How do I accept an array as an ASP.NET MVC controller action parameter?

Question

I have an ASP.net MVC controller called Designs that has an action with the following signature:

public ActionResult Multiple(int[] ids)
         


        

Answer 1

To extend on Darin Dimitrov's answer, something you can get away with is accepting a simple string in your URL parameter and converting it to an array yourself:

public ActionResult Multiple(string ids){
  int[] idsArray = ids.Split(',').Select(int.Parse).ToArray();
  /* ...process results... */
}

If you get a parse error while doing this (because someone passed you a malformed array), you can cause your exception handler to return a 400 Bad Request error instead of the default, more unfriendly 404 Not Found error that MVC returns when an endpoint is not found.