1. Introduction C#
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2. Pitfalls of C/C++
Difficult for beginners to learn
Cannot test code until it is compiled
Difficult to debug without expensive debugging tools
Takes longer time to develop
Database connectivity is complicated
Problems in modification of data
Difficulty in implementation
Do not contain any framework

3. Need for a New Language
Simple, powerful tool for building interoperable, scalable, robust
applications.
Complete object-oriented architecture powerful component-oriented
development
Allow access to many features previously available only in C++
Familiarity to programmers coming from C or C++
Write application target both desktop and mobile.

4. Purpose of C#
.NET Framework is a massive expandable library.
C# is a high level language which let programmers focus on the main
problem rather than dealing with things like portability, serialization
…
C# provides a simple, efficient, productive, object-oriented language.

5. Why .NET?
Application architecture has changed.
INTERNET world
Compete JAVA

6. Why .NET?
Bill toilet

7. .Net Framework
Language-neutral component library
Code Modules
Organized
Specialized
Execution environment
CTS
CLR
Provide consistent object-oriented programming environment
Minimize software deployment and versioning conflicts by providing a code-
execution environment
Promote safe execution of code by providing a code-execution environment
Provides a consistent developer experience across varying types of
application such as Window-based app and Web-based app.

8. .Net Framework Components
Common Language Runtime (CLR)
Memory management
Code execution
Error handling
Code safety verification
Garbage collection
.NET Framework Class Library (FCL)
comprehensive object-oriented collection of reusable type.

9. Architecture of .NET Framework

10. Other components of .NET Framework

11. Other components of .NET Framework
Common Language Specification (CLS)
set of rules that any .NET language should follow to create
application that are interoperable with other languages
Common Type System (CTS)
describes how data types are declared

12. Microsoft Intermediate Language (MSIL)
The code written in a .NET compatible language is compiled, the
output code is in the form of MSIL.
MSIL is composed of a specific set of instructions that indicate how
the code should be executed

13. Common Language Runtime (CLR)
When a code is executed for the first time, the MSIL code is
converted to a code native to the operating system. This is done at
runtime by the Just-In-Time (JIT) compiler in CLR.
CLR is virtual machine component that is used to convert the MSIL
code to the machine language code.

14. Basic features of C#
Object-oriented
Type-safety Checking
| Uninitialized variables cannot be used.
Garbage Collection
Standardization by ECMA (European Computer Manufacturers)
Generic Types and Methods

15. Applications of C#
Gaming applications
Large-scale enterprise applications
Mobile applications for pocket PCs, PDAs and cell phones
Simple standalone desktop applications such as Library Management
Complex distributed applications

16. Advantages of C#
Cross Language Support
Common Internet Protocols
XML, SOAP
Simple Deployment
A assembly is self-describing collection of code and
resource
XML Documentation
Comments can be place in XML format and then used to
document the code.

17. Memory Management
In C, C++, the allocation and de-allocation of memory is done
manually. It is time-consuming and difficult.
The C# language provides the feature of allocating and releasing
memory using automatic memory management.
No need to write code to allocate or to release memory.
Increase the code quality and enhances the performance and the
productivity.

18. Garbage Collection
Automatic memory management is done with the help of a garbage
collector
Garbage collection is the automatic reclaiming of memory from
objects that are no longer in scope.
Two steps:
- Determine which obj
will not be access in the future.
- Reclaim the storage used by those.

19. Visual Studio 2010
Visual Studio 2010 Ultimate
Visual Studio 2010 Premium
Visual Studio 2010 Professional
Visual Studio 2010 Express Products
Visual Studio Team Foundation Server 2010

20. Visual Studio 2010 Comparison