//standard routing
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}",
new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
//the custom route I added
routes.Add(
new Route("Fish/Image",
new ImageHandlerRouteHandler()
)
);
I thought this would use my ImageHandlerRouteHandler but all I get at Fish/Image is a 404.
Add the route before the default route.
routes.Add(
new Route("Fish/Image",
new ImageHandlerRouteHandler()
)
);
//standard routing
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}",
new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
The request is mapped to the first matching route in routes table. Since default route have no restrictions, it gets called before your custom route.
When you have the Fish/Image route before the default route, the problem you will have in MVC building links is that the Fish/Image route appears to satisfy ALL requests. In order to have this route work, change it as follows:
routes.Add(
"FishImage",
new Route(
"{controller}/Image",
new RouteValueDictionary(new { controller = "Fish" }),
new RouteValueDictionary(new { controller = #"^(?!fish).+" }),
null,
new ImageHandlerRouteHandler()
)
);
This changes the route, so that on the link building side, your other links will fail this route. Currently, MVC sees that it can build any link to match this route, so it does. With the constrained route, MVC will now see that other links will fail this route.
The order that routes appear are important. Add your route first and left the Default as a fall back.
Related
I have added WCF service to MVC 5 application, and created a route for it:
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.Add(new ServiceRoute("Service1.svc", new ServiceHostFactory(), typeof(Service1)));
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
}
The problem is that all my links leads to the Service1.svc route now. #Html.ActionLink("Passport Maker", "Index", "Home", new { area = "" }, new { #class = "navbar-brand" }) become http://localhost:50099/Service1.svc?action=Index&controller=Home and other links change in the same way.
If I add ServiceRoute after "Default" route, the links work correctly but the service is unavailable.
Why it happens (there is no "Service1" in the links, why they select the service route then?) and how to fix it?
The solution:
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional },
constraints: new { controller = "^(?!Service1.svc).*" }
);
routes.Add(new ServiceRoute("Service1.svc", new ServiceHostFactory(), typeof(Service1)));
Explanations for those who may encounter a similar problem: the reason of the problem was that Html.ActionLink uses the first matching route to generate the link. And my service route was the first and was matching, because a route does not require to include {controller} and {action} parameters to be matched (as I thought initially).
The solution is to put the default route first, so it is used by Html.ActionLink. And to still be able to use the service route, need to exclude it from the the first route using constraints. The regex ^(?!Service1.svc).* matches only those controller names that don't start from "Service1.svc".
I have a controller called Dashboard with 3 actions: Summary, Details, and Status, none of which take an ID or any other parameters. I want the URL /Dashboard to route to the Summary action of the Dashboard controller, as /Dashboard/Summary does, but I can't figure out the correct way to add the route. In Global.asax.cs, I have the following:
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new {controller = "Home", action = "Index", id = UrlParameter.Optional} // Parameter defaults
);
routes.MapRoute(
"/Dashboard",
"Dashboard",
new { controller = "Dashboard", action = "Summary" }
);
For the second part, I've also tried:
routes.MapRoute(
"/Dashboard",
"{controller}",
new { controller = "Dashboard", action = "Summary" }
);
and
routes.MapRoute(
"/Dashboard",
"{controller}",
new { action = "Summary" }
);
but I always get a 404 when trying to access /Dashboard. I'm pretty sure I'm missing something about the format for the parameters to MapRoute, but I don't know what it is...
Move your Dashboard route in front of the Default route:
routes.MapRoute(
"Dashboard",
"Dashboard/{action}",
new { controller = "Dashboard", action = "Summary" }
);
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new {controller = "Home", action = "Index", id = UrlParameter.Optional} // Parameter defaults
);
The order of routes changes everything. Also, notice the changes I made to the Dashboard route. The first parameter is the name of the route. Second is the URL, which match URLs that start with Dashboard, and allows for other actions in your Dashboard controller. As you can see, it will default to the Summary action.
You need to declare the "Default" catch-all route last.
This set default Action for any Controller asp.net:
routes.MapRoute("Dashboard", "{controller}/{action}",
defaults: new { controller = "Dashboard", action = "Summary" });
I have a web site with something like this:
http://website/Controller/Action/Id
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new { controller = "Controller", action = "Action", id = UrlParameter.Optional } // Parameter defaults
);
Is there any way to route to the same action if the url changes to be
http://website/Action/Id
I was trying to change global.asax but nothing is working.
Based on how I'm reading your question, you're saying that you may only ever have one controller and want to be able to route all actions to that single controller?
If I'm reading it correctly, you should be able to do something similar to this:
routes.MapRoute(
"Default", // Route name
"{action}/{id}", // URL with parameters
new { controller = "Controller", action = "Action", id = UrlParameter.Optional } // Parameter defaults
);
Pretty basic question here. How come I get a 404 error when I try to view
/Vendors/123
But I can see the page if I go to
/Vendors/Index/123
Is there any way for me to make it work the first way? I'm just using the default routes being registered in Global.asax.
Because that's how the default route is defined. If you don't want to specify an actionname you could modify it like this:
routes.MapRoute(
"Default",
"{controller}/{id}",
new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
This being said you probably shouldn't be doing this because now in your route you do not have the possibility to specify the action name that you wish to invoke on a given controller which means that you can only have a single action on each controller and that action would be Index. On the other hand if you wanted to do this on some specific controller you could still preserve the default route and add another one:
routes.MapRoute(
"Vendors",
"vendors/{id}",
new { controller = "Vendors", action = "Index", id = UrlParameter.Optional }
);
routes.MapRoute(
"Default",
"{controller}/{action}/{id}",
new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
Because in your basic routing {id} expects after action name, but you are trying to put it after controller name.
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults
);
Change your rout to accept {id} just after {controller}. Just like #Darin described.
Could someone show me how to use the MapRoute method? I have tried creating my own routes, but it's not working. What i want to accomplish is a route that routes "http://servername/home/default.aspx" into controller "Home" and action "Default". Also, would it be possible to say that if the user is browsing the default.aspx "file", it would actually point to the "Index" action?
I have tried reading the MSDN references and googling, but it didn't make me any wiser.
Probably too late to help the developer who raised the question but may help someone else. New to MVC but what I found is the map routes seem to be processed in the order they are added. I had a similar problem, my specific route was not working until I started adding the default route as the last route.
If the default map route is added before your custom one and your custom URL matches the structure defined by the default map route you will never reach your custom route.
The route you want to configure the first part of your question is:
routes.MapRoute(
"",
"home/default.aspx",
new { controller = "Home", action = "Default" }
);
Assuming you wish to 'browse' default.aspx with some sort of parameter you can do something like:
routes.MapRoute(
"",
"home/default.aspx/{param}",
new { controller = "Home", action = "Default", param = UrlParameter.Optional }
);
And you would then need to create your Default action to accept string param.
You also have to make sure the parameter name is the same as the action's parameter name.
Example:
routes.MapRoute(
name: "MyName",
url: "{controller}/{action}/{myParam}",
defaults: new { controller = "MyController", action = "MyAction", id = UrlParameter.Optional }
);
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
MyController:
public ActionResult MyAction(string myParam = "")
{
}