Jscript .Net Programming

• Using JScript .NET to build ASP.NET applications
• Building JScript .NET Web services
• Writing JScipt .NET components
• Building Windows Forms applications with JScript .NET
• And more

Foreword

Preface

Part I Introducing .NET and JScript .NET

Chapter 1 Introducing the .NET Framework

What Is the .NET Framework?

How JScript Relates to the .NET Framework

Problems Solved by the .NET Framework

Lack of interoperability

Inconsistent programming models

Versioning problems

Inconsistent toolset

Summary

Chapter 2 Components of the .NET Framework

Identifying the Key Components

The Common Language Runtime

Cross-language interoperability and easy deployment

Common runtime services

The .NET Class Library

The Common Type System

Base data types

Value types

Reference types

ASP.NET

Web Forms

Web Services

Windows Forms

Visual Studio .NET

Summary

Chapter 3 Exploring JScript .NET

JScript .NET at a Glance

The key language features of JScript .NET

How JScript .NET relates to JScript

How JScript .NET relates to Internet Explorer

How JScript .NET relates to IIS

Why Use JScript .NET?

JScript .NET for new or occasional programmers

JScript .NET for JScript and JavaScript programmers

JScript .NET for Visual Basic programmers

JScript .NET for C++ programmers

Advantages of JScript .NET over C#

Summary

Part II JScript Primer

Chapter 4 Elements of JScript

Playing by the Rules

Case-awareness

Formatting your code

Comments

Literals

Identifiers

The infamous semicolon

Braces

Summary

Chapter 5 JScript Data Types and Intrinsic Objects

Data Types

The Boolean type

The String type

The Number type

The Object type

Intrinsic JScript Objects

The arguments object

The Array object

The String object

The Number object

The Math object

The Date object

The RegExp object

The Error object

The this object

The Function object

The ActiveXObject object

The Enumerator object

The VBArray object

The Microsoft Scripting Runtime objects

Summary

Chapter 6 JScript Statements and Error Handling

Exploring JScript Statements

The if statement

The while statement

The do/while statement

The for statement

The for...in statement

The continue statement

The break statement

The switch statement

The return statement

The with statement

Using Exceptions for Error Handling

Catching exceptions

Throwing exceptions using the Error object

Using the finally clause

Summary

Chapter 7 Conditional Compilation and JScript Functions

Conditional Compilation

The @cc_on statement

The @set statement

The @if statement

Using JScript Functions

Summary

Chapter 8 Working with JScript Operators and Custom Data Types

JScript Operators

Unary operators

The new operator

The delete operator

The typeof operator

The instanceof operator

The prefix increment and decrement operators

The postfix increment and decrement operators

The bitwise not (~) operator

The logical not (!)

The negation (-) operator

Binary operators

Additive operations

Multiplicative operations

Logical operators

Comparative operators

Ternary Operators

Bitwise Operators

Comma operator

Custom Data Types

Summary

Part III JScript Essentials: What Every JScript .NET Developer Should Know

Chapter 9 What's New in JScript .NET

Compiling Code

Introducing the New Data Types

Understanding Type Annotation

Working with the New Statements

The class statement

The import statement

The package statement

The const statement

The enum statement

Exploring the New Directives

The @option(fast) directive

The @debug directive

The @position directive

Summary

Chapter 10 JScript .NET in Action

Creating Windows Forms-Based Applications

xForm: XML to Windows Forms

Compiling xForm

Creating a Currency Converter

Generating the application framework

Designing the currency conversion classes

Relating system behavior to the form

Handling form events in JScript .NET

Creating a Web Service

Examining the QoD code

Using the QoD Web service

Accessing the QoD service by using a Windows Forms client

Creating an ASP.NET Application

Examining the ASP.NET code

A close-up look at the ASP.NET magic

Summary

Chapter 11 Debugging and Error Handling

Debugging a Sample Application

BugBank system design

Starting the debugger

Using the Trace class

Configuring tracing by using an application configuration file

Assertive code

Interactively tracking down bugs

Debugging an ASP.NET Application

Configuring the ASP.NET application

Starting the debugging session

Summary

Chapter 12 Exceptional JScript .NET

Handling and Creating Exceptions

Exceptions: The basics

Discriminating exceptions

Creating your own exceptions based on BCL types

Ordering of exception handlers

The .NET Framework and Exceptions

Be exception aware

Maintain consistent state in the presence of exceptions

Don't throw exceptions from Finalize, Dispose, or Close methods

Change program state by using nonthrowing methods

Consider using other error-handling tactics

Summary

Part IV Object-Oriented Programming Primer

Chapter 13 Object-Oriented Methods and Development Phases

Understanding Object-Oriented Methods

OO Methods

Benefits of the Object-Oriented Approach

Better requirements

Early validation of design

Easier maintenance and upgrades

Improved communication

Development Phases

Analysis

Design

Architectural design

Using architectural elements from somewhere else

Using your insight into the problem

Using an architectural method

Tactical design

Detailed design

Translation

Testing

Summary

Chapter 14 Analyzing Your System

Implementing Use Cases

Actors

Use Case diagrams

Writing Use Cases

Linking Use Cases

Modeling

The role of notation

Unified Modeling Language

Summary

Chapter 15 Designing Classes

Objects

Classes

Attributes

Behaviors

Messages

Concurrency

Thread synchronization

Inter-thread communication

Identifying Classes

Classification is iterative

Domain analysis

Prototyping

Object-Oriented classification

Relationships

Association

Aggregation

Containment

Generalization/Inheritance

Multiplicity

Assembling the Architecture

Component model

Deployment model

Summary

Part V Putting It All Together

Chapter 16 ASP.NET

Setting Up the Sample

System Design

Coding the Start Page

Directives

Page_Load event

Session variables

Server.Transfer method

DirectoryInfo class

HTML and controls

Declaring the Explorer Page

Coding the Database Explorer

PageLoad function

Extracting a listing of tables

DataView

Binding the list of tables

Listing the columns

Querying the currently selected table

Binding the results to a DataGrid and gathering information

Specialized collection

Displaying the page to the user

OnEditCommand handler

OnUpdateCommand handler

Using HTML form data to get values the user entered

Managing rows with ADO.NET

Building the SQL Update statement

Summary

Chapter 17 A Walk Through a JScript .NET Application

Overview of the jsNetNews Sample Application

Introducing Windows services

Why write a Windows service?

Managing Windows services

jsNewsXmlProcessor: Infrastructure

Setting up the sample

jsNewsXmlProcessor's role

Writing the service control functions

JScript .NET and ServiceBase.OnStart

Installing the service

Implementing jsNewsXmlProcessor

Processing XML using a DataSet object

Adding new data to the News database

Compiling the service

Writing the jsNetNews Web Service

Writing the jsNetNews Submit News Page

Writing the Start Page

Summary

Chapter 18 Migrating from ASP to ASP.NET

Overview of the Survey Sample Application

Setting up the survey ASP sample

An overview of the survey database

Examining the ASP code

Creating a new survey

Implementing the Three Phases of Migration

Basic migration

Intermediate migration

Advanced migration

Migrating the Survey Database to ADO.NET

ADO versus ADO.NET

Examining global.asax

Examining default.aspx

Examining generateSurvey.aspx

Migrating the remaining code to ADO.NET

Summary

Appendix A: UML Notation

Appendix B: Translating from UML to JScript.NET Code

Appendix C: XML Primer

Index