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Week 2- Controllers in ASP .NET Core MVC Web Application.pptx
- 1. STUDENTS SUCCEED AT RTC Controllers in MVC By Naser Chowdhury Email: mchowdhury@rtc.edu
- 2. RENTON TECHNICAL COLLEGE Agenda of the Lesson • Why Controllers? • The Importance of the Controllers in MVC Web Application • Understanding of the Controllers Concept • Live Coding session to demonstrate the concept • Break-out rooms sessions for students discussion • Major Takeaways • References
- 3. RENTON TECHNICAL COLLEGE Controllers • Controllers are the C# classes which controls the incoming and outgoing requests in an MVC (Model-View-Controller) web application. • Controller sits in middle of the View and Model logically and controls the authentication and authorization to access items from the Model of the application. • To read from the model and to write into model, all the read/write requests should go through the controllers.
- 4. RENTON TECHNICAL COLLEGE The importance of controllers • Controllers are the control center of an Web Application. What does it control? It controls the incoming and outgoing HTTP requests. • Web users post a form after filling it up into the server, but before saving it into the server it should be checked. • Unchecked forms could lead a serious threat to the application as it may come from the hackers and intruders. • Signing in to and accessing to a specific resources from the application should be verified by controllers. • Controllers are served as the middleware for the MVC web application.
- 5. RENTON TECHNICAL COLLEGE Creating Controllers • Controllers can be created very easily and it is a straightforward process. • Go to Controllers Folder -> Right Click on the Folder -> Then Hover your mouse on Add -> then Select Controller.
- 6. RENTON TECHNICAL COLLEGE Controllers in Coding • In the HomeController.cs, you will see some methods associated with views. • Index() is associated with the Index view page that is created in the Views. • Privacy() is associated with the Privacy view page that lies in the Privacy folder in the Views. Let’s see sample source code from the HomeController:
- 7. RENTON TECHNICAL COLLEGE Break-out rooms session • Please select a break-out room for your team and start discussing about today’s topics. • You should discuss about the importance of Controllers and why to create controllers. • Moreover, you need to check the Controllers Action Methods into the Views folder. • You will have 25 mins to complete the session.
- 8. RENTON TECHNICAL COLLEGE Major takeaways today! • The importance of having controllers into our Web Application • The roles of an controller in MVC web applications • Ways to create controller • In the coding, how to implement and write controllers action methods. • Creating controllers when needed.
- 9. RENTON TECHNICAL COLLEGE References • The images are taken from Naser’s IDE (Integrated Development Environment). • The drawing is done by Naser. "Software Application Development I" by Naser Chowdhury, Renton Technical College is licensed under CC BY 4.0