reading value from XML?

Question

The XML data:

<LIST>
  <TITLE>Item</TITLE>
  <YEAR>2013</YEAR>
  <NAME>
    <NAME_ n="1">AB</NAME_>
    <NAME_ n="2">CD</NAME_>
    <NAME_ n="3">EF</NAME_>
    <NAME_ n="4">GH</NAME_>
    <NAME_ n="5">IJ</NAME_>
  </NAME>
  <PRICE>
    <PRICE_ n="1">100</PRICE_>
    <PRICE_ n="2">103</PRICE_>
  </PRICE>
  <AV>
    <AV_ n="0">128,457</AV_>
    <AV_ n="1">1,746,301</AV_>
    <AV_ n="2">173,247</AV_>
    <AV_ n="3">246,102</AV_>
  </AV>
  <PIC>
    www.example.com/pictest.jpg
  </PIC>
  <URL>www.test.com/itemtest</URL>
</LIST>

I tried with this code:

XmlTextReader reader = new XmlTextReader(a);
while (reader.Read())
{
    if (reader.Name == "AV")
    {
        label1.Text += reader.Value;
    }

Now, I know that I need more help with my code since I can't get any output!
How can I read values from this XML?

Anyone can help me for get all value from this XML ? bcs I'm very very new in xml and need for sample for start work ! :(

Answer 1

To get all numeric values and attribute number from contents of AV_ node, use next script:

string str = "..."; //xml contents go here

var xml = XDocument.Parse(str);

var values = xml.Descendants("AV_")
                .Select(n => n.Attribute("n").Value + " : " + n.Value);


values.ToList()
      .ForEach(Console.WriteLine);

prints:

0 : 128,457
1 : 1,746,301
2 : 173,247
3 : 246,102

don't forget to add reference to Linq to XML namespace using System.Xml.Linq

Answer 2

You are finding the parent element and getting the text value of it. It doesn't have a text value, only another child.

Try instead

        XmlTextReader reader = new XmlTextReader(a);
        while (reader.Read())
        {
            if (reader.Name == "AV_")
            {
                label1.Text += reader.Value;
            }