Logo Questions Linux Laravel Mysql Ubuntu Git Menu
 

How to read attribute value from XmlNode in C#?

Tags:

c#

.net

xml

Try this:

string employeeName = chldNode.Attributes["Name"].Value;

Edit: As pointed out in the comments, this will throw an exception if the attribute doesn't exist. The safe way is:

var attribute = node.Attributes["Name"];
if (attribute != null){
    string employeeName = attribute.Value;
    // Process the value here
}

To expand Konamiman's solution (including all relevant null checks), this is what I've been doing:

if (node.Attributes != null)
{
   var nameAttribute = node.Attributes["Name"];
   if (nameAttribute != null) 
      return nameAttribute.Value;

   throw new InvalidOperationException("Node 'Name' not found.");
}

you can loop through all attributes like you do with nodes

foreach (XmlNode item in node.ChildNodes)
{ 
    // node stuff...

    foreach (XmlAttribute att in item.Attributes)
    {
        // attribute stuff
    }
}

If you use chldNode as XmlElement instead of XmlNode, you can use

var attributeValue = chldNode.GetAttribute("Name");

The return value will just be an empty string, in case the attribute name does not exist.

So your loop could look like this:

XmlDocument document = new XmlDocument();
var nodes = document.SelectNodes("//Node/N0de/node");

foreach (XmlElement node in nodes)
{
    var attributeValue = node.GetAttribute("Name");
}

This will select all nodes <node> surrounded by <Node><N0de></N0de><Node> tags and subsequently loop through them and read the attribute "Name".


if all you need is the names, use xpath instead. No need to do the iteration yourself and check for null.

string xml = @"
<root>
    <Employee name=""an"" />
    <Employee name=""nobyd"" />
    <Employee/>
</root>
";

var doc = new XmlDocument();

//doc.Load(path);
doc.LoadXml(xml);

var names = doc.SelectNodes("//Employee/@name");

Use

item.Attributes["Name"].Value;

to get the value.


You can also use this;

string employeeName = chldNode.Attributes().ElementAt(0).Name