August 2014
Intermediate to advanced
624 pages
16h
English
Content preview from Professional ASP.NET MVC 5
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Chapter 2Controllers
—by Jon Galloway
What's In This Chapter?
- Understanding the controller's role
- Setting up a sample application: The MVC Music Store
- Controller 101
This chapter explains how controllers respond to user HTTP requests and return information to the browser. It focuses on the function of controllers and controller actions. We haven't covered views and models yet, so our controller action samples will be a little high level. This chapter lays the groundwork for the following several chapters.
Chapter 1 discussed the Model-View-Controller (MVC) pattern in general and then followed up with how ASP.NET MVC compares with ASP.NET Web Forms. Now it's time to get into a bit more detail about one of the core elements of the three-sided pattern that is MVC—the controller.
THE CONTROLLER'S ROLE
Starting out with a quick definition and then diving into detail from there is probably best. Keep this definition in mind while reading this chapter. It can help to ground the discussion ahead with what a controller is all about and what it's supposed to do.
Controllers within the MVC pattern are responsible for responding to user input, often making changes to the model in response to user input. In this way, controllers in the MVC pattern are concerned with the flow of the application, working with data coming in, and providing data going out to the relevant view.
Way back in the day, web servers served up HTML stored in static files on disk. As dynamic web pages gained prominence, ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.