Reading XDocument

have tried to parse an XML file like this:

<books>
<book>
<attr name="Moby Dick">Moby Dick is a classic</attr>
<attr isbn="isbnNumber">123456789</attr>
</book>
</books>

How can I get the value of "123456789"? I don't really need the first attribute.

I tried reading these in a foreach loop getting XElements but I keep getting a NULL object exception.

foreach(XElement xe in XDoc.Attribute("attr"))
{
string str = xe.Attribute("isbnNumber").Value // NULL EXCEPTION HERE
}

Thanks in advance...

Because "attr" is not an attribute, it is a node named attribute, which makes no sense. Instead, use this type of format (which does make sense)

Code:

---

<books>
  <book>
    <name>Moby Dick</name>
    <isbn>123456789</isbn>
  </book>
</books>

---

string str = xe.Attribute("isbnNumber").Value // NULL EXCEPTION HERE

What if you added:

if (xe.Attribute != null)
{
string str = xe.Attribute("isbnNumber").Value
}

Does that do anything. I prefer using XmlNode

such like:
XmlDocument doc = new xmlDocument();
doc.Load(xml);
foreach (XmlNode b in doc.DocumentElement.Attributes)
{
if (node != null)
{
string str = xe.Attribute("isbnNumber").Value
}
}

If you check for null then it will just do nothing. attr in the example is *not* an attribute, it is a node, and that is why it fails.