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C# with .NET
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C# Language Table of Contents
C# Language Back Cover
C# Language Professional C# 2009 with .NET 3.0
C# Language Introduction
C# Language Looking at What’s New in the .NET Framework 2.0
C# Language Introducing the .NET Framework 3.0
C# Language Where C# Fits In
C# Language What You Need to Write and Run C# Code
C# Language What This site Covers
C# Language Conventions
C# Language Source Code
C# Language Errata
C# Language roque-patrick.com
C# Language The C# Language
C# Language .NET Architecture
C# Language The Relationship of C# to .NET
C# Language The Common Language Runtime
C# Language A Closer Look at Intermediate Language
C# Language Assemblies
C# Language .NET Framework Classes
C# Language Namespaces
C# Language Creating .NET Applications Using C#
C# Language The Role of C# in the .NET Enterprise Architecture
C# Language Summary
C# Language C# Basics
C# Language Before We Start
C# Language Your First C# Program
C# Language Variables
C# Language Predefined Data Types
C# Language Flow Control
C# Language Enumerations
C# Language Arrays
C# Language Namespaces
C# Language The Main() Method
C# Language More on Compiling C# Files
C# Language Console I/O
C# Language Using Comments
C# Language The C# Preprocessor Directives
C# Language C# Programming Guidelines
C# Language Summary
C# Language Objects and Types
C# Language Classes and Structs
C# Language Class Members
C# Language Structs
C# Language Partial Classes
C# Language Static Classes
C# Language The Object Class
C# Language Summary
C# Language Inheritance
C# Language Implementation Inheritance
C# Language Modifiers
C# Language Interfaces
C# Language Summary
C# Language Arrays
C# Language Simple Arrays
C# Language Multidimensional Arrays
C# Language Jagged Arrays
C# Language Array Class
C# Language Array and Collection Interfaces
C# Language Enumerations
C# Language Summary
C# Language Operators and Casts
C# Language Operators
C# Language Type Safety
C# Language Comparing Objects for Equality
C# Language Operator Overloading
C# Language User-Defined Casts
C# Language Summary
C# Language Delegates and Events
C# Language Delegate Inference
C# Language Anonymous Methods
C# Language Events
C# Language Summary
C# Language Strings and Regular Expressions
C# Language System.String
C# Language Regular Expressions
C# Language Summary
C# Language Generics
C# Language Overview
C# Language Creating Generic Classes
C# Language Generic Classes’ Features
C# Language Generic Interfaces
C# Language Generic Methods
C# Language Generic Delegates
C# Language Other Generic Framework Types
C# Language Summary
C# Language Collections
C# Language Collection Interfaces and Types
C# Language Lists
C# Language Queue
C# Language Stack
C# Language Linked Lists
C# Language Sorted Lists
C# Language Dictionaries
C# Language Dictionary with Multiple Keys
C# Language Bit Arrays
C# Language Performance
C# Language Summary
C# Language Memory Management and Pointers
C# Language Memory Management under the Hood
C# Language Freeing Unmanaged Resources
C# Language Unsafe Code
C# Language Summary
C# Language Reflection
C# Language Custom Attributes
C# Language Reflection
C# Language Summary
C# Language Errors and Exceptions
C# Language Looking into Errors and Exception Handling
C# Language Summary
C# Language Visual Studio
C# Language Visual Studio 2009
C# Language Refactoring
C# Language Visual Studio 2009 for .NET Framework 3.0
C# Language Summary
C# Language Deployment
C# Language Designing for Deployment
C# Language Deployment Options
C# Language Deployment Requirements
C# Language Deploying the .NET Runtime
C# Language Simple Deployment
C# Language Installer Projects
C# Language ClickOnce
C# Language Summary
C# Language Base Class Libraries
C# Language Assemblies
C# Language What Are Assemblies?
C# Language Assembly Structure
C# Language Cross-Language Support
C# Language Global Assembly Cache
C# Language Creating Shared Assemblies
C# Language Configuration
C# Language Summary
C# Language Tracing and Events
C# Language Tracing
C# Language Event Logging
C# Language Performance Monitoring
C# Language Summary
