Convert string to Boolean, throws an exception if not compatible in CSharp

using System;/*ww w.  j a v a2 s. c  o  m*/

public class Example
{
   public static void Main()
   {
      string[] values = { "True", "False", "true", "false", " true ", "0", "1", "-1", "string" };
      foreach (var value in values) {
         try {
            bool flag = Boolean.Parse(value);
            Console.WriteLine("'{0}' --> {1}", value, flag);
         }
         catch (ArgumentException) {
            Console.WriteLine("Cannot parse a null string.");
         }   
         catch (FormatException) {
            Console.WriteLine("Cannot parse '{0}'.", value);
         }         
      }                                     
   }
}