Delete an inner node but not the value in xml with XDocument library in C# .NET

Question

I have the following XML file:

  
    
Add<         


        

Answer 1

Remark: Your XML looks like HTML-Code. HTML is not always a valid XML (see the BR-Tag:
). That might cause exceptions - so you either should be very sure that your HTML is a valid XML (then you can use XDocument) or you should use Regex.Replace()

Regex spanRegex = new Regex(@"]*>([\s\S]*?)]*>");
spanRegex.Replace(input, match => { return match.Groups[1].ToString(); });

(see http://regexr.com/3cjuq)