title: Truncating a version number C#
body: <p>If I have a version number that has 5 digits such as "1.0.420.50.0", how could I truncate this number (and other version numbers like "1.0.512.500.0") to only 4 digits? "1.0.420.50.0" --> "1.0.420.50"</p>
  
  <p>I would prefer to use an array but any other methods work too!
  Thanks for any advice in advance!</p>