Question

I am using this XML file:

<root>     <level1 name="A">         <level2 name="A1" />         <level2 name="A2" />     </level1>     <level1 name="B">         <level2 name="B1" />         <level2 name="B2" />     </level1>     <level1 name="C" /> </root> 

Could someone give me a C# code using LINQ, the simplest way to print this result:
(Note the extra space if it is a level2 node)

A   A1   A2 B   B1   B2 C 

Currently I have written this code:

XDocument xdoc = XDocument.Load("data.xml")); var lv1s = from lv1 in xdoc.Descendants("level1")            select lv1.Attribute("name").Value;  foreach (var lv1 in lv1s) {     result.AppendLine(lv1);     var lv2s = from lv2 in xdoc...??? } 

Answer 1

Try this.

using System.Xml.Linq;  void Main() {     StringBuilder result = new StringBuilder();      //Load xml     XDocument xdoc = XDocument.Load('data.xml');      //Run query     var lv1s = from lv1 in xdoc.Descendants('level1')                select new {                     Header = lv1.Attribute('name').Value,                    Children = lv1.Descendants('level2')                };      //Loop through results     foreach (var lv1 in lv1s){             result.AppendLine(lv1.Header);             foreach(var lv2 in lv1.Children)                  result.AppendLine('     ' + lv2.Attribute('name').Value);     }      Console.WriteLine(result); }