Asp.net mvc

ASP.NET MVCASP.NET MVC
[M[Modelodel VViewiew CController (MVC)ontroller (MVC)
applications by using theapplications by using the
ASP.NET frameworkASP.NET framework]
Taranjeet Singh
www.ptlsolution.co
m

What is ASP.NET MVC?
Saying simply, ASP.NET MVC is a new
framework from Microsoft that sites over
standard ASP.NET engine.
ASP.NET
ASP.NET MVC

ASP.NET MVC Features
What new does ASP.NET MVC bring in
terms of web architecture?
1. Clear separation of logic: Model, View, Controller
2. Test-Driven Development
3. Full control over HTML and JavaScript
4. Friendly URLs

Model + View + Controller = MVC
ASP.NET MVC provides an alternative to
the ASP.NET “Web Forms” pattern for
creating MVC-based Web applications.
Model
ControllerView
Model objects implement the
logic for the application's
data domain. Often, model
objects retrieve and store the
app state in a database.
Controllers handle
user interaction, work
with the model, and
select a view to render
that displays UI
Views display the
application's user
interface (UI). Typically,
this UI is created from
the model data.

Response
ControllerController
ViewView

Full control over HTML & JS
In ASP.NET MVC, designed HTML & JS
pages are not more messed up with
“postbacks” and “ViewStates”, which is
specific for “Web-forms” pattern.
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE"
value="/wEPaA8FDzhjYjBhZjA0ODYyMTM2NBgGBR5fX0NvbnRyb2xzUmVxdWlyZVBvc3RCYWNrS2V5X18WAQUhY3RsMDAkaGVhZGVyJHVjTWFp
bk1lbnUkc2VhcmNoQnRuBTdjdGwwMCRNYWluQ29udGVudCRycHRWaWRlbyRjdGwwMyRwcmVzZW50YXRpb25DYXJkJG11bHRp" />
<script type="text/javascript">
//<![CDATA[
var theForm = document.forms['aspnetForm'];
function __doPostBack(eventTarget, eventArgument) {
if (!theForm.onsubmit || (theForm.onsubmit() != false)) {
theForm.__EVENTTARGET.value = eventTarget;
theForm.__EVENTARGUMENT.value = eventArgument;
theForm.submit();
}
}
//]]>
</script>

Friendly URLs
MVC binds web paths to the logical URLs
rather than to the physical files.
C:InetpubwwwrootWebSiteProducts.aspx
http://www.website.com/Products.aspx?name=Meat
http://www.website.com/Products/Meat
Physical location:
ASP.NET style:
MVC style:

Routing
R => the hidden characterMVC + R
1. Maps incoming URLs to the application and routes them to the right
Controller’s Action method to execute them
2. Happens in RegisterRoutes function in the global.asax file

Routing
Don’t settle for…
/ProductsDetails.aspx?CategoryID=123
When you can easily have…
/Product/Details/123/
Or whatever else makes sense…

Routing
To customize routing rules

How does ASP.NET MVC looks like?
ASP.NET MVC installs a new type of web
project into VS2013.

How does ASP.NET MVC looks like?
A newly created project has an ASP.NET
MVC specific directory structure.
App_Data folder is the physical store for data.
Content folder keeps files such as scripts, CSS, images, and so on.
Controllers folder is the location for controllers. The MVC framework
requires the names of all controllers to end with "Controller"—for
example, HomeController, LoginController, or ProductController.
Models stores classes that handle application business logic.
Scripts folder is for script files that support the application. By
default, this folder contains AJAX script files and the JQuery library.
Views is the recommended location for views. Views use .aspx,
.ascx, and .master files, in addition to any other files that are related
to rendering views.

Test-Driven Development
Since the UI is completely separated from
the business logic, it’s now easy to write
Unit Tests for the ASP.NET MVC
application.
Controller
Unit Tests that cover
User Actions and Data Model
User Interface Data Objects

Conclusion
ASP.NET MVC supports pure MVC pattern, the
same development pattern Rails are based on.
The advantages of ASP.NET MVC applications:
1. It makes it easier to manage complexity by dividing an application into
the model, the view, and the controller.
2. It does not use view state or server-based forms.
3. It uses a Front Controller pattern that processes Web application
requests through a single controller. This enables you to design an
application that supports a rich routing infrastructure with friendly
URLs.
4. It provides better support for test-driven development (TDD).
5. It works well for Web applications that are supported by large teams of
developers and Web designers who need a high degree of control
over the application behavior.

Web Links to Additional Resources
• http://www.asp.net/mvc - official site
• http://weblogs.asp.net/scottgu/archive/2007/11/13/asp-net-mvc-
framework-part-1.aspx - development basics on ASP.NET MVC
framework-part-2-url-routing.aspx - URL routing used in ASP.NET
MVC
framework-part-3-passing-viewdata-from-controllers-to-views.aspx
- interaction between Controllers and Views
framework-part-4-handling-form-edit-and-post-scenarios.aspx -
managing form input data

Asp.net mvc

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