Question

  <?xml version="1.0" encoding="utf-8" ?>
    <questions>
      <question num="1">Employees should be involved in setting their goals.</question>
      <question num="2">Most people resists change.</question>
      <question num="3">Manager should guide rather control.</question>
      <question num="4">Average person is easily decieved.</question>
    </questions>

如何将当前属性值设置为变量i，使用此当前属性i调用方法next（）时，它应检索下一个节点值（例如，当下一个（）时当前属性值为1调用它应该检索第二个节点值，当再次调用next（）时，它应该使用System.Xml检索第三个属性值？

我曾尝试使用Xpath检索第一个节点值，但我不知道如何将当前属性值设置为变量，然后使用变量移动到下一个节点值。以下是我试过的代码。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
using System.Xml.XPath;

namespace ConsoleApplication14
{
    interface IQuestion
    {
        void Question1();
        void Next();

    }
    class Question : IQuestion
    {
         string BuildXpathQuery(int c)
        {

            string part1 = @"questions/question[@num='";
            string part2 = @"']";
            string MyQuery = part1 + c + part2;
            return MyQuery;

        }
        public void Question1()
        {
            XmlDocument doc = new XmlDocument();
            doc.Load("C:\\Users\\Murari\\Documents\\Visual Studio 2015\\Projects\\ConsoleApplication14\\ConsoleApplication14\\XMLFile1.xml");


            XmlNode xnList = doc.SelectSingleNode(BuildXpathQuery(1));
            if (xnList != null)
            {
                Console.WriteLine(xnList.InnerXml);
                Console.ReadKey();
            }
        }

        public void Next()
        {

        }    
    }


    class Program
    {
        static void Main(string[] args)
        {
            IQuestion ques = new Question();
            ques.Question1();
            ques.Next();


        }
    }
}

Answer 1

您只需创建一个List＆lt;＆gt;宾语。使用XML Linq是最好的方法

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;

namespace ConsoleApplication1
{
    class Program
    {
        const string FILENAME = @"c:\temp\test.xml";
        static void Main(string[] args)
        {
            XDocument doc = XDocument.Load(FILENAME);

            var xnList = doc.Descendants("question").Select(x => new
            {
                num = (int)x.Attribute("num"),
                text = x.Value
            }).ToList();

            foreach (var question in xnList)
            {
            }
        }
    }
}

如何在Xml中获取当前属性值并使用当前属性值，检索下一个节点值？

1 个答案: