Mvc why

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. Problem no 5: Behind Code We have easy way of unit testing in MVC, which is the option of a Unit test after creating a new project but in the web it would quite difficult to handle.

So the solution of these problem is the simple structures, just MVC in this diagram, the first line shows RAD or WEB FORMS architecture which will be in the form of aspx which is divided into two parts -- one is view and the other is behind code which is called the middle layer, which has the business logic and this logic calls the DAL data access layer.

The problem is the first time it comes in the view. But in MVC its behind code is controller and first receives the request and then sends to the view and model as mentioned in the diagram. View All. Inamullah Khan Updated date Aug 03, Let's discus some of the drags of this RAD programming:. Problem no 1: View Based architecture for an Action Based requirement.

So Web Forms is a View based architecture -- always view has been decided but in the case of MVC what happened is it first hits to controller so the possibility of combining is more in the case of MVC but not in the case of Web Forms. NET, this framework is defined in the System. Mvc assembly. The latest version of the MVC Framework is 5. Provides an extensible and pluggable framework, which can be easily replaced and customized. For example, if you do not wish to use the in-built Razor or ASPX View Engine, then you can use any other third-party view engines or even customize the existing ones.

Utilizes the component-based design of the application by logically dividing it into Model, View, and Controller components. This enables the developers to manage the complexity of large-scale projects and work on individual components.

MVC structure enhances the test-driven development and testability of the application, since all the components can be designed interface-based and tested using mock objects. Hence, ASP. Supports all the existing vast ASP. What is MVC Architecture? View: Graphical User Interface The view is a visual representation of the data- like a chart, diagram, table, form. Controller: Brains of the application. Web App as a MVC. Separation of Concerns MVC design allows for Separation of Concerns - dividing the logic up between the 3 buckets, so that each bucket can act independently.

Loosely Coupled Loosely coupled means that each piece: the model, view and controller, act independently of eachother. MVC with User Action.

Model In our Game of Thrones example the model is the fake database that lists the houses and characters. Controller The controller is the brains of our application - the JavaScript that handles the click event. What to learn next Congratulations on completing your first look into MVC architecture.

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