C# Linq to XML check if element exists

Question

I have an XML document as follows:

 
   \"+447528349828\" 
   \"09/06/24 
          


        

Answer 1

You could apply an XSL document that translates the data by looping through the SMS nodes and excluding any that has a duplicate Number/text() value

Check would be something like:

.....include a copy of node......