What is .NET Framework?

.NET Framework

• The Microsoft .Net Framework is a platform that provides tools and technologies for develop Web Applications, Windows Application and Network Application.
• The main two components of .Net Framework
  • CLR – Common Language Runtime
  • BCL – Base Class Library OR Framework Class Library (FCL)

Webforms , Windforms, Services

DATA, ADO.NET

Base Class Library

Common Language Runtime

.NET Framework Diagram

CLR – Common Language Runtime

•  CLR is the Foundation of the .NET Framework.
• CLR is the Heart of the .NET Framework.
• The Common Language Runtime (CLR) is an Execution Environment.
• The main function of Common Language Runtime (CLR) is to convert the Managed Code into Native code and then execute the Program.
• The Common Language Runtime (CLR) uses Just In Time (JIT) compiler to converts Intermediate Language (MSIL) to Native code/ Machine code on demand at application run time.
• The Common Language Runtime (CLR) environment is also called a managed environment, because all managed code runs inside the environment of CLR.
•  CLR manages the code at the time of execution.

Functionality of CLR During the execution of the program.

• Memory management
• Thread management
• Security management
• Garbage Collection (GC)

BCL – Base Class Library

• BCL provide the fundamental building blocks for any application you develop, Web application or Windows application.

• The .NET framework provides a set of base class libraries which provide functions and features which can be used with any programming language which implements .NET, such as Visual Basic, C# (or course), Visual C++, etc.

 Base Class Library Namespace
- System.Data – Is the namespace for ADO.NET
- System.IO      - Provides connection to file system and the reading and writing data.
- System.Net   - Provides access to network protocols such as SSL, HTTP, SMTP and FTP
- System.Text – Provides the StringBuilder class, String Function
- System.Drawing – Provide graphics support