How to read xml node names using C#

Question

I am new to this area. Please let me know that how can i get or display

bookstore, book, title, price (DISTINCT Output i needed)

From the following XML file, how can i read and print DISTINCT xml nodes.

<?xml version="1.0" encoding="UTF-8"?>

<bookstore>
  <book>
    <title lang="en">Harry Potter</title>
    <price>29.99</price>
  </book>

  <book>
    <title lang="en">Learning XML</title>
    <price>39.95</price>
  </book>
</bookstore>

Sergey Berezovskiy · Accepted Answer · 2016-01-29 07:54:31Z

2

It's easy to do with Linq to XML:

var xdoc = XDocument.Load(fileName);
var names = xdoc.Descendants() // get all elements from xml
                .Select(e => e.Name.LocalName) // select local name of each element
                .Distinct(); // pick only distinct names

For your sample xml output is

[
  "bookstore",
  "book",
  "title",
  "price"
]

Descendants() is same as XPathSelectElements("//*")

edited Jan 29, 2016 at 7:54

answered Jan 29, 2016 at 7:48

Sergey Berezovskiy

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2 Comments

Sergey Berezovskiy Over a year ago

@NithinPaul they named differently, so they are not same :) Follow the link and read quick introduction to LINQ for xml. And yes, you need using System.Xml.Linq and using System.Linq for projection and distinct call.

Nithin Paul Over a year ago

@Sergery yes i found it. Thanks its working great. :)

roledene JKS · Accepted Answer · 2016-01-29 07:36:23Z

1

try this

    public void Load()
{
    var doc = XDocument.Load(filePath);

    foreach(var unit in doc.Descendants("Unit"))
    {
        string str = string.Format("ID: {0}\r\nName:{0}", unit.Element("id").Value, unit.Element("name").Value);
        MessageBox.Show(str);
    }
}

answered Jan 29, 2016 at 7:36

roledene JKS

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