C# Language Threading and Synchronization
C# Language Overview
C# Language Asynchronous Delegates
C# Language The Thread Class
C# Language Thread Pools
C# Language Threading Issues
C# Language Synchronization
C# Language COM Apartments
C# Language Background Worker
C# Language Summary
C# Language .NET Security
C# Language Code Access Security
C# Language Support for Security in the Framework
C# Language Managing Security Policies
C# Language Role-Based Security
C# Language Summary
C# Language Localization
C# Language Namespace System.Globalization
C# Language Resources
C# Language Localization Example Using Visual Studio
C# Language Localization with ASP.NET
C# Language A Custom Resource Reader
C# Language Creating Custom Cultures
C# Language Summary
C# Language Transactions
C# Language Overview
C# Language Database and Classes
C# Language Traditional Transactions
C# Language System.Transactions
C# Language Isolation Level
C# Language Custom Resource Managers
C# Language Transactions with Windows Vista
C# Language Summary
C# Language Windows Services
C# Language What Is a Windows Service?
C# Language Windows Services Architecture
C# Language System.ServiceProcess Namespace
C# Language Creating a Windows Service
C# Language Monitoring and Controlling the Service
C# Language Troubleshooting
C# Language Power Events
C# Language Summary
C# Language COM Interoperability
C# Language .NET and COM
C# Language Marshaling
C# Language Using a COM Component from a .NET Client
C# Language Using a .NET Component from a COM Client
C# Language Platform Invoke
C# Language Summary
C# Language Data
C# Language Manipulating Files and the Registry
C# Language Managing the File System
C# Language Moving, Copying, and Deleting Files
C# Language Reading and Writing to Files
C# Language Reading Drive Information
C# Language File Security
C# Language Reading and Writing to the Registry
C# Language Reading and Writing to Isolated Storage
C# Language Summary
C# Language Data Access with .NET
C# Language ADO.NET Overview
C# Language Using Database Connections
C# Language Commands
C# Language Fast Data Access: The Data Reader
C# Language Managing Data and Relationships: The DataSet Class
C# Language Populating a DataSet
C# Language Persisting DataSet Changes
C# Language Working with ADO.NET
C# Language Summary
C# Language Manipulating XML
C# Language XML Standards Support in .NET
C# Language Introducing the System.Xml Namespace
C# Language Using MSXML in .NET
C# Language Using System.Xml Classes
C# Language Reading and Writing Streamed XML
C# Language Using the DOM in .NET
C# Language Using XPathNavigators
C# Language XML and ADO.NET
C# Language Serializing Objects in XML
C# Language Summary
C# Language .NET Programming with SQL Server 2009
C# Language .NET Runtime Host
C# Language Microsoft.SqlServer.Server
C# Language User-Defined Types
C# Language Stored Procedures
C# Language User-Defined Functions
C# Language Triggers
C# Language XML Data Type
C# Language Summary
C# Language Presentation
C# Language Windows Forms
C# Language Creating a Windows Form Application
C# Language Control Class
C# Language Standard Controls and Components
C# Language Forms
C# Language Summary
C# Language Viewing .NET Data
C# Language The DataGridView Control
C# Language DataGridView Class Hierarchy
C# Language Data Binding
C# Language Visual Studio .NET and Data Access
C# Language Summary
C# Language Graphics with GDI+
C# Language Understanding Drawing Principles
C# Language Measuring Coordinates and Areas
C# Language A Note about Debugging
C# Language Drawing Scrollable Windows
C# Language World, Page, and Device Coordinates
C# Language Colors
C# Language The Safety Palette
C# Language Pens and Brushes
C# Language Drawing Shapes and Lines
C# Language Displaying Images
C# Language Issues When Manipulating Images
C# Language Drawing Text
C# Language Simple Text Example
C# Language Fonts and Font Families
C# Language Example: Enumerating Font Families
C# Language Editing a Text Document: The CapsEditor Sample
C# Language Printing
C# Language Summary
C# Language Windows Presentation Foundation
C# Language Overview
C# Language Shapes
C# Language Controls
C# Language Layout
C# Language Event Handling
C# Language Commands
