Regex to get page number from the url

Question

I am currently using this regex to get the page number from the url:

 @"\/(\d+)$";

Which worked fine for urls like:

/some_category/2
/some_category2/323

My urls now have some additional querystring values (optionally), so the current regex is not working for these cases.

So now I need a regex to support:

/some_category/2
/some_category2/323
/some_category2/323?a=1&b=2
/some_category2/323?&c=123&a=1&b=2

Any help would be appreciated.

I am using a route with wildcards so I can use the built in asp.net mvc for this.

Answer 1

It should be /(\d+)

No need to escape the front slash. The $ character was an end-of-line character which wasn't working because the digits occurred before the end of the line

Answer 2

Try this one. Works in JavaScript.

@"/(\d+)\??.*$";

Answer 3

If you're using MVC, why do you need a Regex for the URL at all? Can't you simply get the number in your ActionResult?

Assuming your Route is

// Default Catch All MapRoute
routes.MapRoute("Default", "{controller}/{action}/{id}", new {
    controller = "Home",
    action = "Index",
    id = UrlParameter.Optional
})

Then just use

public ActionResult myAction(int id){
    // get your "number" by using the "id" variable
}