Lap Around the .NET Framework 4

NameTitleCompany

A Look Back…A Look Back…

.NET 1.0 .NET 1.1 .NET 2.0

3.0

3.5

.NET 4

2002 2003 2008 CTP2005-08

CLR 1.0 CLR 1.1 CLR 2.0 CLR 4

SP1

The .NET FrameworkThe .NET Framework

Base Class Libraries

The CLRJIT & NGEN

Garbage Collector

Security Model

Exception Handling

Loader & Binder

WPF Win Forms DLR ASP.NET WCF And

more!LINQ

Client Applications

WPF 4MEF

Web Applications

Web Forms 4AJAX 4

Client/Server

WCF 4

The Building Blocks…The Building Blocks…Parallel Computing

Task Parallel LibraryParallel LINQ

Data Access

Entity Framework 4Data Services 1.5

Runtime

DLR IntegrationType EquivalenceIn-Process SxS

Web Forms 4 - Client IDWeb Forms 4 - Client ID

1) User Control (No ID)

2) User Control (“HeaderForm”)

Control Hierarchy3) Drop Down List (“States”)

Resulting Client IDs:1) ctl002) ctl00_HeaderForm3) ctl00_HeaderForm_States

Web Forms 4 - RoutingWeb Forms 4 - Routing

Request:Products/Bikes

ASP.NET Routing

Route:Product/{name} -> Product.aspx

WebForms Page

File Name:Product.aspx

Route Values:Name = “Bikes”

Response

ASP.NET WEB FORMS 4CLIENT ID / ROUTING

ASP.NET WEB FORMS 4CLIENT ID / ROUTING

AJAX 4 - Client TemplatesAJAX 4 - Client Templates

Server-Side (WebForms):<ItemTemplate>

<li><%# Eval("Name") %></li></ItemTemplate>

Client-Side<ul class="sys-template">

<li>{{ Name }}</li></ul>

AJAX 4 - DataContextAJAX 4 - DataContext

* DataContext includes change tracking automatically

ASMX

WCF

ADO.NETData Services

ASP.NET MVCJsonResult

Etc.

1. Request

2. JSON DataData

Context

3. Modify Data 4. Save Data

ASP.NET AJAX 4CLIENT TEMPLATES /

DATACONTEXT

ASP.NET AJAX 4CLIENT TEMPLATES /

DATACONTEXT

WPF 4WPF 4

Data Grid

Ribbon

Multi-Touch

Windows 7 Enhancements

Managed Extensibility Framework?

Managed Extensibility Framework?

The Managed Extensibility Framework (MEF) is a new library in the .NET Framework that enables greater reuse of applications and components. Using MEF, .NET applications can make the shift from being statically compiled to dynamically composed

Open/Closed PrincipleOpen/Closed Principle

Software entities should be open for extension,

but closed for modification.

Known vs. Unknown

CLIENT APPLICATIONSWPF 4 DATAGRID / MEF

CLIENT APPLICATIONSWPF 4 DATAGRID / MEF

Entity Framework 4Entity Framework 4

Model-First

POCO

Lazy Loading

Foreign Keys

A lot of new for WF/WCF 4A lot of new for WF/WCF 4

XAML-only workflows are the new defaultUnified model between WF, WCF, and WPF

Extended base activity librarySimplified WF programming modelSupport for arguments, variables, expressionsMajor improvements to WCF integrationRuntime and designer improvementsService discovery for WCFHosting & management via "Dublin“

ADO.NET Data Services 1.5ADO.NET Data Services 1.5

Server EnhancementsRow countServer-side pagingFriendly feedsBLOB streams

Client EnhancementsRow CountWPF/SL data binding

ADO.NET DATA SERVICESROW COUNT AND SERVER-SIDE

PAGING

ADO.NET DATA SERVICESROW COUNT AND SERVER-SIDE

PAGING

The Parallel Computing Initiative

The Parallel Computing Initiative

Letting the brightest developers solve business problems, not concurrency problems.

“Concurrency for the masses”

Parallel Computing with .NET 4Parallel Computing with .NET 4

1. Task Parallel Library (TPL)

2. Parallel LINQ (PLINQ)

3. Coordination Data Structures (CDS)

4. System.Threading Improvements

Parallel LINQParallel LINQ

Parallel LINQ (PLINQ) enables developers to easily leverage manycore with a minimal impact to existing LINQ programming model

var q = from p in people        where p.Name == queryInfo.Name && p.State == queryInfo.State && p.Year >= yearStart && p.Year <= yearEnd        orderby p.Year ascending        select p;

.AsParallel()

PARALLEL COMPUTINGPARALLEL LINQ (PLINQ)

PARALLEL COMPUTINGPARALLEL LINQ (PLINQ)

Why the DLR?Why the DLR?

Common Language Runtime

Statically-Typed

C#VB

RubyPython

Dynamically-Typed

Why the DLR?Why the DLR?

Common Language Runtime

Statically-Typed

C#VB

RubyPython

Dynamically-Typed

Dynamic Language Runtime

.NET Dynamic Programming.NET Dynamic Programming

PythonBinder

RubyBinder

COMBinder

JScriptBinder

ObjectBinder

Dynamic Language Runtime

Expression TreesDynamic Dispatch

Call Site Caching

IronPython

IronRuby C# VB.NET Others…

Dynamically Typed ObjectsDynamically Typed Objects

Calculator calc = GetCalculator();int sum = calc.Add(10, 20);

object calc = GetCalculator();Type calcType = calc.GetType();object res = calcType.InvokeMember("Add", BindingFlags.InvokeMethod, null, new object[] { 10, 20 });int sum = Convert.ToInt32(res);

ScriptObject calc = GetCalculator();object res = calc.Invoke("Add", 10, 20);int sum = Convert.ToInt32(res);

dynamic calc = GetCalculator();int sum = calc.Add(10, 20);

Statically typed to be dynamic

Dynamic method invocation

Dynamic conversion

DLR INTEGRATIONDLR INTEGRATION

Type EquivalenceType Equivalence

Interop Assemblies translate between managed code and COM

For each interface, struct, enum, delegate, and member, contains a

managed equivalent with marshalling data

However!However!

Primary Interop Assemblies cause many

pain points…

Go Away, PIA!Go Away, PIA!

1. Compilers embed the portions of the interop assemblies that the add-ins actually use

2. Runtime ensures the embedded definitions of these types are considered equivalent

CLR 4TYPE EQUIVALENCE

CLR 4TYPE EQUIVALENCE

.NET Framework Compatibility.NET Framework Compatibility

.NET 4.0 is a highly compatible release

.NET 4.0 does not auto–roll forwardYou must add a configuration file with a specific switch to get 3.5 apps to run on 4.0

.NET Framework Compatibility.NET Framework Compatibility

Hang on… if 4.0 is compatible, why not run 3.5 apps automatically on 4.0?

The BEST thing is always to prefer running on the version of the framework you built against

Contact netfxcf@microsoft.com and submit your app for testing!

CLR 2 - Existing Side-By-SideCLR 2 - Existing Side-By-Side

Host Process (i.e. Outlook)

.NET 2.0

2.0 add-in

3.0

3.5

3.0 add-in

3.5 add-in

1.1 add-in

.NET 1.1

CLR 4 - In-Process Side-By-Side

CLR 4 - In-Process Side-By-Side

.NET 2.0.NET 4.0

2.0 add-in

3.0

3.5

Host Process (i.e. Outlook)

3.0 add-in

3.5 add-in

4.0 add-in

QUESTIONS?QUESTIONS?

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