Pro ASP.NET 2.0 in VB 2005

1358 Pages·2006·23.398 MB·English

by  Laurence Moroney, Matthew MacDonald (Ed.)

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Welcome to Pro ASP.NET 2.0 in VB 2005,Special Edition. This book is all about n
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author of but a volume of hard-won, practical, usable advice that you can use to build
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Pro ASP.NET 2.0
in VB 2005
Special Edition
Laurence Moroney
and Matthew MacDonald (Ed.)
7761FM.qxd 9/5/06 8:50 AM Page ii
Pro ASP.NET 2.0 in VB 2005,Special Edition
Copyright © 2006 by Laurence Moroney,Matthew MacDonald (Ed.),K.Scott Allen,James Avery,
RussBasiura,Mike Batongbacal,Marco Bellinaso,Matt Butler,Andreas Eide,Daniel Cazzulino,
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I would like to dedicate this book to a few people
without whom it never would have been possible.
To Yaacov and Philippe Cohen at Mainsoft,
who are remarkable men creating an excellent working
environment with God at its center.I appreciate every minute,
every conversation,and every e-mail I get from you guys.
Thanks!
To my wife,Rebecca,and children,Claudia and Christopher,
for their eternal patience and support.
Thank you so much!
To the God of Abraham,Isaac,Jacob,and Jesus
through whom all things are possible.
—Laurence Moroney
7761FM.qxd 9/5/06 8:50 AM Page iv
Contents at a Glance
About the Author. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxviii
About the Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxix
About the Technical Reviewer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxx
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxxi
PART 1 ■ ■ ■ Core Concepts
■ CHAPTER 1 Introducing ASP.NET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
■ CHAPTER 2 Visual Studio 2005 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
■ CHAPTER 3 Web Forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
■ CHAPTER 4 Server Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
■ CHAPTER 5 ASP.NET Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
■ CHAPTER 6 State Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
PART 2 ■ ■ ■ Data Access
■ CHAPTER 7 ADO.NET Fundamentals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
■ CHAPTER 8 Data Components and the DataSet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
■ CHAPTER 9 Data Binding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
■ CHAPTER 10 Rich Data Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
■ CHAPTER 11 Caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391
■ CHAPTER 12 XML . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 425
■ CHAPTER 13 Files and Streams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 469
PART 3 ■ ■ ■ Building ASP.NET Websites
■ CHAPTER 14 User Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 501
■ CHAPTER 15 Themes and Master Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 523
■ CHAPTER 16 Website Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 553
■ CHAPTER 17 Resources and Localization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 599
■ CHAPTER 18 Website Deployment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 619
iv
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PART 4 ■ ■ ■ Security
■ CHAPTER 19 The ASP.NET Security Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 669
■ CHAPTER 20 Forms Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 691
■ CHAPTER 21 Membership . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 709
■ CHAPTER 22 Windows Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 751
■ CHAPTER 23 Authorization and Roles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 777
■ CHAPTER 24 Profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 803
■ CHAPTER 25 Cryptography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 839
■ CHAPTER 26 Custom Membership Providers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 867
PART 5 ■ ■ ■ Advanced User Interface
■ CHAPTER 27 Custom Server Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 897
■ CHAPTER 28 Design-Time Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 939
■ CHAPTER 29 Dynamic Graphics and GDI+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 973
■ CHAPTER 30 Portals with WebPart Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1005
PART 6 ■ ■ ■ Web Services
■ CHAPTER 31 Creating Web Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1049
■ CHAPTER 32 Web Service Standards and Extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 1091
■ CHAPTER 33 Advanced Web Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1135
PART 7 ■ ■ ■ Client-Side Programming
■ CHAPTER 34 JavaScript and Ajax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1173
■ CHAPTER 35 Atlas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1221
■ INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1269
v
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Contents
About the Author. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxviii
About the Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxix
About the Technical Reviewer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxx
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxxi
PART 1 ■ ■ ■ Core Concepts
■ CHAPTER 1 Introducing ASP.NET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
The Evolution of Web Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
The Development World Before ASP.NET . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
What’s Wrong with Classic ASP? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
ASP.NET 1.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Seven Important Facts About ASP.NET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Fact 1:ASP.NET Is Integrated with the .NET Framework . . . . . . . . . . . . . . . 7
Fact 2:ASP.NET Is Compiled,Not Interpreted . . . . . . . . . . . . . . . . . . . . . . . . 7
Fact 3:ASP.NET Is Multilanguage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Fact 4:ASP.NET Runs Inside the Common Language Runtime . . . . . . . . . 11
Fact 5:ASP.NET Is Object-Oriented . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Fact 6:ASP.NET Is Multidevice and Multibrowser . . . . . . . . . . . . . . . . . . . . 14
Fact 7:ASP.NET Is Easy to Deploy and Configure . . . . . . . . . . . . . . . . . . . . 14
ASP.NET 2.0:The Story Continues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Visual Basic 2005 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Visual Studio 2005 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
ASP.NET 2.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
■ CHAPTER 2 Visual Studio 2005 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
The .NET Development Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
The Compiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
The Visual Studio 2005 IDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Websites in Visual Studio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Projectless Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Migrating a Visual Studio .NET Project . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Designing a Web Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
vi
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■ CONTENTS vii
The Visual Studio IDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Solution Explorer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Document Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Toolbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Error List and Task List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Server Explorer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
