C# Methods, Part 2 - Variable Length Parameters

(Page 5 of 5 )

The best example to explain a method that takes a variable length of parameters at runtime is the Main method. Look at the following code:

using System;
namespace MyCompany
{
  public class MethodTest
  {

    static void Main(params string[] names)
    {
      foreach(string name in names)
      {
        Console.WriteLine(name);
      }
      Console.ReadLine();
    }
  }
}

Run this code as you see in the next Console Window and you will get the result you see:

Note that we didn't use a parameter list with the Main method, but we used the params keyword followed by an array of string objects. When you execute a command line program, you can pass a variable list of parameters to the application for processing. Using the params keyword followed by an array, you can pass a variable list of parameters. The application does nothing more than iterate through the array and print the names.

DISCLAIMER: The content provided in this article is not warranted or guaranteed by Developer Shed, Inc. The content provided is intended for entertainment and/or educational purposes in order to introduce to the reader key ideas, concepts, and/or product reviews. As such it is incumbent upon the reader to employ real-world tactics for security and implementation of best practices. We are not liable for any negative consequences that may result from implementing any information covered in our articles or tutorials. If this is a hardware review, it is not recommended to open and/or modify your hardware.

Comments On: C# Methods, Part 2

>>> Be the FIRST to comment on this article!