Unable to access inner Xml elements

Question

Question Background:

I have extracted the following inner XML from a larger document:

<Counters total="1" executed="1" passed="1" error="0" failed="0" timeout="0" aborted="0" inconclusive="0" passedButRunAborted="0" notRunnable="0" notExecuted="0" disconnected="0" warning="0" completed="0" inProgress="0" pending="0" xmlns="http://microsoft.com/schemas/VisualStudio/TeamTest/2010" />

Issue:

Using the following code, I have attempted to access each of the elements of the above XML. I need to extract both the name i.e 'total' and its value '1';

 XmlDocument innerXmlDoc = new XmlDocument();

 innerXmlDoc.LoadXml(node.InnerXml);

 XmlElement element = innerXmlDoc.DocumentElement;

 XmlNodeList elements = element.ChildNodes;

 for (int i = 0; i < elements.Count; i++)
 {
     //logic
 }

If someone can tell me how to get these values that would be great.

Hi. Do you want to access to the node Elements or the attributes of the single element Counters ? — Perfect28, May 20 '14 at 15:16
A self closing tag doesn't have any child nodes. It does have attributes. — CoderDennis, May 20 '14 at 15:17
@Ksven Many thanks for your help. I soon solved this after posting this question. — user1352057, May 20 '14 at 15:24
@CoderDennis Many thanks for making me realise I was looking for the attributes of 'Counters'! As as you said, no nodes exist. — user1352057, May 20 '14 at 15:25

score 2 · Answer 1 · answered May 20 '14 at 15:29

You're iterating though the ChildNodes collection of your element and since the element does not have any, you're iterating through the empty nodelist it gives you.

You want to iterate through the Attributes collection instead:

XmlAttributeCollection coll = element.Attributes;

for (int i = 0; i < coll.Count; i++)
{
    Console.WriteLine("name = " + coll[i].Name);
    Console.WriteLine("value = " + coll[i].Value);
}

score 1 · Answer 2 · answered May 20 '14 at 15:15

It seems you need a Dictionary. Try using LINQ to XML

var values = new Dictionary<string,string>();

var xmlDocument = XDocument.Load(path);

XNamespace ns = "http://microsoft.com/schemas/VisualStudio/TeamTest/2010";

values = xmlDocument
        .Descendants(ns + "Counters")
        .SelectMany(x => x.Attributes)
        .ToDictionary(x => x.Name, x => (string)x));

score 0 · Accepted Answer · answered May 20 '14 at 15:23

Managed to solve this myself:

 foreach (XmlNode node in nodes) 
 {
      XmlDocument innerXmlDoc = new XmlDocument();

      innerXmlDoc.LoadXml(node.InnerXml);

      var list  = innerXmlDoc.GetElementsByTagName("Counters");

      for (int i = 0; i < list.Count; i++)
      {
         string val = list[i].Attributes["total"].Value;
      }
 };

Unable to access inner Xml elements

3 Answers3