Select Xml Node using Linq to XML

Question

my Xml file :

Answer 1

Your problem is that Descendents and Where return an IEnumerable not a single XElement which is what you're after. You can fix this like this:

XElement toEdit = doc.Descendants("ArrayOfCustomer")
                     .Descendants("Customer")
                     .Where(x => Guid.Parse(x.Descendants("CustomerId").Single().Value) == customer.CustomerId)
                     .FirstOrDefault();