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Detailed explanation of how to replace element names in XML documents (picture)

黄舟
黄舟Original
2017-03-24 17:17:352368browse

Don’t underestimate this operation, it is actually not easy. Note that we are replacing the element's name, not its value. The content of

XML is a DOM tree in memory. To replace an element, you actually need to create a new element and copy all the child elements of the original element. Using ReplaceWith in LINQ TO XML

using System;
using System.Linq;
using System.Xml.Linq;
namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            XDocument doc = new XDocument(
                new XElement("Tables"
                    , new XElement("Table"
                        , new XElement("Name", "Orders")
                        , new XElement("Owner", "chenxizhang"))
                    , new XElement("Table"
                        , new XElement("Name", "Customers")
                        , new XElement("Owner", "Allen"))
                    ));
            Console.WriteLine("原始的XML内容:");
            Console.WriteLine(doc);
            //改变Tables元素名称为Items
            Console.WriteLine("改变了根元素之后显示的效果:");
            XElement root = doc.Element("Tables");
            root.ReplaceWith(new XElement("Items", root.Elements("Table")));
            Console.WriteLine(doc);
            //改变Table元素名称为Item 
            Console.WriteLine("改变了子元素之后显示的效果:");
            foreach (var item in doc.Elements("Items").Descendants().ToList())//这里一定要先ToList
            {
                item.ReplaceWith(new XElement("Item", item.Descendants()));
            }
            Console.WriteLine(doc);
            Console.Read();
        }
    }
}

Detailed explanation of how to replace element names in XML documents (picture)

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