Question

在C＃中使用带有xelement类的循环我希望得到以下结果！

<data>

 <description>Cities that I have recently visited.</description>

 <cities>
  <city id="1">
   <name>Chicago1</name>
   <state>IN1</state>
  </city>

  <city id="2">
   <name>Chicago2</name>
   <state>IN2</state>
  </city>

  <city id="3">
   <name>Chicago3</name>
   <state>IN3</state>
  </city>

 </cities>

 </data>

这是我到目前为止尝试过的代码！任何帮助？我需要使用循环并获得上述值。我使用的循环被评论..

namespace ConsoleApplication13
{
    class Program
    {
        static void Main(string[] args)
        {
            XElement xmlDataStore = new XElement("data",
            new XElement("cities",

    new XElement("city", new XAttribute("id", "1")),
    new XElement("city", "Colombo"),
    new XElement("name", "lname"),
    new XElement("state", "0772569984")

    )
            )
                ;

            //var list = from x in XElement.ReadFrom(xmlDataStore).Element("Node").Elements() 
            //select new
            //{
            //   Name = x.Name,
            //   Value = (string)x
            //};


            Console.WriteLine(xmlDataStore);
            Console.ReadLine();

        }


    }
}

我得到了什么...

<cities>
  <city id="1">
   <name>Chicago1</name>
   <state>IN1</state>
  </city>
  </cities>

我想要的......

<data>

 <description>Cities that I have recently visited.</description>

 <cities>
  <city id="1">
   <name>Chicago1</name>
   <state>IN1</state>
  </city>

  <city id="2">
   <name>Chicago2</name>
   <state>IN2</state>
  </city>

  <city id="3">
   <name>Chicago3</name>
   <state>IN3</state>
  </city>

 </cities>

 </data>

Answer 1

后裔检查

XDocument xdoc = XDocument.Load("Xml File Path"); //save that xml in "C:\test.xml "
IEnumerable<XElement> xEle = xdoc.XPathSelectElements("//cities");
   if(xEle !=null)
    {
      foreach(XElement xE in  Xelement.Descendants())
        {
            // here you will get everything ......
         }
     }

你可以循环

Answer 2

好的，我仍然不知道真正的问题是什么，所以让我们从这开始：

private static void citiesXml()
{
  const string desc = "Cities that I have recently visited.";

  // set up a list of all the different cities
  var list = new List<Tuple<string, string>>();
  list.Add(new Tuple<string, string>("Chicago1", "IN1"));
  list.Add(new Tuple<string, string>("Chicago2", "IN2"));
  list.Add(new Tuple<string, string>("Chicago3", "IN3"));

  var xmlDataStore = new XElement("data", new XElement("description", desc));
  var xmlCities = new XElement("cities");

  // loop through the list of cities and create a XElement for each single one
  for (var i = 0; i < list.Count; i++)
  {
    xmlCities.Add(new XElement("city", 
        new XAttribute("id", i + 1), 
        new XElement("name", list[i].Item1), 
        new XElement("state", list[i].Item2)));
  }

  // add the cities to the data store object
  xmlDataStore.Add(xmlCities);

  Console.WriteLine(xmlDataStore);
  Console.ReadLine();
}

这将打印：

<data>
  <description>Cities that I have recently visited.</description>
  <cities>
    <city id="1">
      <name>Chicago1</name>
      <state>IN1</state>
    </city>
    <city id="2">
      <name>Chicago2</name>
      <state>IN2</state>
    </city>
    <city id="3">
      <name>Chicago3</name>
      <state>IN3</state>
    </city>
  </cities>
</data>

据我所知，唯一的区别是城市之间没有空行。丢失的空行是问题吗？

如何循环Xelement类并获得以下结果

2 个答案: