ASP.NET MVC Introduction and bit depth session for beginners

2. • A design Pattern (Methodology)
• Invented by Smalltalk programmer (Trygve
Reenskaug 1979).
• Separation of Concerns / Single Responsibility
Principle
• More easily testable

3. M
Model
V
View
CController
• Representation of domain data
• Business Logic
• Persistence mechanisms
• User Interface
• The representation of Model
• An intermediary between Model and View
• Application’s Brain (Handle user requests, bind
Data, return views)

4. Ok
C
Controller
M
Model
V
View
CreateInvoice (fact)
Create invoice (data)
fact = new Invoice ()
LatestInvoices ()
return view ("Last-Invoices", ListFact[])
ListFact[]
HTML

5. • Part of ASP.NET
• Not an upgrade or replacement for Web Forms
ASP.NET
Webforms MVC Webpages

6. • No server controls
• No ViewState
• No Code Behind
• Full control over html
• Unit Testing

7. • Separation of application tasks (No code Behind)
• Flexibility and Extensibility
• Friendly URLs (Routing)
• Scalability and Performance
• Supports existing ASP.NET features (Authentication,
Membership, roles, output caching,…)
• Natural integration with Ajax

9. • View Engines
o Aspx
o Razor
• Layout
• Partial View
• Section
• HtmlHelper, AjaxHelper

10. • ActionLink
@Html.ActionLink(“Modifier", “Edit“, new {Id=3})
<a href="/Product/Edit/6">Modifier</a>
• Form Elements (Form, TextBox, Hidden,….)
@Html.TextBox(“Nom")
<input id=" Nom " type="text" value="" name=" Nom ">

11. • DropDownList
var db = new NorthwindDataContext();
IEnumerable<SelectListItem> items = db.Categories
.Select(c => new SelectListItem { Value = c.CategoryID.ToString(), Text = c.CategoryName });
ViewBag.Categories = items;
@Html.DropDownList("CategoryID",
(IEnumerable<SelectListItem>) ViewBag.Categories)

12. • Ajax ActionLink
@Ajax.ActionLink("Get Time", "GetTime", new AjaxOptions () {
UpdateTargetId="divTorefresh",
HttpMethod="GET"
})
<a href="/Home/GetTime" data-ajax-update="#divTorefresh"
data-ajax-mode="after" data-ajax-method="GET" data-
ajax="true">Get Time</a>

14. • Action Results
• Filters
• Caching

15. • ViewResult
• PartialViewResult
• JsonResult
• JavaScriptResult
• ContentResult
• FileResult
• RedirectResult

16. • Authorization filters
• Action filters
• Result filters
• Exception filters

17. [OutputCache(Duration=3600)]
Public ActionResult GetListCountries()
{
// Logic to get countries list
}
[OutputCache(Duration=3600, VaryByParam = "countryId")]
Public ActionResult GetListRegions(int countryId)
{
// Logic to get regions list
}

19. • Annotation
• Validation(Client Side & Server Side)

20. • Required
• DisplayName
• Range
• DataType
• StringLength

22. • Open source package manager for the .NET
Framework
• Provide the ability to produce and consume packages

24. • Bundling & Minification
• Web Api
• Template Mobile
• Asynchronous
• RealTime avec SignalR

25. Improve JavaScript and CSS files loading
• Minimize the Number of requests (Bundle in
one File)
• Reduce the size of files (remove spaces, enters
and comments)
Fully customizable and extensible

29. • Entity Framework
• Database First
• Model First
• Code First

30. • Object-relational mapping (ORM) Framework
• Gives an automated mechanism for Data Access
• Manipulate Data as Object
• Reduce hard coded Query
• Have inheritance relationships between entities
• Performing basic CRUD(Create, Read, Update, Delete)

32. • Existing DataBase
• Generate .Edmx From DataBase
• Use ObjectContext & DBContext
• Use T4 template (POCO)

33. • Empty Edmx Model
• Design th DB Schema
• Generate DataBase From Model

34. • Create Domain Models (Class)
• Generate DataBase From Domain Models
• Full Control Over Code
• No Autogenerated code

36. • User Authentification
• Authorization
• Cross-site request forgery
• Cross-site Scripting

37. • Forms Authentification
• Cookies
• Windows Authentification
• Windows Session
• Via IIS
• OAuth
• Facebook, google, Hotmail, twitter, etc.

38. • Role-based Authorization
• [Authorize(Roles = "Admin, Super User")]
• [Authorize(Users = "Betty, Johnny")]

39. • Malicious attack (Cross Domain)
• Using Forms
• Session hijacking

40. • Malicious attack Using Script Injection
• Inject Code Inside Pages

42. • Design pattern
• Removal of hard-coded dependencies
• Giving an object its instance variables (Dynamically)