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Introduction to .NET

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Lorenzo Dematt¨¦
Lorenzo Dematt¨¦

.NET is a software framework and platform developed by Microsoft that runs primarily on Microsoft Windows. It includes a large class library called Framework Class Library (FCL) and provides language interoperability across several programming languages. Some key aspects include the Common Language Runtime (CLR) which handles memory management, exception handling and security, and supports languages like C#, Visual Basic .NET and F#. The .NET Framework also includes APIs for building Windows-based applications, web applications and web services.

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Introduction to .NET Lorenzo Dematt¨¦ @ldematte
What is .NET? Not different from asking: what is Java? .NET, XP, 2000¡­ oh my! A Framework Execution environment (CLR) Support libraries (BCL) Languages (C#, VB, F#)
.NET is also A platform, an ¡°ecosystem¡± Both MS and others Tools (VS), libraries, open source projects (Nunit, EF) And also, for some parts, a specification /standard CLI, C#
.NET Framework C# C++/CLI VB.NET F# PLINQ TPL EF LINQ ADO.NET WPF WCF WF BCL VS CLR (Jitter, VM, Loader, GC, Debugging¡­) Host: OS, Hardware, Exe (SQL, IIS)
History 1.0, 1.1 Winforms, C# 1, ASP.NET, ADO.NET 2.0 Generics, C# 2 (latest CLR) 3.0 ¨C ¡°WinFX¡± WPF, WCF, WF 3.5 LINQ, C# 3 (lambda, extension methods) 4.0 ParallelFX, C# 4 (dynamic) 4.5 Metro, C# 5 (async)
.NET Framework (history) PLINQ TPL F# EF LINQ ADO.NE T WPF WCF WF C++/CLI BCL VB.NET CLR (Jitter, VM, Loader, GC, Debugging¡­) C#
Introduction to .NET
Core concepts Managed Garbage collection Introspection (self-description) Virtual machine JIT Verification and optimization Components Assembly Bytecode + Metadata
Where? Windows Linux, MacOSX Mono, MonoMAC Embedded Windows CE, Windows Phone Micro Netduino
Outside MS: Languages
Outside MS: Libraries
From source to execution: languages Compilation csc /out:test.exe test.cs mcs test.cs --out:test2.exe Execution .test.exe mono test.exe Multiple languages csc /t:library /out:testLib.dll testLib.cs fsc test.fs /r:testLibrary.dll
From source to execution Assembly: MSIL + Metadata Load assembly Plus dependencies ¡°Fusion¡± JIT
From source to execution Assembly (dll) F# source MSIL Assembly (exe) C# source MSIL Main Func ASM Main Greet Func GreetAll Func CLR (Jitter, VM, Loader, GC, Debugging¡­)
An example: Hello World

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Introduction to .NET

  • 1. Introduction to .NET Lorenzo Dematt¨¦ @ldematte
  • 2. What is .NET? Not different from asking: what is Java? .NET, XP, 2000¡­ oh my! A Framework Execution environment (CLR) Support libraries (BCL) Languages (C#, VB, F#)
  • 3. .NET is also A platform, an ¡°ecosystem¡± Both MS and others Tools (VS), libraries, open source projects (Nunit, EF) And also, for some parts, a specification /standard CLI, C#
  • 4. .NET Framework C# C++/CLI VB.NET F# PLINQ TPL EF LINQ ADO.NET WPF WCF WF BCL VS CLR (Jitter, VM, Loader, GC, Debugging¡­) Host: OS, Hardware, Exe (SQL, IIS)
  • 5. History 1.0, 1.1 Winforms, C# 1, ASP.NET, ADO.NET 2.0 Generics, C# 2 (latest CLR) 3.0 ¨C ¡°WinFX¡± WPF, WCF, WF 3.5 LINQ, C# 3 (lambda, extension methods) 4.0 ParallelFX, C# 4 (dynamic) 4.5 Metro, C# 5 (async)
  • 6. .NET Framework (history) PLINQ TPL F# EF LINQ ADO.NE T WPF WCF WF C++/CLI BCL VB.NET CLR (Jitter, VM, Loader, GC, Debugging¡­) C#
  • 8. Core concepts Managed Garbage collection Introspection (self-description) Virtual machine JIT Verification and optimization Components Assembly Bytecode + Metadata
  • 9. Where? Windows Linux, MacOSX Mono, MonoMAC Embedded Windows CE, Windows Phone Micro Netduino
  • 12. From source to execution: languages Compilation csc /out:test.exe test.cs mcs test.cs --out:test2.exe Execution .test.exe mono test.exe Multiple languages csc /t:library /out:testLib.dll testLib.cs fsc test.fs /r:testLibrary.dll
  • 13. From source to execution Assembly: MSIL + Metadata Load assembly Plus dependencies ¡°Fusion¡± JIT
  • 14. From source to execution Assembly (dll) F# source MSIL Assembly (exe) C# source MSIL Main Func ASM Main Greet Func GreetAll Func CLR (Jitter, VM, Loader, GC, Debugging¡­)