c# vs xml

gino gino

i'm sorry for my bad english.
i'm an italian student and i've a problem with the execution of a xpath expression.
i've a document named book.xml in C:\ and i don't know for what reason this code i wrote doesn't work:
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XmlTextReader reader = new XmlTextReader(@"c:\book.xml");
XmlDocument doc = new XmlDocument();
doc.Load(reader);
XmlNodeList nodeList;
XmlElement root = doc.DocumentElement;
// nodeList = root.SelectNodes("/bookstore/book/price[text()>'9.00']"); <-- this query works
nodeList = root.SelectNodes("/bookstore/book/price[text()='11.99']"); // <-- this query doesn't work
Console.Write(nodeList.Count.ToString());
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this is the structure of book.xml

bookstore
book
price 11.99 /price
author .. author
title .. /title
/book
...other books
/bookstore

if i can't solve this problem my work doesn't go on :(

2 Replies

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gino gino21y ago
there was an error in the xml file, not in the code ehehehe...i'm too much stupid!!!
joe21y ago
Well first off, there's nothing wrong with your English!

If this is your Xml structure:

  11.99
  Author One
  Book One

  12.99
  Author Two
  Book Two

There's nothing wrong with your code. I'd maybe drop the use of the XmlTextReader though:

XmlDocument doc = new XmlDocument();
doc.Load(@"c:\book.xml");
XmlNodeList nodeList;
XmlElement root = doc.DocumentElement;
nodeList = root.SelectNodes("/bookstore/book/price[text()>'9.00']"); // <-- this query works
//nodeList = root.SelectNodes("/bookstore/book/price[text()='11.99']"); // <-- this query works too

Console.Write(nodeList.Count.ToString());
Console.ReadLine();

Joe