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c#asp.net-mvcasp.net-mvc-4model-view-controller
Shad
Shad

Reputation: 1219

What is the role of Controller in MVC model?

I have gone through some answers here and and some articles on MVC but I still have a confusion regarding the role of a Controller in a MVC application.

I read in a book that the Model is self-contained and functions independent of View and Controller. And that the Model contains the business logic and data access codes. Source

Also in the best answer here What goes into the "Controller" in "MVC"?

But the other answers around here say that it is the Controller that represent the business logic

Where can I find a dead-simple explanation of MVC?

So which is the correct answer?

Upvotes: 4

Views: 24199

Answers (4)

Aditya Agarwal
Aditya Agarwal

Reputation: 21

Controller acts as a mediator between the View and the Model class. It is used just to remove the dependency between model and view classes. Kindly refer to this link.. https://www.tutorialspoint.com/mvc_framework/mvc_framework_controllers.html

Upvotes: 0

Stephen Graham
Stephen Graham

Reputation: 439

Wikipedia states very simply: The controller, accepts input and converts it to commands for the model or view.

https://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller

Upvotes: 6

Irf92
Irf92

Reputation: 369

This answer is correct

Model: This component represents the data and the business logic of the application.The model in the MVC framework is not related to the presentation of the application.The model component focus on keeping track of the state of the application.It also defines business rules for data, means how the data can be changed and manipulated.

View: The view provides the user interface (UI) for the model. The main work (function) of the view represents the information in user understandable format. It uses UI Components such as HTML,CSS,Jquery etc.

Controller: Controller act as a mediator between view and model. it is responsible to control the data transmission between the model and the view. It maps the user action into model updates.The controller layer is helpful to select the most appropriate view and delivers it to the user.

Actually, The Controllers are mediater between the view and model. they don't define the business logic. Models are responsible for business logic.

Upvotes: 1

Manikandan Sekar
Manikandan Sekar

Reputation: 83

The ASP.NET MVC framework maps URLs to classes that are referred to as controllers. Controllers process incoming requests, handle user input and interactions, and execute appropriate application logic. A controller class typically calls a separate view component to generate the HTML markup for the request.

The Controller class is responsible for the following processing stages:

  • Locating the appropriate action method to call and validating that it can be called.
  • Getting the values to use as the action method's arguments.
  • Handling all errors that might occur during the execution of the action method.
  • Providing the default WebFormViewEngine class for rendering ASP.NET page types (views).

Upvotes: -1

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