Attribute routes can even be combined with inheritance. This can be powerful combined with token substitute. Token substitute also applies to route names defined by attribute routes.
We may constrain the routes by specifying the Common Expression for controller, action technique etc.
The ControllerBase and Controller foundation classes supply usefulness strategies for motion outcomes that reference One more motion. Just one usual usage is always to redirect following accepting user input:
Attribute routing works by using a set of attributes to map actions straight to route templates. The next code is typical for a Relaxation API which is Employed in the next sample:
Including routes working with MapControllerRoute, MapDefaultControllerRoute, and MapAreaControllerRoute instantly assign an buy price to their endpoints depending on the get They are really invoked. Matches from a route that appears previously have a higher precedence. Typical routing is order-dependent.
You can even configure a customized route using the MapRoute extension technique. You have to provide at the very least two parameters in MapRoute, route identify, and URL sample. The Defaults parameter is optional.
That means Route Constraints absolutely are a way to restrict or filter the values that a route parameter normally takes. These constraints support ensure that incoming requests match the expected format or knowledge form prior to a controller motion procedures them.
In general, routes with spots need to be positioned earlier as They are additional distinct than routes with no a place. Focused regular routes with catch-all route parameters like *article will make a route far too greedy, indicating that it matches URLs you meant to be matched by other routes. Place the greedy routes later in the route desk to stop greedy matches.
As we could see, We have now outlined a new route that expects a category parameter. Now when we provide Electronics like a parameter, we receive a nicely filtered checklist
MVC framework evaluates Each and every route in sequence. It starts with the main configured route, and if incoming URL isn't going to satisfy the URL pattern of the route, then it's going to Examine the second route and so forth.
This area discusses how routing interacts with regions. See Parts for facts regarding how regions are utilised with views.
If routing won't be able to choose a very best applicant, an AmbiguousMatchException is thrown, listing the a number of matched endpoints.
Simplicity: It cuts down the need to outline routes explicitly For each and every action system or controller; rather, it works by using default conventions.
Committed conventional routes depend upon a Distinctive routing in asp.net mvc behavior of default values that do not have a corresponding route parameter that stops the route from remaining much too greedy with URL era. In this case the default values are controller = Weblog, motion = Posting , and neither controller nor action seems for a route parameter.