The Model—view—controller shortly known as MVC is a software architectural design for implementing user interfaces on computers. The MVC pattern is a great architecture no matter whatever the language you are using for the development. MVC patterns separate the input, processing, and output of an application. This model divided into three interconnected parts called the model, the view, and the controller. All of the three above given components are built to handle some specific development aspects of any web or.
In the MVC application development, the controller receives all requests for the application and then instructs the model to prepare any information required by the view. The view uses that data prepared by the controller to bring the final output. This level is very important as it represents the data to the user. So, whenever there are changes done in the model it will automatically notify observers that the changes are made. The model may be a single object or a structure of objects.
A view is a visual representation of the MVC model. This level creates an interface to show the actual output to the user. However, a view will not display anything itself. It is the controller or model that tells view of what to display to the user.
It also handles requests from the user and informs the controller. A view is connected to its model and gets the data necessary for the presentation by asking certain questions. Sometimes, it also updates the model by sending appropriate messages.
All these questions and messages are sent back to the model in such an easy terminology that can easily understand the information sent by a model or a controller. The controller is a level that acts as the brain of the entire MVC system. A controller also acts as a link between a user and the system.
Active Oldest Votes. Hope this helps. Improve this answer. Peter Mortensen 29k 21 21 gold badges 97 97 silver badges bronze badges.
The original MVC was actually designed to support classic text-based applications, and later desktop applications. Its advent in the web world is much, much more recent, and generally the last to get useful MVC frameworks. So you don't need a framework to do this. You can separate them by yourself. NET class. A model is accessible by both controller and view.
A model can be used to pass data from Controller to view. A view can use model to display data in page. All page specific HTML generation and formatting can be done inside view. One can use Inline code server tags to develop dynamic pages. NET class which inherits system. Controller is a heart of the entire MVC architecture. Controller can access and use model class to pass data to views Controller uses ViewData to pass any data to view.
I know this is quite an old post, but this explanation of MVC is the best I have heard yet, after struggling to learn MVC for several weeks now. Marufur Rahman Marufur Rahman 81 1 1 silver badge 1 1 bronze badge. Ned Batchelder Ned Batchelder k 69 69 gold badges silver badges bronze badges.
Mike Mike 2 2 silver badges 6 6 bronze badges. Stone T. Stone Model View Controller or MVC as it is popularly called, is a software design pattern for developing web applications. Pir Fahim Shah 9, 1 1 gold badge 74 74 silver badges 74 74 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook.
Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Now, let's talk about why MVC? Why is MVC more reliable than others, like Web forms? Let's discuss why only MVC does not have Web forms. Let's have some background approaches of ASP. This image will explain more scenarios of the difference between MVC and Web forms.
Let's view it. Thus, Microsoft ventured something called Visual programming or RAD programming Rapid App development , so they set that for this, rather than programmer code for this, so for creating a window Microsoft introduced tool box.
Due to this, they launched Visual Studio and again in programming language, Microsoft got success. The RAD programming is great but it leads to some issues -- the issue is at the backend of the code. In other words, when the programmers drag and drop, the code is generated in partial class.
If user sends an action, what happens in the page life cycle is that the life cycle just calls a complex structure, and the page loads the page in, and you know what other kind of life cycles get executed, and then runs the required event. What should happen is this is a required event, not one that runs other events. So what happened in this scenario when the end user sends a request as an action is it then goes to the View first, and again runs a complicated life cycle. In other words, you go to the complicated life cycle, but the logical approach should be to go to action directory; that means once the user sends the action request it should actually map to a method inside the program, and the method gets invoked, runs all the necessary logic for the action, and then it's invoked the required view and that would actually happen in MVC.
Problem no 2: Behind code is not reusable.. So the connected problem for selecting bad architecture was that the behind code was not reusable so the RAD architecture is not usable but in MVC we can code reusable code again and again. Problem no 3: Html is not the only response type. Mostly the web pages are on HTML but in case of xml if your application is communicating with languages like JavaScript, probably its sends it to Jason then you would like to invoke the action but the action can have different kinds of response types depending on the situation.
Because the view always fixed.
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