Asp.net MVC Routing -- MVC( Model View Controller)

The ASP.NET Routing module is responsible for mapping incoming browser requests to particular MVC controller actions. 

Asp.net Routing is set up in two places

•     Web.config
•      Global.asax 

Web.Config file

    Asp.net routing is enabled in your Web.Config file there are 4 sections in the configuration file that is relevant to routing      

•  System.web.httpModules Section
•  System.web.httphandlers section
•  System.webserver.modules section
•  System.webserver.handlers section 

Note: Without this section routing will not work

Global.asax:

  This is a file which contains event handlers for application life cycle events

   For a route table is created in the application’s global.asax file, which is created during the applications start event

Exploring Global.asax

   

In the application Application_Start function we can see a call to Register Routes 
You can see a default route map in the figure.
The Route name could be anything unique.
There is a predefined route map which maps to Controller/Action/id
when you add additional routes kindly remember that the order is important, they needed to be added on top of the default route. 

We will add a New Route Search

    

The Above Route Search/ID maps to Controller = Home/ Action Method = Search / ID

Running the Application