问题
A new property to RouteCollection was added with .NET Framework 4.5:
http://msdn.microsoft.com/en-us/library/system.web.routing.routecollection.lowercaseurls.aspx
This works great, until you add an Area to your project. All Urls are propercase again.
Any ideas why this happens? It's simple to reproduce:
- Create new MVC 4 Internet Application (.NET 4.5)
- Start RouteConfig.RegisterRoutes function with: routes.LowercaseUrls = true;
- Run the project and you'll see all generated Urls are now lowercase.
- Add an Area to the project.
- Run the project again and you'll see all Urls are propercase again!
It breaks at the point where context.MapRoute gets executed in AreaRegistration.RegisterArea. When I comment that out, I got lowercase Urls. Uncomment it, and the propercase Urls are back.
It seems to me like Microsoft knows this is buggy and doesn't advertise this new feature, as it's a really great feature but it is only mentioned in the MSDN docs.
回答1:
This indeed appears to be a bug in the interaction between ASP.NET MVC and ASP.NET 4.5's new LowercaseUrls feature in routing.
I have logged a bug for MVC here: http://aspnetwebstack.codeplex.com/workitem/685
Thank you for reporting this!
As Cristi Pufu mentions, it appears that others have written some NuGet packages to handle similar scenarios:
- http://nuget.org/packages/LowercaseRoutesMVC - adds support for lowercase URLs
- http://nuget.org/packages/AttributeRouting - adds super fancy support for tons of neat feature, including lowercase URLs (see https://github.com/mccalltd/AttributeRouting/wiki/Generating-Lowercase-Outbound-URLs)
EDIT 4/23/2013 - We have recently accepted a pull request with a fix for this issue for ASP.NET MVC 5.
来源：https://stackoverflow.com/questions/13271048/net-4-5-mvc-routecollection-lowercaseurls-breaks-when-using-area