Chapter 1
An introduction to
ASP.NET programming
Murach's ASP.NET 4.5/C#, C1
© 2013, Mike Murach & Associates, Inc.
Slide 1
Objectives
Knowledge
1. Describe the components of a web application.
2. Describe the four components of a URL, and describe what happens
when you omit the file name from a URL when you request a web
page.
3. Distinguish between static and dynamic web pages, with the focus
on the web server, application server, and database server.
4. Distinguish between the Internet and an intranet.
5. Describe these terms: HTTP request, HTTP response, and round
trip.
6. Distinguish between ASP.NET Web Forms applications and MVC
applications.
7. Describe the three types of environments that can be used for
developing ASP.NET applications.
Murach's ASP.NET 4.5/C#, C1
© 2013, Mike Murach & Associates, Inc.
Slide 2
Objectives (cont.)
8. List the software components that you need on your own PC if you
want to develop and run ASP.NET web applications in a standalone
environment, including database applications.
9. Describe the class libraries and Common Language Runtime of the
.NET Framework.
10. Distinguish between the aspx files and the code-behind files in an
ASP.NET web application.
Murach's ASP.NET 4.5/C#, C1
© 2013, Mike Murach & Associates, Inc.
Slide 3
The Order page of a Shopping Cart application
Murach's ASP.NET 4.5/C#, C1
© 2013, Mike Murach & Associates, Inc.
Slide 4
The Cart page of a Shopping Cart application
Murach's ASP.NET 4.5/C#, C1
© 2013, Mike Murach & Associates, Inc.
Slide 5
The components of a web application
`
Computer
The Internet
Web Server
Tablet
Smart Phone
Murach's ASP.NET 4.5/C#, C1
© 2013, Mike Murach & Associates, Inc.
Slide 6
A static web page
Murach's ASP.NET 4.5/C#, C1
© 2013, Mike Murach & Associates, Inc.
Slide 7
A dynamic web page
Murach's ASP.NET 4.5/C#, C1
© 2013, Mike Murach & Associates, Inc.
Slide 8
How a web server processes a dynamic web page
HTTP request
`
Web Browser
HTTP response
(with HTML)
Web Server
(IIS)
Application Server
(ASP.NET)
Database Server
IIS – Microsoft’s Internet Information Server
ASP. NET – Active Server Pages.NET
Database server – any database
Murach's ASP.NET 4.5/C#, C1
© 2013, Mike Murach & Associates, Inc.
Slide 9
The two main ASP.NET technologies
 ASP.NET Web Forms – Rapid Application Development
 ASP.NET MVC – Model-View-Controller
Three other ASP.NET technologies
NOT COVERED IN THIS BOOK
 ASP.NET Web Pages with Razor
 ASP.NET Dynamic Data Entities
 ASP.NET Reports Web Site
Murach's ASP.NET 4.5/C#, C1
© 2013, Mike Murach & Associates, Inc.
Slide 10
The four editions of Visual Studio 2012
 Visual Studio Express 2012 for Web
 Visual Studio Professional 2012
 Visual Studio Premium 2012
 Visual Studio Ultimate 2012
The free edition of Visual Studio for web apps
 Visual Studio 2012 Express for Web
What the free edition includes
 IIS Express
 SQL Server Express LocalDB
Murach's ASP.NET 4.5/C#, C1
© 2013, Mike Murach & Associates, Inc.
Slide 11
The .NET Framework
.NET Applications
Visual Basic
Visual C#
Visual C++
Visual F#
.NET Framework
.NET Framework Class Library
Windows Forms classes
ASP.NET classes
Other classes
Common Language Runtime
Managed applications
Common Type System
Intermediate Language
Operating System and Hardware
Windows 7
Murach's ASP.NET 4.5/C#, C1
Windows 8
Other Operating Systems
© 2013, Mike Murach & Associates, Inc.
Slide 12
Why state is difficult to track in a web application
Client
Browser
Browser
Browser
Murach's ASP.NET 4.5/C#, C1
Server
First HTTP request:
The browser requests a page.
First HTTP response:
The server returns the
requested page and the
application ends.
Next HTTP request:
The browser requests another
page. The server has no way
to associate the browser with
its previous request.
© 2013, Mike Murach & Associates, Inc.
Web server
Web server
Web server
Slide 13
Five ASP.NET features for maintaining state
 View state (chapter 2 and 8)
 Session state (chapter 4 and 8)
 Application state (chapter 8)
 Server-side caching (chapter 8)
 Profiles
Murach's ASP.NET 4.5/C#, C1
© 2013, Mike Murach & Associates, Inc.
Slide 14
The Future Value application
after the user clicks the Calculate button
Murach's ASP.NET 4.5/C#, C1
© 2013, Mike Murach & Associates, Inc.
Slide 15
The Future Value application
with error messages displayed
Murach's ASP.NET 4.5/C#, C1
© 2013, Mike Murach & Associates, Inc.
Slide 16
Future Value form in Design view – more in C2
Murach's ASP.NET 4.5/C#, C1
© 2013, Mike Murach & Associates, Inc.
Slide 17