Convert TimeSpan to string using the specified format in CSharp

using System;//from   w  w w.ja v a  2 s . c  o m

public class Class1
{
   public static void Main()
   {
      TimeSpan[] spans = { TimeSpan.Zero, new TimeSpan(-14, 0, 0, 0, 0), 
                           new TimeSpan(1, 2, 3), 
                           new TimeSpan(1, 0, 0, 0, 250), 
                           new TimeSpan(99, 23, 59, 59, 999),
                           new TimeSpan(3, 0, 0), 
                           new TimeSpan(1, 0, 1, 0, 25) };
      string[] fmts = { "c", "g", "G", @"hh\:mm\:ss", "%m' min.'" };
      foreach (TimeSpan span in spans)
      {
         foreach (string fmt in fmts)
            Console.WriteLine("{0}: {1}", fmt, span.ToString(fmt));
      }
   }
}