Iterate through all unknown XML attributes

Question

I want to iterate through all attributes from all given tags in an XML file with C# like in this example.

<TAG1 Attribute1="1234" Attribute2="1234" Attribute3="1234">
      <TAG2 xpq="123" abc="000" lkj="123"/>
</TAG1>

The XML is very long and the tags and attribute naming can change. So I must find a way to iterate through them with unknown naming. I have tested it with

XmlTextReader reader = new XmlTextReader("C:\\PathToXml\File.xml");
var optionTitle = reader.Name;                           
var AttributeName = reader.LocalName;
var AttributeValue = reader.GetAttribute(AttributeName);
var itemValue = new ListViewItem(new[] { optionTitle, AttributeName, AttributeValue });
listView1.Items.Add(itemValue);

But I only get the tag names and nothing else...

Does anyone have an idea for me?

Duplicate shows XmlReader solution or if you are fine with LINQ-to-XML - duplicate of http://stackoverflow.com/questions/6253565/loop-through-all-the-attributes-of-a-node-using-xdocument. — Alexei Levenkov, Jan 05 '17 at 16:26

score 1 · Answer 1 · answered Jan 05 '17 at 16:15

1

I prefer using Linq2Xml

var xDoc = XDocument.Load(filename);
foreach(var attr in xDoc.Descendants("TAG1").First().Attributes())
{
    Console.WriteLine(attr.Name + " " + attr.Value);
}

answered Jan 05 '17 at 16:15

L.B

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Matteo Marciano - MSCP · Answer 2 · 2017-01-05T16:21:56.073

0

You should use the XDocument class, which provides a much simpler access to XML documents.

var doc = XDocument.Load("C:\\PathToXml\File.xml");
foreach(var el in doc.Descendants())
   foreach(var attr in el.Attributes())
   {
        var itemValue = new ListViewItem(new[] { el.TagName, attr.Name, attr.Value });
        listView1.Items.Add(itemValue);
   }

edited Jan 05 '17 at 16:21

answered Jan 05 '17 at 16:16

Matteo Marciano - MSCP

419
2
5

score 0 · Answer 3 · answered Jan 05 '17 at 16:16

You should use XDocument to load your xml file. Then get all the attributes by using XElement.Attributes like this

var document = XDocument.Load("C:\\PathToXml\File.xml");
foreach (var attribute in document.Root.Attributes)
{
    //process the attribute
    //attribute.Name
    //attribute.Value
}

Iterate through all unknown XML attributes

3 Answers3