Get only the first value from XPathNavigator?

Question

var xml= @"<?xml version='1.0'?>
                 <bookstore>
                 <book genre=""3"">
                   <title>The Gorgias3</title>
                   <author>
                     <name>Plato3</name>
                   </author>
                   <price>3</price>
                 </book>
            <book genre=""4"">
                   <title>The Gorgias4</title>
                   <author>
                     <name>Plato4</name>
                   </author>
                   <price>4</price>
                 </book>
            </bookstore>";



XPathDocument docNav = new XPathDocument(new StringReader(xml));
XPathNavigator navigator = docNav.CreateNavigator();
XPathNodeIterator NodeIter = navigator.Select("/bookstore/book/title");

foreach (XPathNavigator selectedNode in NodeIter)
{
    Console.WriteLine(selectedNode.Name);
}

How can i access straight to the first /bookstore/book/title" child and get his value.

I dont want to iterate and break the loop

the result should be "The Gorgias3"

p.s. i dont want to modify the xpath expression with the first filter.

I want to Know how i can do it with c#.

Which context are you asking the question in? -- a) knowing the '1st child' is going to be a title -- b) in such a way that you can specify what the first child is (ie title, author, ...) -- I ask because when when I examine your xml my thought without other information would be that the '1st child' is actually and that said child has children as listed above... — Hardryv, Feb 01 '12 at 15:30

score 4 · Accepted Answer · answered Feb 01 '12 at 15:31

4

Use:

var node = navigator.SelectSingleNode("/bookstore/book/title");

Console.WriteLine(node);

answered Feb 01 '12 at 15:31

Kirill Polishchuk

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why does navigator.Select("/bookstore/book[1]/title[1]"); doesnt wrk ? – Royi Namir Feb 01 '12 at 15:48
@RoyiNamir, Why? It works. It returns `XPathNodeIterator` which implements `IEnumerable`. So it returns `IEnumerable` with 1 item. – Kirill Polishchuk Feb 01 '12 at 17:37

Get only the first value from XPathNavigator?

1 Answers1