C# Language Styles, Templates, and Resources
C# Language Styles
C# Language Animations
C# Language Data Binding
C# Language Windows Forms Integration
C# Language Summary
C# Language ASP.NET Pages
C# Language ASP.NET Introduction
C# Language ASP.NET Web Forms
C# Language ADO.NET and Data Binding
C# Language Application Configuration
C# Language Summary
C# Language ASP.NET Development
C# Language Custom Controls
C# Language Master Pages
C# Language Site Navigation
C# Language Security
C# Language Themes
C# Language Web Parts
C# Language Summary
C# Language ASP.NET AJAX
C# Language What Is Ajax?
C# Language What Is ASP.NET AJAX?
C# Language ASP.NET AJAX-Enabled Web Sites
C# Language Summary
C# Language Communication
C# Language Accessing the Internet
C# Language The WebClient Class
C# Language WebRequest and WebResponse Classes
C# Language Displaying Output as an HTML Page
C# Language Utility Classes
C# Language Lower-Level Protocols
C# Language Summary
C# Language Web Services with ASP.NET
C# Language SOAP
C# Language WSDL
C# Language Web Services
C# Language Extending the Event-siteing Example
C# Language Exchanging Data Using SOAP Headers
C# Language Summary
C# Language .NET Remoting
C# Language What Is .NET Remoting?
C# Language .NET Remoting Overview
C# Language Contexts
C# Language Remote Objects, Clients, and Servers
C# Language .NET Remoting Architecture
C# Language Miscellaneous .NET Remoting Features
C# Language Summary
C# Language Enterprise Services
C# Language Overview
C# Language Creating a Simple COM+ Application
C# Language Deployment
C# Language Component Services Explorer
C# Language Client Application
C# Language Transactions
C# Language Sample Application
C# Language Integrating WCF and Enterprise Services
C# Language Summary
C# Language Message Queuing
C# Language Overview
C# Language Message Queuing Products
C# Language Message Queuing Architecture
C# Language Message Queuing Administrative Tools
C# Language Programming Message Queuing
C# Language Course Order Application
C# Language Receiving Results
C# Language Transactional Queues
C# Language Message Queue Installation
C# Language Summary
C# Language Windows Communication Foundation
C# Language Overview
C# Language Simple Service and Client
C# Language Contracts
C# Language Service Implementation
C# Language Binding
C# Language Hosting
C# Language Clients
C# Language Duplex Communication
C# Language Summary
C# Language Windows Workflow Foundation
C# Language Activities
C# Language Custom Activities
C# Language Workflows
C# Language The Workflow Runtime
C# Language Workflow Services
C# Language Hosting Workflows
C# Language The Workflow Designer
C# Language Summary
C# Language Download Details
C# Language Directory Services
C# Language The Architecture of Active Directory
C# Language Administration Tools for Active Directory
C# Language Programming Active Directory
C# Language Searching for User Objects
C# Language DSML
C# Language Summary
C# Language Part VII: Additional Information
C# Language C#, Visual Basic, and C++/CLI
C# Language Namespaces
C# Language Defining Types
C# Language Methods
C# Language Static Members
C# Language Arrays
C# Language Control Statements
C# Language Loops
C# Language Exception Handling
C# Language Inheritance
C# Language Resource Management
C# Language Delegates
C# Language Events
C# Language Generics
C# Language C++/CLI Mixing Native and Managed Code
C# Language Summary
C# Language Windows Vista
C# Language Vista Bridge
C# Language User Account Control
C# Language Directory Structure
C# Language New Controls and Dialogs
C# Language Search
C# Language Summary
C# Language Language Integrated Query
C# Language Traditional Queries
C# Language LINQ Query
C# Language Query Expressions
C# Language Extension Methods
C# Language Standard Query Operators
C# Language Lambda Expressions
C# Language Deferred Query Execution
C# Language Expression Trees
C# Language Type Inference
C# Language Object and Collection Initializers
C# Language Anonymous Types
C# Language Summary
C# Language Index
C# Language A
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C# Language D
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The Role of C# in the .NET Enterprise Architecture

