Download Materi Pemrograman .NET

•           .NET – What Is It?

•           Software platform

•           Language neutral

•           In other words:

   .NET is not a language (Runtime and a library for writing and executing written programs in any compliant language)

•           What Is .NET

•           .Net is a new framework for developing web-based and windows-based applications within the Microsoft environment.

•           The framework offers a fundamental shift in Microsoft strategy: it moves application development from client-centric to server-centric.

•           .NET – What Is It?

•          Framework, Languages, And Tools

•           The .NET Framework
.NET Framework Services

•           Common Language Runtime

•           Windows^®Forms

•           ASP.NET

–      Web Forms

–      Web Services

•           ADO.NET, evolution of ADO

•           Visual Studio.NET

•           Common Language Runtime (CLR)

•CLR works like a virtual machine in executing all languages. 

•All .NET languages must obey the rules and standards imposed by CLR. Examples:

–         Object declaration, creation and use

–         Data types,language libraries

–         Error and exception handling

–         Interactive Development Environment (IDE)

•           Common Language Runtime

•                    Development

–              Mixed language applications

•                   Common Language Specification (CLS)

•                   Common Type System (CTS)

•                   Standard class framework

•                   Automatic memory management

–              Consistent error handling and safer execution

–              Potentially multi-platform

•                    Deployment  

–              Removal of registration dependency

–              Safety – fewer versioning problems

•           Common Language Runtime
Multiple Language Support

•           Compilation in .NET

•           Intermediate Language (IL)

•             .NET languages are not compiled to machine code.  They are compiled to an Intermediate Language (IL).

•             CLR accepts the IL code and recompiles it to machine code.  The recompilation is just-in-time (JIT) meaning it is done as soon as a function or subroutine is called.

•             The JIT code stays in memory for subsequent calls.  In cases where there is not enough memory it is discarded thus making JIT process interpretive.

•           Languages

•                     Languages provided by MS

–               VB, C++, C#, J#, JScript

•                     Third-parties are building

–               APL, COBOL, Pascal, Eiffel, Haskell, ML, Oberon, Perl, Python, Scheme, Smalltalk…

•           ASP.NET

•ASP.NET,the platform services that allow to program Web Applications and Web Services in any .NET language

•ASP.NET Uses .NET languages to generate HTML pages. HTML page is targeted to the capabilities of the requesting Browser

•ASP.NET “Program” is compiled into a .NET class and cached the first time it is called.  All subsequent calls use the cached version.

•           ASP.NET Web Forms

•           Allows clean cut code

–      Code-behind Web Forms

•           Easier for tools to generate

•           Code within is compiled then executed

•           Improved handling of state information

•           Support for ASP.NET server controls

–      Data validation

–      Data bound grids

•           ASP.NET Web Services

•           A technical definition

–      “A programmable application component accessible via standard Web protocols”

•           Visual Studio.NET

•           Development tool that contains a rich set of productivity and debugging features

•           .NET – Hierarchy, Another View

•           Summary

•           The .NET Framework

–      Dramatically simplifies development and deployment

–      Provides robust and secure execution environment

–      Supports multiple programming languages

•           Comparison between
J2EE and .NET

•           J2EE and .NET

Execution Engine

Ø  J2EE

            Java source code compiles into machine-independent byte code

            Runtime Environment : JVM

Ø  .NET

            Any compliant language compiles into MSIL

            Runtime environment : CLR

     Both JVM and CLR ,support services, such as code verification, memory management via garbage collection, and code security

•           J2EE and .NET

Cross Platform Portability

Ø  J2EE

            Platform Independent

            JDK should exist on target machine

Ø  .NET

            Supports Windows platform

            CLR should exist on target machine

            Can support other platforms provided it has its own JIT       complier

    

•           J2EE and .NET

Language Support

Ø  J2EE

            Tied to Java

            Supports other languages via interface technology

Ø  .NET

            Language independent

            Supports any language if mapping  exists from that

                language  to IL

•           J2EE and .NET

Tools Support

Ø  J2EE

            Can employ any number of tools

            Pro    :Developer has a great deal of choice

            Con   :Difficulty in choosing a right tool for a given job

Ø  .NET

            Visual Studio.NET, single IDE for building an application