
string path = "http://www.cnblogs.com/MyDocument/Person.xml" ;
try
{
//doc.Load(Server.MapPath()
doc.Load(path);
//1、读取单个节点的数据
XmlNode node = doc.SelectSingleNode( "PersonF" );
//2、读取多个节点的数据
XmlNodeList nodeList1 = doc.SelectNodes( "PersonF/person" );
//3.1 读取具体节点的具体值 如:属性为Person2的第二个节点Name的InnerText
XmlNodeList nodeList = doc.DocumentElement.GetElementsByTagName( "person" );
foreach (XmlNode node2 in nodeList1) //当然也能用nodeList的值
{
if (node2.Attributes[ "Name" ].InnerText == "Person2" )
{
Console.WriteLine(node2.ChildNodes[1].InnerText);
}
}
//3.2 读取ID为2所在的节点第二个子节点Name的InnerText
XmlNode node3 = doc.SelectSingleNode( "PersonF/person[ID=2]" );
string strNode3 = node3.ChildNodes[1].InnerText;
//3.3利用下面的方法可以找到ID为2的节点
XmlNodeList nodeList2 = doc.SelectNodes( "//person//ID" );
XmlNode node4 = null ;
foreach (XmlNode node5 in nodeList2)
{
if (node5.InnerText == "2" )
{
node4 = node5;
break ;
}
}
Console.WriteLine(node4.InnerText);
//4、读取节点的属性
string Name = node.Attributes[ "Name" ].InnerText;
//5 修改节点的属性
node.Attributes[ "Name" ].InnerText = "work hard work smart!" ;
doc.Save(path);
//6 添加自定义的节点
XmlTextReader reader = new XmlTextReader(path);
XmlElement root = doc.DocumentElement; //获取根节点
XmlElement tagOuter = doc.CreateElement( "person" );
//设置节点属性
tagOuter.SetAttribute( "Name" , "Person5" );
XmlElement tagIN_Name = doc.CreateElement( "Name" );
XmlElement tagIN_ID = doc.CreateElement( "ID" );
tagIN_Name.InnerText = "work hard work smart!" ;
tagIN_ID.InnerText = "32" ;
tagOuter.AppendChild(tagIN_Name);
tagOuter.AppendChild(tagIN_ID);
root.AppendChild(tagOuter); //添加tagOuter到XML文件的最后
reader.Close();
doc.Save(path);
}
catch (System.Exception e)
{
throw new Exception(e.Message);
}
} |
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本文转自Work Hard Work Smart博客园博客,原文链接:http://www.cnblogs.com/linlf03/archive/2011/10/10/2205896.html,如需转载请自行联系原作者