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.net Framework


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  • 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.
  • Could you explain this What it want to say.
  • What is NGEN & Loader & binder?
  • 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.
  • 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.
  • Transcript

    • 1. .NET Framework
      … v3.0, v3.5, v4.0
      Bijoy Singhal
      Developer Evangelist
      Microsoft India
    • 2. Developer’s Wish List…
      Easy to translate requirement into code
      Easy to locate and fix issues
      Easy manageability and future proofing
      Easy handling of
      Business Logic
      User Interface
      Easy handling of
    • 3. Top considerations of framework design
      Making Languages more productive
      Providing APIs for complex patterns
      Powerful Tools
      .NET SDK Tools
      Visual Studio
    • 4. Key Areas of the Framework
    • 5. A Look Back…
      .NET 1.0
      .NET 1.1
      .NET 2.0
      .NET 4
      2008 CTP!
      CLR 1.0
      CLR 1.1
      CLR 2.0
      CLR 4
    • 6. Additions to the Framework…
    • 7. What Is The .NET Framework?
      Win Forms
      And more!
      Base Class Libraries
      The CLR
      JIT & NGEN
      Garbage Collector
      Security Model
      Exception Handling
      Loader & Binder
    • 8. .NET Framework 4.0
      User Interface
      Data Access
      Windows Presentation Foundation
      (WebForms, MVC, Dynamic Data)
      Entity Framework
      Data Services
      Windows Communication Foundation
      LINQ to SQL
      Windows Workflow Foundation
      Base Class Library
      Dynamic Language Runtime
      Managed Extensibility Framework
      Parallel Extensions
      Common Language Runtime
    • 9. The goal of CLR 4.0
      Working Better Together…
      With Fewer Bugs…
      In-Proc SxS
      Managed Extensibility Framework
      Native/Managed Interop
      DLR Integration
      Parallel Extensions
      Garbage Collection
      Code Contracts
      Corrupted State Exceptions
    • 10. .NET 4.0
    • 11. Parallel Computing
      Task Parallel Library (TPL)
      Imperative Task Parallelism
      Work-Stealing Algorithm for maximum efficiency
      Higher-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-Objects
      Coordination Data Structures (CDS)
      Common structures to help with parallelism tasks
    • 12. Managed Extensibility Framework - Summary
      MEF Core Components:
      Discovers and maintain extensions
      Coordinate creations and satisfy dependencies
      Offer one or more exports
      May depend on imports for extension it uses
      Create reusable components
      Easy declaration/consumption of extensibility points
      Watching a specific directory for new extensions
      No need to create infrastructure from scratch
      MEF is dynamically composed
    • 13. Code Contracts - Summary
      Design by contract
      Based on MSR’s SPEC#
      What does it bring?
      Improved testability
      Static verification
      API Documentation
      How 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 - Summary
      Server 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 Collection
      CLR 2.0:
      Can do most, but not all, of a Generation 2 collection without pausing managed code
      New 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 Collection
      Background Collection can do a Gen0 or Gen1 while doing Gen2
      Only unusual circumstances now lead to long latency
    • 15. Garbage Collection - Summary
      Definite improvement in performance and scalability of the application
      Lesser chance of getting OutOfMemoryException
      Application 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 Support
      Dynamic 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 Runtime
      Interoperate and interact with the CLR using dynamic languages
      Get the power of .NET for dynamic languages
    • 17. Dynamic in .NET 4.0 - Summary
      Dynamic Language Runtime
      Added dynamism to .NET
      Added runtime type checking
      Full support for IronRuby, IronPython
      Dynamic Dispatch
      Introduced new type – dynamic
      Compiler merely packages information and defers binding to runtime
      Uses IDispatch interface
      Create your own dynamic types using:
      DynamicObject or IDynamicMetaObjectProvider
    • 18. ASP.NET 4.0
      Separation of Concerns, Testability
      High control over market up
      ASP.NET Dynamic Data support for MVC
      Easily Create Custom controls and views based on data base
      ASP.NET better CSS and ID
    • 19. More Web Goodies…
      ADO.NET Data Services
      REST based exposure of relational data
      Ability to go “offline”
      JavaScript UI Templates and Data-binding
      AJAX Control Toolkit Enhancements
      Client-side controls
      DOM selection, manipulation and animation
      Addition of jQuery
    • 20. Some other interesting Enhancements
      CLR Enhancement
      Side by Side In Process runtime (CLR)
      Use ClrVer to see more.
      BCL Enhancements
      Arbitrary length integer supporting all mathematical operations.
      Sequence of finite length
      Framework implements the pattern; Developer uses it.
    • 21. Feedback / QnA
      Your Feedback is Important!
      Please take a few moments to fill out our feedback form
    • 22. Contact
      Blog Address
      Email Address
    • 23. Bijoy Singhal
      Abhishek Baxi
      Rishu Mehra
    • 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.