ASP.Net MVC Routing/Using Dynamic Actions

Question

Ok so I am trying to build a controller that has the following action methods

public ActionResult ExecuteStep_1a
public ActionResult ExecuteStep_1b
public ActionResult ExecuteStep_2

Etc...

Is there a way to define a route that uses a get parameter concatenated to the action name? So for instance the URL would be /step/ExecuteStep_1a. I tried defining a route with URL equal to:

{controller}/{action}_{number}

with no success. I tried a few other permutations again with no results. If someone could point me in the right direction I'd appreciate it. Oh I set action equal to ExecuteResult_ with the default if that adds to my explanation any.

David Horák · Accepted Answer · 2013-08-20 08:20:04Z

1

You can use root Action and them use reflection like that:

{controller}/{action}/{step}

public ActionResult ExecuteStep(string step){
   try {
      Type thisType = this.GetType();
      MethodInfo theMethod = thisType.GetMethod("ExecuteStep_" + step);
      return theMethod.Invoke(this, null);
   }
   catch {}
}

But there is some speed limitation, if you using Reflection.

answered Aug 20, 2013 at 8:20

David Horák

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2 Comments

Shawn Over a year ago

I was trying to avoid having a "root" action. Ultimately, I ended up going with a unique routing record for each action I wanted to map. So I have a url defined as {controller}/1a, {controller}/1b, etc. The defaults put in the controller and corresponding action name, in this case Step and ExecuteStep_1a, ExecuteStep_1b, etc. I decided even if I could use reflection to pull this off, the benefits aren't worth the effort and additional processing.

David Horák Over a year ago

@Shawn Yeah, this will be smarter choice, if you don't have too many actions (steps), the reflection is there only one of the way how to achieve your needs.

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