LINQ to XML select multiple elements?

Question

How do I select multiple elements (with different names) in a LINQ to XML query?

I have a query like this:

var elems = from descendant in doc.Descendants("foo")
                            select descendant;

But I want to select both foo and bar, sort of like this:

var elems = from descendant in doc.Descendants("foo" || "bar")
                            select descendant;

But that is just to illustrate what I want to do, I know this is not correct syntax. I don't know how it should be done with LINQ to XML, so what is the proper way to do it?

Answer 1

You can only pass in one XName into those methods. Just leave them out there and do normal LINQ filtering.

var elems = doc.Descendants()
               .Where(desc => desc.Name == "foo" || desc.Name == "bar");

Using an XPath is another way.

var elems = doc.XPathSelectElements("//foo|//bar");