Using xpath to find a node without knowing attributes name in c#

Question

Hello My Friends i have an xml like this:

<?xml version="1.0" encoding="utf-8" ?>
<books>    
  <book category="Fiction" >
     <author>Jack Kerouac</author>
     <title>On the Road</title>
 </book>

  <book category="IT" >
     <author>Stephen Walther</author>
     <title>ASP.NET Unleashed</title>
 </book>     
</books>

It is OK if i use this xpath query :

string query = "//book[@category='Fiction']//title";
XPathNodeIterator xPathIt = p_xPathNav.Select(query);

and I'll get the answer right : Jack Kerouac

But the problem is here,when i don't have attributes name like this:

string query = "//book['Fiction']//title";

And I don't know what is the name of the first attributes of nodes.

How can i find a node with xpath , without knowing first attribute name of any nodes? (i just have attribute value for filtering the nodes)

Thanks

You should post the xml you have problem with, not the one you found an answer to. — Guy

jdweng jdweng · Accepted Answer · 2017-08-13T08:32:39

Use xml linq :

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);

            XElement book = doc.Descendants("book").Where(x => x.Descendants().Select(y => (string)y == "Jack Kerouac").Any()).FirstOrDefault();
        }
    }
}

Using xpath to find a node without knowing attributes name in c#

1 Answers