This document outlines the schedule and goals for a class on Microsoft .NET fundamentals. The class will meet on November 6, 13, 20 and possibly other dates in November and December. It will cover introductions, an overview of .NET and C#, exercises, assignments, and a final exam. The goals are to provide an overview of major .NET components and understand .NET as an object-oriented environment while working with CLR, FCL, assemblies and C#. Grades will be based on assignments and a final exam. Prerequisites include a fundamentals of programming course.

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SynapseIndia Fundamentals of Dotnet
Development

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Class Schedule – November 6, 2003
 Introductions and other beginning stuff…
 Review Class Syllabus / Class Goals
 Class Dates
 Introduction to .NET
 Introduction to C#
 Class Exercise(s)
 Homework Assignment

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.Net Fundamentals
CT-186

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Text Books
 Applied .NET Framework Programming by
Jeffrey Richter
 Programming C# by Jessie Liberty

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Grades
 5 take-home assignments (75%)
 Final Exam (part of last class) (25%)

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Prerequisites
Fundamental of Programming (CT100)
or
by permission of the instructor.

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Class Goals

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Class Goals
 Provide an overview of the .NET Architecture with
Major Components
- Programming Languages
- ADO.NET
- ASP.NET
- Web Services
- XML Integration

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Class Goals
Understand the .NET Frameworks as an Object Oriented
Strongly Typed Computing Environment

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Class Goals
 Work with various .NET Framework components
- Common Language Runtime (CLR)
- .NET Framework Class Library (FCL)
- Assemblies
- Strong Names
- The Global Assembly Cache (GAC)
- Using the GACUTIL

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Class Goals
Introduction to the C# Programming Language

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Course Schedule
Week Topics
1 Introduction to .NET Framework, C#
2 Basic C# Windows Forms Programming
3 Types, Objects, and Classes in .NET
4 .NET ADO and XML
5 Exceptions, Intro to ASP.NET, Assemblies
6 Web Services, Final Exam

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Class Dates
 Class Dates ( 6, 7, or 8 classes ?)
 November 6, 13, 20 – December 4, 11, 18
 November 27, Thanksgiving, no class
 Other possible dates:
- Monday November 24th
- Monday December 1st
- Monday December 8th or Tuesday December 9th
- Monday December 15th or Tuesday December 16th
- Or ?

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Effective Learning
 First is Doing
- Class exercises
 Coaching
 Helping each other
- Homework
 Second is Discussing
- Class discussions
 Asking questions
 Sharing ideas and information
 Last is Listening

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Learning Environment
 Learn something  Write some code
 Homework Assignments
Write some code
Programming is Fun!

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The only dumb questions
are the ones not asked!

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Time to Address Open Questions
 Begin each class with a time for questions
 Questions left open from previous classes
 Questions emailed to me during the week
 Questions triggered by the homework
 Or other ???

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Your introductions
 Programming background
- Operating systems, languages
- Any exposure to .NET ? Other courses ?
 What do you expect to get out of this course ?

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Please email me the following…
• Full Name, Nick Name, Student ID #
• Home Phone / Work Phone

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Email Address (s) [email gives me one]
 Your background in computing/programming
 Any experience with .NET, other courses, ?
 Your objective or goals for this course
 Any material you have a special interest in covering?
 Any issues or questions that you have?
 Additional dates you can attend classes on.

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What Is the Microsoft .NET
Framework?
The Microsoft® .NET Framework is an
important new component of the Microsoft
Windows® family of operating systems. It is
the foundation of the next generation of
Windows-based applications that are easier
to build, deploy, and integrate with other
networked systems.

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The .NET Initiative
“To create rich applications…, businesses must offer a
programmatic interface to their business logic services
… [which] must be callable remotely using a network
like the Internet. Simply stated, the .NET initiative is
about connecting information, people and devices”
- Jeff Richter

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What Is the Microsoft .NET
Framework?
Most consumers will never notice that the
.NET Framework is running on their Pocket
PC, smartphone, or desktop computer. But
they may appreciate the reliability, ease of
use, and ability to connect to other systems
that the .NET Framework helps bring to
computers.

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What Is the Microsoft .NET
Framework?
The .NET Framework helps software
developers and systems administrators more
easily build and maintain systems with
improvements toward performance, security,
and reliability. Here's how.

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A New Approach to Building
Windows Software
The .NET Framework simplifies Windows
software development. It provides developers
with a single approach to build both desktop
applications—sometimes called smart client
applications—and Web-based applications. It
also enables developers to use the same tools
and skills to develop software for a variety of
systems ranging from handheld smartphones
to large server installations.

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A New Approach to Building
Windows Software
Software built on the .NET Framework can
be easier to deploy and maintain than
conventional software. Applications can be
designed to automatically upgrade
themselves to the latest version. The .NET
Framework can also minimize conflicts
between applications by helping incompatible
software components coexist.

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Benefits of the .NET Framework
• Helps IT professionals better integrate
existing systems with its native support for
Web services.
• Assists with the deployment of software to
both users and Web servers.
• Facilitates the development of software with
improved reliability, scalability, performance,
and security.

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Helps developers be more
productive by:
• Making it easier for them to reuse existing
code.
• Enabling them to more easily integrate
components written in any of the more than
20 supported programming languages.
• Helping them more easily build software for
a wide range of devices using same skills
and tools.