The Code Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Adding Assembly References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
IntelliSense and Outlining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
The Coding Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
How Code-Behind Files Are Connected to Pages . . . . . . . . . . . . . . . . . . . . 50
How Control Tags Are Connected to Page Variables . . . . . . . . . . . . . . . . . . 50
How Events Are Connected to Event Handlers . . . . . . . . . . . . . . . . . . . . . . . 51
Visual Studio Debugging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Single-Step Debugging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Advanced Breakpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Variable Watches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Visual Studio Macros . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
ASP.NET Development Helper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
■ CHAPTER 3 Web Forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Page Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
HTML Forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Dynamic Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
The ASP.NET Event Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Automatic Postbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
View State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
XHTML Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Web Forms Processing Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Page Framework Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
User Code Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Event Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Automatic Data Binding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Cleanup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
A Page Flow Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
The Page As a Control Container . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Showing the Control Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
The Page Header . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Dynamic Control Creation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
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The Page Class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Session,Application,and Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
User . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Accessing the HTTP Context in Another Class . . . . . . . . . . . . . . . . . . . . . . 101
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
■ CHAPTER 4 Server Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Types of Server Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
The Server Control Hierarchy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
HTML Server Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
The HtmlControl Class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
The HtmlContainerControl Class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
The HtmlInputControl Class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
The HTML Server Control Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Setting Style Attributes and Other Properties . . . . . . . . . . . . . . . . . . . . . . 110
Programmatically Creating Server Controls . . . . . . . . . . . . . . . . . . . . . . . . 111
Handling Server-Side Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Web Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
The WebControl Base Class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Basic Web Control Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Enumerated Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Colors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Fonts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Focus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
The Default Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Scrollable Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Handling Web Control Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
The List Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
The Selectable List Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
The BulletedList Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Input Validation Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
The Validation Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
The Validation Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
The BaseValidator Class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
The RequiredFieldValidator Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
The RangeValidator Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
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The CompareValidator Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
The RegularExpressionValidator Control . . . . . . . . . . . . . . . . . . . . . . . . . . 137
The CustomValidator Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
The ValidationSummary Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Using the Validators Programmatically . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Validation Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
The ASP.NET Rich Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
The AdRotator Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
The Calendar Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
■ CHAPTER 5 ASP.NET Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Anatomy of an ASP.NET Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
The Application Domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Application Lifetime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Application Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Application Directory Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
The Global.asax Application File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Application Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Demonstrating Application Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
ASP.NET Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
The Machine.config File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
The Web.config File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Reading and Writing Configuration Sections Programmatically . . . . . . . . 169
The Website Administration Tool (WAT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Extending the Configuration File Structure . . . . . . . . . . . . . . . . . . . . . . . . 173
Encrypting Configuration Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
.NET Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Creating a Component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Using a Component Through the App_Code Directory . . . . . . . . . . . . . . . 179
Using a Component Through the Bin Directory . . . . . . . . . . . . . . . . . . . . . 180
Extending the HTTP Pipeline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
HTTP Handlers and HTTP Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Creating a Custom HTTP Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Configuring a Custom HTTP Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Registering HTTP Handlers Without Configuring IIS . . . . . . . . . . . . . . . . . 187
Creating an Advanced HTTP Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Creating a Custom HTTP Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193