Net framework

The Microsoft ® .NET Framework Presented by Joseph J. Sarna Jr., MCSD JJS Systems, LLC

Agenda Introduction to .NET and Web Services The .NET Framework Common Language Runtime .NET Framework Services Common Language Specification .NET Development Tools

How Did We Get to .NET? The Evolution of Web Applications First generation of Web applications -non-interactive content (HTML static content) Second generation of Web applications - scalable back-end and a richer User Interface. (DCOM, ASP, CGI, Cold Fusion, dynamic content) Third generation of Web applications (.NET) - using Web protocols and XML to allow better integration between services on the Web

What is .NET? .NET is Microsoft’s entry into the Web services arena XML based

Why the Move to .NET? DCOM works fine on an Intranet, however: DCOM does not go through firewalls Requires too many open TCP/IP ports Requires Stateful connections Platform dependent Portals provide services however: Non-standard interfaces Hard to integrate with other applications Not designed to use outside the scope of the portal

What Is A Web Service? A programmable application, accessible as a component via standard Web protocols Defined in terms of the required formats and ordering of messages You can ask a site for a description of the Web Services it offers Web Service consumers can be any device - send and receive messages using XML All built using open Internet protocols

XML Is The Core Simple, open, broadly adopted Continues the Web’s open standards Enables powerful distributed apps A universal data exchange format

XML Format XML is a tagged mark-up representation of data XML consists of a header section, a schema section, and a data section The header section defines the XML form itself The schema section defines the format of the data contained in the XML document The data section provides the mapped data C:\SicCodes.XML

SOAP Simple Object Access Protocol Internet becomes integration fabric Broad industry support IBM, Iona, Ariba, Compaq, Lotus, Commerce-One, HP, SAP, others Submitted to W3C: http://www.w3.org/TR/SOAP/ XML-based integration for web services

Benefits of Web Services Leverages exiting infrastructure Allows the choice to buy or build the functionality Use of tested standard modules for repeatability Minimizes development time and cost Allows integration between applications, platforms, businesses

What Is the .NET Framework? A collection of technologies that Unite isolated Web applications Make information available anytime, anywhere Simplify development and deployment How does .NET achieve the above? Web Services ADO.NET Datasets and XML support throughout the platform Rich tools, runtime services and XCOPY Deployment

.NET Framework, Languages, Tools Base Class Library Common Language Specification Common Language Runtime Data and XML VB C++ C# Visual Studio.NET Web Services JScript … User Interface

Common Language Runtime Base Class Library Common Language Specification Common Language Runtime Data and XML VB C++ C# Visual Studio.NET Web Services JScript … User Interface

The .NET Common Language Runtime Manages running code Threading Memory management Multi-language Inheritance, Errors, Debugging Fine-grained evidence-based security Code access security Role-based security Integrated with underlying OS “No-touch” deployment

Common Language Runtime Class Loader Base Class Library Support IL to Native Compilers Code Manager Garbage Collector Security Engine Debug Engine Type Checker Exception Manager Thread Support COM Marshaler

Common Language Runtime Design Goals Dramatically simplify application development Provide a robust and secure execution environment Support multiple programming languages Simplify deployment and management

.NET Framework Services Base Class Library Common Language Specification Common Language Runtime Data and XML VB C++ C# Visual Studio.NET Web Services JScript … User Interface

.NET Framework Services ASP.NET Logical evolution of ASP (compiled) Web forms Manageable code (non spaghetti) Windows ® forms Framework for building rich clients ADO.NET, evolution of ADO New objects (e.g., DataSets) XML Support Throughout

Some .NET Base Class Libraries System System.Data System.Xml System.Web Globalization Diagnostics Configuration Collections Resources Reflection Net IO Threading Text ServiceProcess Security Design ADO SQLTypes SQL XPath XSLT Runtime InteropServices Remoting Serialization Serialization Configuration SessionState Caching Security Services Description Discovery Protocols UI HtmlControls WebControls System.Drawing Imaging Drawing2D Text Printing System.WinForms Design ComponentModel

Common Language Specification Base Class Library Common Language Specification Common Language Runtime Data and XML VB C++ C# Visual Studio.NET Web Services JScript … User Interface

Common Language Specification What about types? Common type system (CTS) Other languages and compilers Common Language Specification (CLS)

.NET Languages The .NET Platform is Language Neutral All .NET languages perform the same You can leverage your existing skills Common Language Specification Consumer: Can use the .NET Framework Extender: Can extend the .NET Framework Microsoft provides: VB, C++, C#, JScript Third-parties are building APL, COBOL, Pascal, Eiffel, Haskell, ML, Oberon, Perl, Python, Scheme, Smalltalk

.NET Languages Available (or soon to be) Visual Basic C# Jscript C++ Perl Python COBOL Haskell ML Ada Pascal C SmallTalk Oberon Scheme Mercury APL Eiffel Oz Objective Caml

Agenda Introduction to .NET and Web Services The .NET Framework Common Language Runtime .NET Framework Services Common Language Specification . NET Development Tools

.NET Development Tools Base Class Library Common Language Specification Common Language Runtime Data and XML VB C++ C# Visual Studio.NET Web Services JScript … User Interface

Visual Studio ® .NET .NET Platform Manage and Collaborate Deployment Testing Development Design Analysis Planning

Summary We covered: Introduction to .NET and Web Services The .NET Framework Common Language Runtime .NET Framework Services Common Language Specification .NET Development Tools

Resources for .NET http://www.w3.org/ TR /SOAP/ - W3C standards for SOAP implementation http://www. uddi .org – UDDI standards for web services implementation http://www.microsoft.com/net - Microsoft .NET home http://msdn.microsoft.com/net - Microsoft .NET developers home http:// msdn . microsoft .com/ xml - Microsoft XML developers home http:// msdn . microsoft .com/ webservices – Microsoft Web Services developers home http://www. gotdotnet .com – Developers .NET resource

Net framework

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