Introduction to ASP.NET MIS 324 Professor Sandvig

Outline  Why ASP.NET? .NET Framework  ASP.NET Features Object Oriented Object Oriented Event driven Event driven Server controls Server controls  Summary

Why ASP.NET?  Industrial Strength Full Featured Full Featured Security, logging, performance, etc.Security, logging, performance, etc. Highly integrated with Visual Studio Highly integrated with Visual Studio .NET aimed at corporate users Employers of WWU graduates Employers of WWU graduates  Designed for large, complex projects

.NET  PHP/ASP .NET

.NET Framework  Create both web & Windows applications Different interface Different interface Same plumbing Same plumbing  Support for many languages VB, C#, J#, Java, C++, PERL, Python, Effiel, Cobol,..VB, C#, J#, Java, C++, PERL, Python, Effiel, Cobol, in development15+ in development  Runs on several operating systems Windows, Unix Windows, Unix Under development: Linux & FreeBSD Under development: Linux & FreeBSD Mono projectMono projectMono projectMono project

.NET Framework  Two major components: 1. Common Language Runtime (CLR) Manages compilation, memory, security, exceptions, garbage collection, etc.Manages compilation, memory, security, exceptions, garbage collection, etc. Technical details outside scope of this classTechnical details outside scope of this class 2. Class Library…

.NET Class Library  Classes are pre-written code Web server controls, access data, manipulate data, send , etc.… Web server controls, access data, manipulate data, send , etc.…  Classes are grouped into Namespaces .NET Class Library.NET Class Library.NET Class Library

.NET Features 1. Object Oriented 2. Web Server Controls 3. Visual Studio

1. Object Oriented  Advantages: Encapsulation Encapsulation Compartmentalize functionality into classesCompartmentalize functionality into classes Messy details hidden inside the class Messy details hidden inside the class Need to understand only the class interfaceNeed to understand only the class interface Reusability Reusability Build once, test, reuse many timesBuild once, test, reuse many times

Object Oriented  All modern programming languages support OOP  OOP concepts & terminology are universal

2. Web Server Controls  Advantages: Separation of code and presentation Separation of code and presentation Code provides logic & generate outputCode provides logic & generate output Server controls displayServer controls display We write less HTML & Javascript We write less HTML & Javascript Data saved in viewstate Data saved in viewstate  Disadvantage: Must learn control featuresMust learn control features

2. Web Server Controls  Example: Hello.aspx Hello.aspx Hello.aspx

3. Visual Studio  Integrated Development Environment  Features: Drag & drop Drag & drop Web Server ControlsWeb Server Controls IntelliSense IntelliSense Syntax checking Syntax checking pop-up class documentation pop-up class documentation Debugger Debugger Integration with Sql Server Integration with Sql Server  HUGE time saver Faster learning Faster learning

Summary  ASP.NET State-of-the-art programming technology State-of-the-art programming technology  Tremendous functionality Complex!! Complex!! Be prepared to work hard Be prepared to work hard  Fun!!