Remove empty XML tags

Question

I am looking for a good approach that can remove empty tags from XML efficiently. What do you recommend? Regex? XDocument? XmlTextReader?

For example,

Answer 1

Loading your original into an XDocument and using the following code gives your desired output:

var document = XDocument.Parse(original);
document.Descendants()
        .Where(e => e.IsEmpty || String.IsNullOrWhiteSpace(e.Value))
        .Remove();