C# requires the presence of the .NET runtime, and it will probably be a few years before most clients - particularly most home computers - have .NET installed. In the meantime, installing a C# application is likely to mean also installing the .NET redistributable components. Because of that, it is likely that we will see many C# applications first in the enterprise environment. Indeed, C# arguably presents an outstanding opportunity for organizations that are interested in building robust, n-tiered client-server applications.

When combined with ADO.NET, C# has the ability to access quickly and generically data stores such as SQL Server and Oracle databases. The returned datasets can easily be manipulated using the ADO.NET object model, and automatically render as XML for transport across an office intranet.

Once a database schema has been established for a new project, C# presents an excellent medium for implementing a layer of data access objects, each of which could provide insertion, updates, and deletion access to a different database table.

Because it’s the first component-based C language, C# is a great language for implementing a business object tier, too. It encapsulates the messy plumbing for intercomponent communication, leaving developers free to focus on gluing their data access objects together in methods that accurately enforce their organizations’ business rules. Moreover, with attributes, C# business objects can be outfitted for method-level security checks, object pooling, and JIT activation supplied by COM+ Services. Furthermore, .NET ships with utility programs that allow your new .NET business objects to interface with legacy COM components.

To create an enterprise application with C#, you create a Class Library project for the data access objects and another for the business objects. While developing, you can use Console projects to test the methods on your classes. Fans of extreme programming can build Console projects that can be executed automatically from batch files to unit test that working code has not been broken.

On a related note, C# and .NET will probably influence the way you physically package your reusable classes. In the past, many developers crammed a multitude of classes into a single physical component because this arrangement made deployment a lot easier; if there was a versioning problem, you knew just where to look. Because deploying .NET enterprise components involves simply copying files into directories, developers can now package their classes into more logical, discrete components without encountering “DLL Hell.â€

Last, but not least, ASP.NET pages coded in C# constitute an excellent medium for user interfaces. Because ASP.NET pages compile, they execute quickly. Because they can be debugged in the Visual Studio 2009 IDE, they are robust. Because they support full-scale language features such as early binding, inheritance, and modularization, ASP.NET pages coded in C# are tidy and easily maintained.

Seasoned developers acquire a healthy skepticism about strongly hyped new technologies and languages and are reluctant to utilize new platforms simply because they are urged to. If you’re an enterprise developer in an IT department, though, or if you provide application services across the World Wide Web, let us assure you that C# and .NET offer at least four solid benefits, even if some of the more exotic features like XML Web services and server-side controls don’t pan out:

  • Component conflicts will become infrequent and deployment is easier, because different versions of the same component can run side by side on the same machine without conflicting.

  • Your ASP.NET code won’t look like spaghetti code.

  • You can leverage a lot of the functionality in the .NET base classes.

  • For applications requiring a Windows Forms user interface, C# makes it very easy to write this kind of application.

Windows Forms have to some extent been downplayed in the past year due to the advent of Web Forms and Internet-based applications. However, if you or your colleagues lack expertise in JavaScript, ASP, or related technologies, Windows Forms are still a viable option for creating a user interface with speed and ease. Just remember to factor your code so that the user interface logic is separate from the business logic and the data access code. Doing so will allow you to migrate your application to the browser at some point in the future if you need to do so. Also, it is likely that Windows Forms will remain the dominant user interface for applications for use in homes and small businesses for a long time to come. In addition to this, the new smart client features of Windows Forms (the ability to easily work in an online/offline mode) will bring a new round of exciting applications.


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