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3.  Introduction to.NET  Web Services  The.NET Framework  Common Language Runtime  Windows Forms  Web Forms  ADO.NET  Languages 3 NIIT, South Ex

4.  A vision of how information technology will evolve  A platform that supports the vision  A business model of software as a service 4 NIIT, South Ex

5.  A vision  Web sites will be joined by Web services  New smart devices will join the PC  User interfaces will become more adaptable and customizable  Enabled by Web standards 5 NIIT, South Ex

6. A platform The.NET Framework Visual Studio.NET.NET Enterprise Servers Database, Messaging, Integration, Commerce, Proxy, Security, Mobility, Orchestration, Content Management.NET Building Block Services Passport.NET My Services (“Hailstorm”) Goal: make it incredibly easy to build powerful Web applications and Web services } The focus of this course 6 NIIT, South Ex

7.  A business model  Software as a service  Subscription-based services  Application hosting, e.g. bCentral 7 NIIT, South Ex

8. Web Form.NET Framework Windows Web Service.NET Foundation Web Services Your Internal Web Service Third-Party Web Services.NET Enterprise Servers ClientsApplications Protocols: HTTP, HTML, XML, SOAP, UDDI Tools: Visual Studio.NET, Notepad 8 NIIT, South Ex

9.  A programmable application component accessible via standard Web protocols  The center of the.NET architecture  Exposes functionality over the Web  Built on existing and emerging standards  HTTP, XML, SOAP, UDDI, WSDL, … 9 NIIT, South Ex

10. Generation 1 Static HTML HTML Generation 2 Web Applications HTML HTML, XML Generation 3 Web Services 10 NIIT, South Ex

11. 11 VS.NET Project Assembly: geom.dll VB, C#, … Build SQL Server SQL Data Definition: create assembly … create function … create procedure … create trigger … create type … SQL Queries: SELECT name FROM Supplier WHERE Location.Distance ( @point ) < 3 CLR hosted by SQL (in-proc) Define Location.Distance()

12.  A set of technologies for developing and using components to create:  Web Forms  Web Services  Windows Applications  Supports the software lifecycle  Development  Debugging  Deployment  Maintenance 12 NIIT, South Ex

13. Common Language Specification Common Language Runtime VBC++C# ASP.NET: Web Services and Web Forms JScript… Windows Forms.NET Framework Base Classes ADO.NET: Data and XML Visual Studio.NET 13 NIIT, South Ex

14. System.Data Design OLEDB SQLTypes SQL System Globalization Diagnostics Configuration Collections Resources Reflection Net IO Threading Text ServiceProcess SecurityRuntime InteropServices Remoting Serialization System.Xml XPath XSLTSerialization System.Web ConfigurationSessionState CachingSecurity Services Description Discovery Protocols UI HtmlControls WebControls System.Drawing Imaging Drawing2D Text Printing System.Windows.Forms FormButton MessageBoxListControl 14

15. Development services Deep cross-language interoperability Increased productivity Deployment services Simple, reliable deployment Fewer versioning problems – NO MORE ‘DLL HELL’ Run-time services Performance Scalability Availability  Reliability  Security  Safety 15 NIIT, South Ex

16. Source Code C++, C#, VB or any.NET language csc.exe or vbc.exe Compiler Assembly DLL or EXE 16 NIIT, South Ex

17. 17Assembly Source Code Language Compiler Compilation At installation or the first time each method is called Execution JIT Compiler NativeCode Code (IL) Metadata

18.  Assembly  Logical unit of deployment  Contains Manifest, Metadata, MSIL and resources  Manifest  Metadata about the components in an assembly (version, types, dependencies, etc.)  Type Metadata  Completely describes all types defined in an assembly: properties, methods, arguments, return values, attributes, base classes, … 18 NIIT, South Ex

19.  Microsoft Intermediate Language (MSIL, IL)  All languages compile to IL (managed code)  IL is always compiled to native code before being executed  Resources  E.g..bmp,.jpg 19 NIIT, South Ex

20. CLR VB Source code Compiler C++C# Assembly Operating System Services MSIL Common Language Runtime JIT Compiler Compiler Native code Managed Code Managed Code Managed Code Unmanaged Code CLR Services Ngen 20 NIIT, South Ex

21. Code management Conversion of MSIL to native code Loading and execution of managed code Creation and management of metadata Verification of type safety Insertion and execution of security checks Memory management and isolation Handling exceptions across languages Interoperation between.NET Framework objects and COM objects and Win32 DLLs Automation of object layout for late binding Developer services (profiling, debugging, etc.) 21 NIIT, South Ex

22. Common Type System (CTS) A superset of the data types used by most modern programming languages Common Language Specification (CLS) A subset of CTS that allows code written in different languages to interoperate What languages? Microsoft: C++, Visual Basic, C#, JScript Third-Party: Cobol, Eiffel, Smalltalk, Scheme, Oberon, Haskell, Java, Python, Perl, … 22 NIIT, South Ex

23.  An application consists of one or more assemblies  How does one assembly bind to another?  Based upon metadata and policy  Local (preferred)  Assembly Global Cache  Multiple versions of an assembly may exist on the same machine  Easier software deployment, updates and removal  Multiple versions of an assembly can even be used by the same application 23 NIIT, South Ex

