ASP.NET-MVC – MVC handler, optional parameters for unknown quantity

routes.MapRoute("Category", "category/{*keywords}", new {controller = "Category", action = "Search", keywords = "" });

public ActionResult Search(string keywords)
{
 // Now you have to split the keywords parameter with'/' as delimiter.
}

I am using MVC routing, which will get an unknown number of parameters at the end of the URL. Something like this:

domain.com/ category/keyword1/keyword2/…/keywordN

These keywords are the values ​​of the filter that we must match.

So far, the only way I can think of is UGLY… Just create an ActionResult with more parameters than I might need:

ActionResult CategoryPage(string urlValue1, string urlValue2, string urlValue3, etc…)
{
}

This doesn’t feel right. I think I can change They were stuffed into a query string, but then I lost the sexy MVC URL, right? Is there a better way to declare a handler method so that it handles an unknown number of optional parameters?

Routing must be connected on Application Start, which should not be that difficult. The maximum number of keywords can be easily determined from the database, so there is no big problem.

Thank you!

You can use catch-all parameters like this:

routes.MapRoute( "Category", "category/{*keywords}", new {controller = "Category", action = "Search", keywords = "" });

Then, your search operation method will There is a parameter:

public ActionResult Search(string keywords)
{
 // Now you have to split the keywords parameter with'/' as delimiter .
}

The following is a list of possible URLs, which contain the value of the keywords parameter:

http://www.example.com/category(keyword: ” “)
http://www.example.com/category/foo(keyword: “foo”)
http://www.example.com/category/foo/bar(keyword: “foo /bar”)
http://www.example.com/category/foo/bar/zap(keyword: “foo / bar / zap”)