This document provides an overview of URL routing in ASP.NET MVC, including how URLs are matched to actions, how to register routes, using catch-all routes, static and dynamic routes, adding route constraints with regular expressions or custom constraints, setting the route namespace and collection order, handling route errors, and references. Key points covered include mapping URL patterns like http://example.com/Users/Edit/5 to the UsersController Edit action, registering routes in the RouteConfig class, and applying constraints to routes.

1. Jason
ASP.NET MVC ROUTE

2. URL Routing

3. URLs
URL
Action
http://example.com/Users/Edit/5
UsersController.Edit(5)
http://example.com/Users/Edit
UsersController.Edit()
http://example.com/Users
UsersController.Index()
http://example.com
HomeController.Index()

4. Register Routes

RouteConfig.cs

Global.asax.cs

5. Catch-all

Example
 /example.axd/d1/d2/d3/d4
 {resource}.axd/{pathInfo}
 /example.axd/d1
 {resource}.axd/{*pathInfo}
 /example.axd/d1/d2/d3/d4

6. Static Routs

Example
 http://example.com/privacy

7. Dynamic Routs

Example
 http://example.com/products/10/buy

8. Route Constraints - Regex

Example
 http://example.com/basket
 http://example.com/checkout

9. Route Constraints - Regex

Example
 http://example.com/Product/3

10. Route Constraints - IRouteConstraint

Example
 http://example.com/Admin/Log

11. Route Constraints - IRouteConstraint

Custom Route Constraint

12. Route Namespace Parameters

13. Routes Collection

The order in which you added them to the Routes collection

http://server/application/products/show/bikes

Route 1 is set to {controller}/{action}/{id}

Route 2 is set to products/show/{id}

14. Route Error Handle

NotFoundResult.cs

ErrorController.cs

15. Route Error Handle

16. Q&A

17. REFERENCE

MSDN
 http://msdn.microsoft.com/zh-
tw/library/cc668201(v=vs.100).aspx#how_urls_ar
e_matched_to_routes