.NET Framework Standard Library Annotated Reference, Volume 1: Base Class Library and Extended Numerics Library

Example

using System;

namespace Samples
{
  class ArgumentNullExceptionSample
  {
    public static void Main()
    {
      String[] strings = null;
      String separator  = " ";
      try
      {
        String s = String.Join(separator, strings);
      }
      catch(ArgumentNullException e)
      {
        Console.WriteLine("Exception: {0}", e);
      }
    }
  }
}

The output is

Exception: System.ArgumentNullException: Value cannot be null.
Parameter name: value
   at System.String.Join(String separator, String[] value)
   at Samples.ArgumentNullExceptionSample.Main() in C:\Books\BCL\Samples\System\
ArgumentNullException\ArgumentNullException.cs:line 13