Search for an element by case insensitive attribute with xdocument

Question

I have this code for parsing some xml which is working well:

string text = File.ReadAllText("myfile.xml");

XDocument doc = XDocument.Parse(text); //or XDocument.Load(path)

// LINQ to XML query  
XElement alternateSpkgRootElement =
    (from el in doc.Descendants()
    where (string)el.Attribute("name") == "myname" || (string)el.Attribute("Name") == "myname"
    select el).FirstOrDefault();

The problem is my XML can have attributes with capital letters at the start, e.g. instead of el.Attribute("name") it could be el.Attribute("Name").

Is there a nice way to search for these without doing:

where (string)el.Attribute("name") == "myname" || (string)el.Attribute("Name") == "myname"

Edit

Here is some sample XML to show why previously suggested questions do not answer my problem:

user_1320845 · Answer

You could add an extension method:

public static class XElementExtensions
{
    public static XAttribute AttributeIgnoreCase(this XElement element, string localName)
    {
        return element.Attributes()
            .FirstOrDefault(x => 
                string.Equals(x.Name.LocalName, localName, StringComparison.OrdinalIgnoreCase));
    }
}

And use like this:

where (string)el.AttributeIgnoreCase("name") == "myname"

Search for an element by case insensitive attribute with xdocument

1 Answers