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Asp.net c# MVC-5 Training-Day-1 of Day-9

About MVC
Routing Example
Logic Layer
View Engine
Request Response Process
Entity framework-EF Example

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Asp.net c# MVC-5 Training-Day-1 of Day-9

  1. 1. AHM Pervej Kabir Analyst Programmer pervej_kabir@yahoo.com Cell:+8801757051005 Day-1: 06 September 2017 ASP.Net C#- MVC-5 Training
  2. 2. Introduction  About MVC  Routing Example  Logic Layer View Engine Request Response Process Entity framework-EF Example
  3. 3.  About Model –Viewer- Controller (MVC)  What is MVC?  MVC stand for Model-Viewer-Controller  It is software architectural pattern o An architectural pattern is a general, reusable solution of a commonly occurring problem in software architecture within the given context. o Architectural pattern is similar to software design pattern but have a broader scope.  It divided an application’s implementation in three components (Model, Viewer and controller)  The Model represent the application core (for instance a list of database records)  The view displays the data (the database records)  The controller handles the input.
  4. 4.  Model –Viewer- Controller (MVC) Design Goal  Separation of Concern  “The process of breaking a computer program into distinct features in functionality as little as possible “- Wikipedia  Responsibility of Model, viewer & controller are separate  Embrace the web  Able to adopt the standard web technology HTML, CSS, CSS3 etc.  Run on Asp.Net  Run on top of Asp.Net run time  Extensible  Use different plugins and changes as you like  Testable  MVC design to allow loosely couple & solid object oriented concept  Any solution & code designed in the fashion is testable
  5. 5.  MVC Logic Layer  MVC Provides full control over HTML, CSS and javascripts  You can think MVC Model defines web applications with 3 logic layers o The business layer (Model logic) o The display layer (Viewer logic) o The input control (Controller logic)  The Model is the part of application that handles the logic for the application data o Often Model objects retrieve data ( and store data ) from a database.  The View the part of application that display data o Most often Views are created from the Model data.  The Controller is the part of application that user interaction o Typically The Controller read data from the view, control user inputs and inputs data to the model.  The MVC separation helps to manage complex applications because you can focus on one aspect of a time. o For example, you can focus on the view without depending on the business logic . o It all makes essayer to test an application  The MVC separation also simplifies group development o Different developers can work on the view, the controller logic and the business logic in parallel. .
  6. 6.  What is view engine?  The view engines are responsible for rendering the HTML from views to the browser.  The view engines template will have different syntax for implementation.  Currently few number of view engines are available for Asp.net-MVC and top four are RAZOR, Traditional ASPX, SPARK and Nhaml.  MVC Request and Response Process ASP.Net MVC Request response process step by step following bellow-  1) User send the request by the URL  2) UrlRoutingModule intercepts /cut offs the request and starts parsing it.  3) The appropriate controller and handler will be identified from the URL by looking at the routing table collection. Also any data coming alone with the request is kept in RouteData.  4) The appropriate action in the identified controller will be executed.  5) The action will call the model class based on data  6) The action will then pass to some view and tell the view to proceed  7) Now the view will execute and create the markup based on logic and model’s data then push the HTML back to the browser
  7. 7.  Entity Framework –EF Example
  8. 8.  How to learn for Entity Framework –EF-6
  9. 9.  EF: Database First
  10. 10.  EF: Code First
  11. 11. 391

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