Default action in MVC4 - asp.net-mvc

Question

I have a controller called Entry that has three ActionResults: View, New, and Edit.
The View action accepts a string parameter representing a specific Entry object.
I'm trying to figure out how to not show the word "View" in the URL. In other words, I'd like it to act like a default action.
Ideally I would like the URLs read as:
/entry/2DxyJR for a given entry
/entry/new to create a new entry
/entry/edit/2DxyJR to edit a given entry
I believe this can be accomplished with a custom route but am unsure how to actually do it. This route works for hiding "View", however /new and /edit don't work.
routes.MapRoute(
name: "Entry",
url: "entry/{id}",
defaults: new { controller = "Entry", action = "View", id = UrlParameter.Optional }
);
Sorry for the extreme noobishness of this, but I'm still trying to wrap my head around how routing works.

Answer 1

You'll need to be sure you put the more specific ones on top, so the entry/id will have to be last, because it appears you have string based id's.
This will match the most explicit (new) first, then if there's edit in the url, then if not fall through to the view action.
routes.MapRoute(
name: "Entry",
url: "entry/new",
defaults: new { controller = "Entry", action = "New" }
);
routes.MapRoute(
name: "Entry",
url: "entry/edit/{id}",
defaults: new { controller = "Entry", action = "Edit", id = UrlParameter.Optional }
);
routes.MapRoute(
name: "Entry",
url: "entry/{id}",
defaults: new { controller = "Entry", action = "View", id = UrlParameter.Optional }
);

Answer 2

I think a route constraint implementation that passes all strings behind "entry/" but excepts the words like view, edit and new, so the "Default" route can handle the. Something like:
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapRoute(
"EntryView",
"Entry/{identifier}",
new { controller = "Entry", action = "View" },
new { identifier = new NotEqual(new string[]{"View", "Edit" , "New"}) }
);
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults
);
}
Here is the NotEqual class:
public class NotEqual : IRouteConstraint
{
private string[] _match;
public NotEqual(string[] match)
{
_match = match;
}
public bool Match(HttpContextBase httpContext, Route route, string parameterName, RouteValueDictionary values, RouteDirection routeDirection)
{
for (int i = 0; i < _match.Length; i++)
{
if (String.Compare(values[parameterName].ToString(), _match[i], true) == 0)
{
return false;
}
}
return true;
}
}
I tested it and it worked, I found it as I needed it on http://stephenwalther.com/archive/2008/08/07/asp-net-mvc-tip-30-create-custom-route-constraints.aspx