C# 如何使用system.xml向具有属性的节点添加“子”子节点
祝你新年快乐! 我得到了以下XML结构:C# 如何使用system.xml向具有属性的节点添加“子”子节点,c#,xml,xmldocument,C#,Xml,Xmldocument,祝你新年快乐! 我得到了以下XML结构: <?xml version="1.0" encoding="UTF-8"?> <SW.CodeBlock ID="0"> <SW.CompileUnit ID="1"> <AttributeList> <NetworkSource> <FlgNet xmlns="http://www.TEST.com">
<?xml version="1.0" encoding="UTF-8"?>
<SW.CodeBlock ID="0">
<SW.CompileUnit ID="1">
<AttributeList>
<NetworkSource>
<FlgNet xmlns="http://www.TEST.com">
<Parts> </Parts>
</FlgNet>
</NetworkSource>
</AttributeList>
</SW.CompileUnit>
<SW.CompileUnit ID="2">
<AttributeList>
<NetworkSource>
<FlgNet xmlns="http://www.TEST.COM">
<Parts> </Parts>
</FlgNet>
</NetworkSource>
</AttributeList>
</SW.CompileUnit>
</SW.CodeBlock>
但它只在第一个SW.CompileUnit节点中添加ID为1的子节点
提前感谢使用XML Linq。我不确定你的要求是否完全正确
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
string xml =
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>" +
"<SW.CodeBlock ID=\"0\">" +
"<SW.CompileUnit ID=\"1\">" +
"<AttributeList>" +
"<NetworkSource>" +
"<FlgNet xmlns=\"http://www.TEST.com\">" +
"<Parts> </Parts>" +
"</FlgNet>" +
"</NetworkSource>" +
"</AttributeList>" +
"</SW.CompileUnit>" +
"<SW.CompileUnit ID=\"2\">" +
"<AttributeList>" +
"<NetworkSource>" +
"<FlgNet xmlns=\"http://www.TEST.COM\">" +
"<Parts> </Parts>" +
"</FlgNet>" +
"</NetworkSource>" +
"</AttributeList>" +
"</SW.CompileUnit>" +
"</SW.CodeBlock>";
XDocument doc = XDocument.Parse(xml);
var compileUnits = doc.Descendants("SW.CompileUnit").Select(x => new {
ID = (string)x.Attribute("ID"),
parts = x.Descendants().Where(y => y.Name.LocalName == "Parts").FirstOrDefault()
}).ToList();
foreach (var compileUnit in compileUnits)
{
compileUnit.parts.Add(new XElement(compileUnit.parts.Name.Namespace + "ID", compileUnit.ID));
}
}
}
}
SelectSingleNode仅返回第一个匹配的元素。要获取所有匹配的元素,应使用SelectNodes:
var nodes = xdoc.SelectNodes("//NS2:Parts",nsmgr);
foreach(XmlNode node in nodes)
{
//create new myXMLElement
....
//and then append it to current <Parts>
node.AppendChild(myXMLElement);
}
顺便说一句,SelectNodes和SelectSingleNode的参数都是XPath表达式,因为你写了我使用VS2015、C,而不是使用Linq或XPath等等。非常感谢你的帮助,是的,我想我错过了XPath的这一部分;谢谢你的帮助@har07的解决方案更适合,谢谢,但我不确定您是否想从编译器单元获取id并插入到部件中。新的身份证号码来自哪里?
var nodes = xdoc.SelectNodes("//NS2:Parts",nsmgr);
foreach(XmlNode node in nodes)
{
//create new myXMLElement
....
//and then append it to current <Parts>
node.AppendChild(myXMLElement);
}