Remove Parameters

When modifying code, you may notice that a parameter is no longer being used. If it isn't necessary to the operation of the method, there is no reason to keep it. You should implement a Remove Parameters refactoring to eliminate the unused parameter.

You can implement the Remove Parameters method by right-clicking the parameter, selecting Refactor, and selecting Remove Parameter. Given the code in Listing 11, you'll see a Reorder Parameters dialog similar to the one shown in Figure 7.

Listing 11. When a method has unused parameters, you should implement a Remove Parameters refactoring to delete the parameters that are not used.

        public void PerformCalculation()
        {
            Console.WriteLine("result = " + PerformXYZCalculation(5));
        }

        private int PerformXYZCalculation(int p)
        {
            return 3 * 4;
        }

www.refactoring.com.

Additionally, it is important that you continue to perform unit tests while you refactor. Don't allow the automatic refactoring support to provide a false sense of security. If you aren't performing unit tests, now is the time to start. I use NUnit, which is a free open source graphical unit testing application that you can find at www.nunit.org.