24.  Evidence-based security (authentication)  Based on user identity and code identity  Configurable policies  Imperative and declarative interfaces 24 NIIT, South Ex

25.  Framework for building rich clients  Built upon.NET Framework, languages  Rapid Application Development (RAD)  Visual inheritance  Anchoring and docking  Rich set of controls  Extensible controls  Data-aware  Easily hooked into Web Services  ActiveX support  Licensing support  Printing support  Advanced graphics 25 NIIT, South Ex

26. Built with ASP.NET Logical evolution of ASP Similar development model: edit the page and go Requires less code New programming model Event-driven/server-side controls Rich controls (e.g. data grid, validation) Data binding Controls generate browser-specific code Simplified handling of page state 26 NIIT, South Ex

27.  Allows separation of UI and business logic  Uses.NET languages  Not just scripting  Easy to use components  XCOPY/FTP deployment  Simple configuration (XML-based) 27 NIIT, South Ex

28.  Caching (pages, fragments, custom)  Scalable session state management  Tracing support  ASP.NET is extensible  No ISAPI / ASP dichotomy  Automatic process rollover  Forms-based authentication 28 NIIT, South Ex

29.  Similar to ADO, but better factored  Language-neutral data access  Supports two styles of data access  Disconnected  Forward-only, read-only access  Supports data binding  DataSet: a collection of tables  Can view and process data relationally (tables) or hierarchically (XML) 29 NIIT, South Ex

30.  New language created for.NET  Safe, productive evolution of C++  Key concepts:  Component-oriented  Everything is an object  Robust and durable code  Preserving your investment  Submitted to ECMA for standardization  Uses.NET Framework classes 30 NIIT, South Ex

31.  Modernizes and simplifies Visual Basic  Inheritance  Threading  Exception handling  Support for late binding  Uses.NET Framework classes 31 NIIT, South Ex

32. .NET Framework 1.1 This is the first major.NET Framework upgrade. It is available on its own as a redistributable package or in a software development kit, and was redistributable package published on 3 April 2003. It is also part of the second release of Microsoft Visual Studio.NET (released as Visual Studio.NET 2003). This is theVisual Studio.NET first version of the.NET Framework to be included as part of the Windows operating system, shipping with Windows Server 2003. MainstreamWindows Server 2003 support for.NET Framework 1.1 ended on 14 October 2008, and extended support ends on 8 October 2013. Since.NET 1.1 is a component of Windows Server 2003, extended support for.NET 1.1 on Server 2003 will run out with that of the OS – currently 14 July 2015..NET 1.1 is the last available version for Windows NT 4.0. Windows NT 4.0 If.NET Framework 1.0 is removed, installing only.NET Framework 1.1 also provides the system support for version 1.0, except in rare instances where an application will not run because it checks the version number of a library. 32 NIIT, South Ex

33. .NET Framework 2.0 Released with Visual Studio 2005, Microsoft SQL Server 2005, and BizTalk 2006.Visual Studio 2005Microsoft SQL Server 2005BizTalk The 2.0 Redistributable Package can be downloaded for free from Microsoft, and wasMicrosoft published on 22 January 2006. The 2.0 Software Development Kit (SDK) can be downloaded for free from Microsoft.Microsoft It is included as part of Visual Studio 2005 and Microsoft SQL Server 2005.Visual Studio 2005Microsoft SQL Server 2005 Version 2.0 without any Service Pack is the last version with support for Windows 98Windows 98 and Windows MeWindows Me. Version 2.0 with Service Pack 2 is the last version with official support for Windows 2000 although there have been some unofficial workarounds published online to use a subset of the functionality from Version 3.5 in Windows 2000. [19] Version 2.0 [19] with Service Pack 2 requires Windows 2000 with SP4 plus KB835732 orWindows 2000 KB891861 update, Windows XP with SP2 or later andWindows XP Windows Installer 3.1 (KB893803-v2)Windows Installer It shipped with Windows Server 2003 R2 (not installed by default).Windows Server 2003 R2 33 NIIT, South Ex

34. Changes in 2.0 in comparison with 1.1 Generics Language support for generics built directly into the.NET CLR.generics Full 64-bit support for both the x64 and the IA64 hardware platforms. Numerous API changes. SQL Server integration –.NET 2.0, VS 2005, and SQL Server 200SQL Server 5 are all tied together. This means that instead of using T-SQL, oneT-SQL can build stored procedures and triggers in any of the.NET-compatiblestored procedures languages. A new hosting API for native applications wishing to host an instance of the.NET runtime. The new API gives a fine grain control on the behavior of the runtime with regards to multithreading, memory allocation, assembly loading and more. It was initially developed to efficiently host the runtime in Microsoft SQL Server, which implements its own scheduler and memoryMicrosoft SQL Server manager. 34 NIIT, South Ex

35. Comparison contd……… Many additional and improved ASP.NET web controls. New data controls with declarative data binding. New personalization features for ASP.NET, such as support for themes, skins, master pages and webparts..NET Micro Framework – a version of the.NET Framework.NET Micro Framework related to the Smart Personal Objects Technology initiative.Smart Personal Objects Technology Membership provider Partial classes Nullable types Anonymous methods Iterators Data tables 35 NIIT, South Ex

36.  Internet Technologies  Programming Languages and Paradigms  Programming the Web .NET Overview 36 NIIT, South Ex