c# - 如何在 C# 中修改 XML 文件？

Question

<Customers>
  <Customer1>
    <Name>Bobby</Name>
    <Age>21</Age>
    <Address>Panjim</Address>
  </Customer1>
  <Customer2>
    <Name>Peter</Name>
    <Age>32</Age>
    <Address>Panjim</Address>
  </Customer2>
  <Customer4>
    <Name>Joel</Name>
    <Age>32</Age>
    <Address>Mapusa</Address>
  </Customer4>
</Customers>

所以问题是我想删除一个特定的元素，当我删除第一个元素，即 customer1 时，我想更新其他元素。我的意思是我想创建 customer3、customer2 和 customer2、customer1。谁能帮我实现这个目标？

Answer 1

关于:

class Program {
    static void Main(string[ ] args) {
        XDocument doc = XDocument.Load("D:\\file.xml"); //example file
        doc.Root.SwitchAndRemove("Customer1");
        doc.Save("D:\\file.xml");
    }
}

public static class Utilities {
    public static void SwitchAndRemove(this XElement customers, XName name) {
        var x = customers.Descendants().Where(e => e.Name == name).Select((element, index) => new { element, index }).Single();

        int count = 0;
        XElement temp = x.element;
        foreach (XElement el in customers.Nodes()) {
            if (count == x.index + 1) {
                temp.RemoveAll();
                temp.Add(el.Descendants().ToArray());
                temp = el;
            }
            else
                count++;
        }

        temp.Remove();
    }
}

通过将您的 xml 作为输入，输出如下:

<?xml version="1.0" encoding="utf-8"?>
<Customers>
  <Customer1>
    <Name>Peter</Name>
    <Age>32</Age>
    <Address>Panjim</Address>
  </Customer1>
  <Customer2>
    <Name>Joel</Name>
    <Age>32</Age>
    <Address>Mapusa</Address>
  </Customer2>
</Customers>