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Net framework

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  • 1. The Microsoft® .NET Framework Presented by Joseph J. Sarna Jr., MCSD JJS Systems, LLC
  • 2. Agenda• Introduction to .NET and Web Services• The .NET Framework• Common Language Runtime• .NET Framework Services• Common Language Specification• .NET Development Tools
  • 3. 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
  • 4. What is .NET?• .NET is Microsoft’s entry into the Web services arena• XML based
  • 5. 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
  • 6. 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
  • 7. XML Is The Core• Simple, open, broadly adopted• Continues the Web’s open standards• Enables powerful distributed apps• A universal data exchange format
  • 8. 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
  • 9. SOAPSimple 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
  • 10. 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
  • 11. Agenda• Introduction to .NET and Web Services• The .NET Framework• Common Language Runtime• .NET Framework Services• Common Language Specification• .NET Development Tools
  • 12. 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
  • 13. .NET Framework, Languages, Tools VB C++ C# JScript … Common Language Specification Visual Studio.NET Web User Services Interface Data and XML Base Class Library Common Language Runtime
  • 14. Agenda• Introduction to .NET and Web Services• The .NET Framework• Common Language Runtime• .NET Framework Services• Common Language Specification• .NET Development Tools
  • 15. Common Language Runtime VB C++ C# JScript … Common Language Specification Visual Studio.NET Web User Services Interface Data and XML Base Class Library Common Language Runtime
  • 16. 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
  • 17. Common Language Runtime Base Class Library Support Thread Support COM Marshaler Type Checker Exception Manager Security Engine Debug Engine IL to Native Code Garbage Compilers Manager Collector Class Loader
  • 18. Common Language Runtime Design Goals• Dramatically simplify application development• Provide a robust and secure execution environment• Support multiple programming languages• Simplify deployment and management
  • 19. Agenda• Introduction to .NET and Web Services• The .NET Framework• Common Language Runtime• .NET Framework Services• Common Language Specification• .NET Development Tools
  • 20. .NET Framework Services VB C++ C# JScript … Common Language Specification Visual Studio.NET Web User Services Interface Data and XML Base Class Library Common Language Runtime
  • 21. .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
  • 22. Some .NET Base Class Libraries System.Web System.WinFormsServices UI Design ComponentModel Description HtmlControls Discovery WebControls Protocols System.DrawingCaching Security Drawing2D PrintingConfiguration SessionState Imaging Text System.Data System.XmlADO SQL XSLT SerializationDesign SQLTypes XPath SystemCollections IO Security RuntimeConfiguration Net ServiceProcess InteropServicesDiagnostics Reflection Text RemotingGlobalization Resources Threading Serialization
  • 23. Agenda• Introduction to .NET and Web Services• The .NET Framework• Common Language Runtime• .NET Framework Services• Common Language Specification• .NET Development Tools
  • 24. Common Language Specification VB C++ C# JScript … Common Language Specification Visual Studio.NET Web User Services Interface Data and XML Base Class Library Common Language Runtime
  • 25. Common Language Specification• What about types? – Common type system (CTS)• Other languages and compilers – Common Language Specification (CLS)
  • 26. .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
  • 27. .NET Languages Available (or soon to be)• Visual Basic • Pascal• C# • C• Jscript • SmallTalk• C++ • Oberon• Perl • Scheme• Python • Mercury• COBOL • APL• Haskell • Eiffel• ML • Oz• Ada • Objective Caml
  • 28. Agenda• Introduction to .NET and Web Services• The .NET Framework• Common Language Runtime• .NET Framework Services• Common Language Specification• .NET Development Tools
  • 29. .NET Development Tools VB C++ C# JScript … Common Language Specification Visual Studio.NET Web User Services Interface Data and XML Base Class Library Common Language Runtime
  • 30. Visual Studio® .NET Planning and Collaborate Analysis Manage Design Development Testing Deployment .NET Platform
  • 31. Summary• We covered: – Introduction to .NET and Web Services – The .NET Framework – Common Language Runtime – .NET Framework Services – Common Language Specification – .NET Development Tools
  • 32. 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