.net Framework
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The .NET Framework allows developers to easily develop applications across various platforms and devices. Some key aspects of the .NET Framework 4.0 include improved support for parallel and asynchronous programming using technologies like the Task Parallel Library and improvements to the garbage collector to better optimize application performance. The Dynamic Language Runtime also allows dynamic languages to better interact with the .NET Framework and CLR.
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.net Framework
- 1. .NET Framework… v3.0, v3.5, v4.0Bijoy SinghalDeveloper EvangelistMicrosoft India
- 2. Developer’s Wish List…Easy to translate requirement into codeEasy to locate and fix issuesEasy manageability and future proofingEasy handling ofDataBusiness LogicUser InterfaceEasy handling ofSecurityPerformanceScalability
- 3. Top considerations of framework designMaking Languages more productiveProviding APIs for complex patternsCachingAdd-insConcurrencySynchronizationScaffoldingDeploymentPowerful Tools.NET SDK ToolsVisual Studio
- 4. Key Areas of the Framework
- 5. A Look Back…SP13.53.0.NET 1.0.NET 1.1.NET 2.0.NET 4200220032008 CTP!2005-08CLR 1.0CLR 1.1CLR 2.0CLR 4
- 6. Additions to the Framework…
- 7. What Is The .NET Framework?WPFWin FormsDLRASP.NETWCFAnd more!LINQBase Class LibrariesThe CLRJIT & NGENGarbage CollectorSecurity ModelException HandlingLoader & Binder
- 8. .NET Framework 4.0User InterfaceData AccessServicesWindows Presentation FoundationASP.NET(WebForms, MVC, Dynamic Data)Entity FrameworkADO.NETData ServicesWindows Communication FoundationWinFormsLINQ to SQLWindows Workflow FoundationCoreBase Class LibraryDynamic Language RuntimeLanguagesManaged Extensibility FrameworkLINQParallel ExtensionsCommon Language Runtime
- 9. The goal of CLR 4.0Working Better Together…Faster…With Fewer Bugs…In-Proc SxSManaged Extensibility FrameworkNative/Managed InteropDLR IntegrationThreadingParallel ExtensionsGarbage CollectionProfilingCode ContractsDebuggingCorrupted State Exceptions
- 11. Parallel ComputingTask Parallel Library (TPL)Imperative Task ParallelismWork-Stealing Algorithm for maximum efficiencyHigher-level abstraction (no more Thread knowledge necessary)Parallel Linq (PLINQ)Declarative Data Parallelism (focus on the *what*, not the *how*)Simple Parallelism via Linq-To-ObjectsCoordination Data Structures (CDS)Common structures to help with parallelism tasks
- 12. Managed Extensibility Framework - SummarySystem.ComponentModel.CompositionMEF Core Components:CatalogDiscovers and maintain extensionsCompositionContainerCoordinate creations and satisfy dependenciesComposablePartOffer one or more exportsMay depend on imports for extension it usesCreate reusable componentsEasy declaration/consumption of extensibility pointsWatching a specific directory for new extensionsNo need to create infrastructure from scratchMEF is dynamically composed
- 13. Code Contracts - SummaryFoundationDesign by contractBased on MSR’s SPEC#What does it bring?Improved testabilityStatic verificationAPI DocumentationHow does it help?Guarantee obligations on entry (parameter validations)Guarantee property at exit (return value range)Maintain property during execution (object invariance)
- 14. Garbage Collection - SummaryServer Garbage Collection Algorithm maximizes overall throughput – fast – but all managed code has to be paused while it runs.In CLR 4.0, you can be notified before a Gen 2/ Large Object Heap collection. Useful when you can do load balancing.Workstation Garbage CollectionCLR 2.0:Can do most, but not all, of a Generation 2 collection without pausing managed codeNew allocations go on ephemeral segment But can’t do Gen0 and Gen1 at same time as Gen2. New in CLR 4.0, we have Background CollectionBackground Collection can do a Gen0 or Gen1 while doing Gen2Only unusual circumstances now lead to long latency
- 15. Garbage Collection - SummaryDefinite improvement in performance and scalability of the applicationLesser chance of getting OutOfMemoryExceptionApplication health is optimum at all times.Optimum consumption of the processing power.On the server side you can load balance your application usingGCNotifications. Nothing really prevents your from using GCNotifications on workstations.
