MVC - C# -Passing query string (Optional & Default Parameters)

• Passing regions as optional parameter

     namespace MvcVersionFinder.Controllers


     {
        public class HomeController : Controller


         {
           public string Index(string id, int? regions)

           {

           return id + "Test" + regions.ToString ();

           }
        }
     }

Usage - http://localhost:81/MvcVersionFinder/?id=2&&regions=4    2Test4

        http://localhost:81/MvcVersionFinder/?id=2               2Test

• Passing regions with Default value

      public string Index(string id, int regions =2)
        {
             return id + "Test" + regions.ToString();
         }
Usage - http://localhost:81/MvcVersionFinder/?id=2     2Test2
         http://localhost:81/MvcVersionFinder/?id=2&&regions=4    2Test4