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The Development Environment – Visual
Studio.NET
 Finally , Visual Studio truly becomes an
Integrated Development Environment, with
multi-language development.
 Runs on Windows 2000, NT, XP and the .NET
server family.
 Support for building 32 and 64 bit applications
 Usual gamut of wizards, debuggers, linkers…
 Plenty of good documentation
 Free .NET Framework SDK – compilers, tools,
documentation

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The Development/Runtime platform –
the .NET Framework
- The new runtime environment in .NET
- Provides a set of base classes for developers to build
on
- A unified type system to allow language inter-operability
- This course deals with the fundamentals of
programming this framework

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To summarize, .NET is…
 An OS platform
 The .NET Enterprise Servers.NET building block
services
 .NET Device Software
 The Development Environment – Visual
Studio.NET
 The Development/Runtime platform – the .NET
Framework

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The .NET Framework
 Think of what device drivers do in terms of
abstracting access by an application
Application
Windows
Scanner
Driver
Mouse
Driver

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The .NET Framework
 If we abstract the underlying OS in the same
way…
Application
.NET Framework
Windows
2000
Windows
XP
FreeBSD
UNIX

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The .NET Framework
 The .NET Framework introduces a layer of
abstraction (and obviously, some overhead) to the OS
as we currently know it.
 Is this reason enough to move to it ? Let’s look at the
state of Windows development without .NET…

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The current state of affairs
 Win32/C programming
- Fairly low-level, not object oriented, interoperability
with other languages is hard, memory leaks an issue.
 C++/MFC programming
- Large language, complex idioms, prone to abuse,
interoperability with other languages and other C++
implementations still hard, memory leaks still an issue
 Visual Basic programming
- Object aware, but not object oriented.
- Interop with other languages possible, but ugly.

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The current state of affairs
 COM programming
- Allows you cross language integration at the binary
level.
- Interface based programming encouraged
- Fairly complex to understand and set up
- Deployment is registry based, fairly fragile.
- Distributed COM was notoriously hard to set up
because of the security issues involved
- A Microsoft-only solution
 Java programming
- Great language, but no cross language integration.
- Interpreted byte-code did have performance issues

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The current state of affairs
 Into the mix just discussed, throw in JavaScript,
ASP, HTML, DHTML
 Everything we just talked about has it’s own
runtime engine/environment, it’s own set of
libraries and it’s own set of development tools.
 In a highly connected world, our solutions need
to span languages, machines and network
boundaries.

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What the .NET Framework gives us
 Consistent programming model
 A simple OO programming model
 Application component isolation
- Newer versions can be installed safely
- Goes a long way in helping improve DLL Hell
 Simplified installation model
- Xcopy, no registry entries
- Uninstalls involve just deleting files/folders
- Shared components easier to install than COM
components

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What the .NET Framework gives us
 Multi-platform support
- The fact that the OS is abstracted away, with code
compiled to an intermediate language makes this
possible
 Cross language integration
- This is in contrast with COM’s cross-language
interoperation. Types can be used between languages.
- This also makes cross language debugging possible.
 Automatic memory management
- Reduces the incidence of memory leaks . The Visual
Basic runtime has done this for sometime, but it is
now available to all languages

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What the .NET Framework gives us
 Code verifiability
- Rich type information gives us the ability to check that
code is operating safely
- e.g. Buffer overflows prevented.
 Consistent error handling mechanism
- Exceptions used instead of error codes and
HRESULTS
- Exceptions have to be handled – cannot ignore them
 Code security
- Signing allows the runtime to verify that code has not
been tampered with.
- Code access security associates permissions with code.

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Basic Components of the .NET
Framework
The .NET Framework consists of two main
parts:
• common language runtime
• .NET Framework class library

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The heart of the Framework
 The most important elements of the franework
are:
- The Common Language Runtime (CLR)
- The Framework Class Libraries (FCL)
ASP.NET WinForms
Framework Class Library
Base Data XML …
Common Language Runtime
OS Services

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Common Language Runtime
•Provides the common services for .NET
Framework applications.
•Programs can be written for the common
language runtime in just about every language,
including C, C++, C#, and Microsoft Visual
Basic®, as well as some older languages such
as Fortran.
•The runtime simplifies programming by
assisting with many mundane tasks of writing
code, including memory management—which
can be a big generator of bugs—security
management, and error handling.

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46
(CLR)
 Locates, loads and runs code written in runtime-aware
languages.
 Handles object creation, memory management,
making method calls, enforces code security and
provides a process abstraction.
 Code that targets the CLR is called managed code,
while code that uses the native OS services directly
is called unmanaged code.
 Languages that can produce managed code (or
.NET programming languages)
- C#, VB.NET, VC++ with managed extensions, Fujitsu
COBOL.NET, Jscript.NET, Eiffel, Python, Perl…

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Managed Module
A Managed Module is a standard windows portable
executable (PE) file that requires the CLR to execute.

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Managed Code
Code executed and managed by the Microsoft® .NET
Framework, specifically by the .NET Framework's
common language runtime.
Managed code must supply the information necessary
for the common language runtime to provide services
such as memory management, cross-language
integration, code access security, and automatic
lifetime control of objects.
All code based on Microsoft Intermediate Language
executes as managed code.

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.NET Framework Class Library
The library includes prepackaged sets of
functionality that developers can use to more
rapidly extend the capabilities of their own
software. The library includes three key
components:
• o ASP.NET to help build Web applications and
Web services.
• o Windows Forms to facilitate smart client user
interface development.
• o ADO.NET to help connect applications to
databases.

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Framework Class Library (FCL)
 Provides base class libraries available to all .NET
programming languages.
 Access to primitive types, file I/O, graphical
rendering, crypto, GUI, XML support, etc.
Think of the CLR as abstracting the underlying OS (e.g.
Windows), and the FCL as abstracting the OS
libraries. (e.g. Win32)