- 16. Dynamic Language SupportDynamic keyword: mark a property or variable as dynamic at compile time. at runtime the corresponding static type will be assigned to that entity.Dynamic Language RuntimeInteroperate and interact with the CLR using dynamic languagesGet the power of .NET for dynamic languages
- 17. Dynamic in .NET 4.0 - SummaryDynamic Language RuntimeAdded dynamism to .NET Added runtime type checkingFull support for IronRuby, IronPythonDynamic DispatchIntroduced new type – dynamicCompiler merely packages information and defers binding to runtimeUses IDispatch interfaceCreate your own dynamic types using:DynamicObject or IDynamicMetaObjectProvider
- 18. ASP.NET 4.0ASP.NET MVCSeparation of Concerns, TestabilityHigh control over market upASP.NET Dynamic Data support for MVCEasily Create Custom controls and views based on data baseASP.NET better CSS and ID
- 19. More Web Goodies… ADO.NET Data ServicesREST based exposure of relational dataAbility to go “offline”ASP.NET AJAXJavaScript UI Templates and Data-bindingAJAX Control Toolkit Enhancements Client-side controlsDOM selection, manipulation and animationAddition of jQuery
- 20. Some other interesting EnhancementsCLR EnhancementSide by Side In Process runtime (CLR)Use ClrVer to see more.BCL EnhancementsBigIntegerArbitrary length integer supporting all mathematical operations. TuplesSequence of finite lengthSystem.Lazy<T>Framework implements the pattern; Developer uses it.
- 21. Feedback / QnAYour Feedback is Important!Please take a few moments to fill out our feedback form
- 23. Bijoy [email protected] [email protected] [email protected]://delhiitpro.groups.live.comhttp://delhidevs.com
- 24. 2006 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.
Editor's Notes
- #4: Windows Server includes key application server functionality directly in the operating system including distributed transactions, message queuing, a Web server and Web services, communications, workflow, and management. Complemented by the .NET Framework and Visual Studio, Windows Server is one of the leading application servers in the market today.
- #6: Could you explain this What it want to say.
- #8: What is NGEN & Loader & binder?
- #12: Parallel ExtensionsWe worked with the Parallel Extensions team to add the Task Parallel Library (TPL), Coordination Data Structures, and Parallel LINQ (PLINQ) to the BCL in .NET 4.0. This includes an improved ThreadPool scheduling algorithm for tasks, the static Parallel class, concurrent collections in System.Collections.Concurrent, and other coordination data structures such as LazyInit<T>, CountdownEvent, Barrier, SemaphoreSlim, SpinLock, SpinWait, and ManualResetEventSlim. More information is available over at the PFX team’s blog. Also, check out Daniel Moth’s PDC session on Parallel Programming for Managed Developers with the Next Version of Microsoft Visual Studio.
- #17: Dynamic Language Support: In the industry see more and more use of dynamic languages such as Ruby and Python by the developer community. I still believe that static typing provides a very important safety net, but on the other hand some tasks are just done much more efficiently done in dynamic languages. Therefore I am very excited about the fact that C# will incorporate dynamic language features in its next version. C# will provide a dynamic keyword which will mark a property or variable as dynamic at compile time. Nevertheless, at runtime the corresponding static type will be assigned to that entity, see the example code below.Declarative Programming: In many ways we over specify our programs by using imperative programming techniques. This not only makes it tedious to program software but also makes it hard for the compiler to catch the intentions of the program in order for it to do optimizations (such as parallel execution). With LinQ and functional programming elements included in the C# language it is possible to declaratively specify the intention of the code which allow the compiler to optimize more intelligently. http://channel9.msdn.com/pdc2008/TL10/