Didn\'t find how to do that. What I found was more or less on the lines of this (http://blog.stevex.net/string-formatting-in-csharp/):
There really isn’t any formatt
Why not just use Substr to limit the length of your string?
String s = "abcdefghijklmnopqrstuvwxyz"; String.Format("Character limited: {0}", s.Substr(0, 10));