Routing in Asp.Net MVC

In this article you will come to know about Asp.NET MVC Routing.

What is Routing ?

Why Routing required ?

WebForm vs MVC

Advantage of Routing

How to configure Routing?

How Routing Work?

What is Routing?

In general sense Routing meaning is way. Asp.net MVC Routing doing the same thing it show the way to a request. Basically routing is used for handling HTTP request and search match action method then execute the same.

It constructs outgoing URLs that correspond to controller actions.

Routing means which map request with Controller’s Action Method.

Routing is match incoming request, and we can call Routing is pattern matching which manages the incoming request. It match request with Route Table.

Why Routing Required or Important?

As per MVC, Model View Controller are main independent components.

These three components work individually.

Any incoming request handle by Controller. MVC not directly mapped with physically UI output file. That is mapped by controller at run time and route table.

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(Image taken from https://msdn.microsoft.com/enus/library/dd381412(v=vs.108).aspx)

For more information about Route Table and Route Collection

http://stackoverflow.com/questions/16691566/whats-the-difference-between-routecollection-and-route-table

https://msdn.microsoft.com/en-us/library/system.web.routing.routetable(v=vs.110).aspx

  

  

WebForm vs MVC:

In WebForm technology url directly attached physical file.

Example: www.myshop.com/plastic/index.aspx

In MVC url not directly attached with any physical file its attached with Action Method of Controller.

Example: www.myshop.com/plastic/index

As you can see in above URL:

www.myshop.com  : Domain Name

plastic : Controller Name

index :  Action Method Name

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www.myshop.com/bottle/plastic/100

As you can see in above URL:

www.myshop.com  : Domain Name

bottle : Controller Name

plastic :  Action Method Name

100 : 100 is a id or Paramter passed to action method

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Advantages of Routing:

1. Routing is very friendly & helpful for SEO (search engine optimization).

2. All URL not directly map with physical file.

3. More powerful securities than WebForm.

How to configure Routing?

Configure / setting routing is very simple. As you see in your solution explorer there is App_Start folder, in this folder you can see there is RouteConfig.cs file.

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  public static void RegisterRoutes(RouteCollection routes)

        {

            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            routes.MapRoute(

                name: "Default",

                url: "{controller}/{action}/{id}",

                defaults: new { controller =”<Your Default Controller Name>“, action = "<Your Default Action Name>", id = UrlParameter.Optional }

            );

        }

NOTE: What is App_Start folder in Asp.Net MVC?

 App_Start folder has been introduced in MVC4. This folder having

 all setting related files as you can see in image.

1. BundleConfig.cs

2. FilterConfig.cs

3. IdentityConfig.cs

4. RouteConfig.cs

5. Start.Auth.cs

How Routing Work?

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