ASP .NET MVC Fundamentals Tutorial Videos for Beginner

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ASP .NET MVC Fundamentals Tutorial Videos for
Beginner by
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Highlights

• The MVC mindset
• Controllers
• Actions Methods
• ASP.NET routing
• Action result types
• Action selectors and Action filters

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ASP .NET MVC Mindset

• MVC stands for Model View Controller.
• It is a development model used by ASP.NET. 
• Allows  developing complex applications.
• ASP.NET MVC gives effective patterns to build
  dynamic websites.
•  MVC includes features that facilitate rapid,
  test-driven development.
• Provides an useful way to Organize code, markup,
  and control flow.

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Controllers

•  MVC framework maps URLs to classes are referred
  as Controllers
• Controllers process incoming requests, handle
  user input and interactions, and execute
  appropriate application logic.
• ControllerBase is the base class for all
  controllers.
• Controller class inherits from ControllerBase,
  responsible for Locating the appropriate action
  method, getting action method's arguments values
  and Handling errors.

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Action Methods

• Responsible to execute user requests and generate
  response to it.
• Controller defines action methods. Controllers
  can include as many action methods as needed.
• Action methods on usually have a one-to-one
  mapping with user interactions.
• When a user enters a URL into the browser,
  controller determines the appropriate action
  method to handle the request. 

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ASP.NET routing

• Mapping of web requests to controller actions is
  known as routing.
• ASP .NET routing engine relies on URL patterns to
  decide which controller action has to handle
  given request.
• Routing is fully integrated and much powerful
  which helps a lot in Search Engine Optimization.
• ASP.NET routing enables users to use URLs that do
  not have to map to specific files in a Web site,
  can use URLs that are descriptive of the user's
  action

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Action result types

• Action result is a return type of a controller
  method, also called as action method.
• serves as the base class for Result classes.
• Action methods return models to views, file
  streams, redirect to other controllers.
• There are many derived Action Result types you
  can use to return results.

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Action result types

• ContentResult Returns a user-defined content
  type.
• JsonResult Returns a serialized JSON object.
• EmptyResult Represents a return value that is
  used if the action method must return
  a null result .
• ViewResult Renders a view as a Web page.
• FileResult Returns binary output to write to the
  response.
• RedirectResult Redirects to another action method
  by using its URL.

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Action selectors and Action Filters

• Action selectors are attributes that can be
  applied to action methods to invoke in response
  to a request.
• Action filter is an attribute that you can apply
  to a controller action or an entire controller
  that modifies the way in which the action is
  executed. In ASP.NET MVC there are several
  filters, they are
• Output Cache This action filter caches the
  output of a controller action for a specified
  amount of time.
• Handle Error This action filter handles errors
  raised when a controller action executes.
• Authorize This action filter enables you to
  restrict access to a particular user or role.

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