Developer Day

Was ist neu in .NET 4.5?

Ken CasadaTechnical Evangelist, Microsoft Switzerlandkcasada@microsoft.com

Quick Reminder – What is .NET?

Base Class Libraries The CLRJIT & NGEN

Garbage Collector

Security Model

Exception Handling

Loader & Binder

Profiling& Debugging APIs

Entity Frame-work

ASP. NET

WCFAnd

more!WorkFlow

WPFWin

Forms

.NET Versions

.NET Framework 4.5 is an in-place updateYou get it automatically with Windows 8 and Windows Server 2012

.NET 1.0 .NET 1.1 .NET 2.0

3.0

3.5

.NET 4.0

2002 2003

2005 2010

-08

4.5

CLR 1.0 CLR 1.1 CLR 2.0 CLR 4.0

-12

Migrating to .NET 4.5

Steps: Migrate your existing apps to .NET 4.0 If everything OK Migrate to .NET 4.5 Refer to .NET 4.5 Migration Guidance

(http://msdn.microsoft.com/en-us/library/ff657133.aspx)

Language Improvements

Chapter 1/6

C# and VB evolution

Managed Code

Generics

Language Integrated Query

Dynamic + (Language Parity)

C# 5.0 + VB 11.0Windows 8 Runtime + Asynchrony

C# 1.0 + VB 7.0

C# 2.0 + VB 8.0

C# 3.0 + VB 9.0

C# 4.0 + VB 10.0

Asynchronous programming is becoming the norm in modern, connected

applications

DEMOAsync

DEMO Summary

What is async? A new easier way to write connected apps Two new keywords: Await and Async in VB and C# A new Task based design pattern for APIs A new set of .NET Framework APIs

Entity Framework

Chapter 2/6

Entity Framework Evolution

EF 1 Shipped with .NET 3.5 SP1 Features:

Basic ORM support Database First Workflow

EF 4 Shipped with .NET 4.0 and Visual Studio 2010 Features:

Model First Workflow POCO, FKs, Lazy Loading, T4 Code Generation, …

NewDatabase

ExistingDatabase

Designer Centric

Model First Create .edmx model in

designer Generate database

from .edmx Classes auto-generated

from .edmxDatabase First Reverse engineer .edmx model Classes auto-generated

from .edmx

Developer Workflows

Designer Centric

Code Centric

Model First Create .edmx model in

designer Generate database

from .edmx Classes auto-generated

from .edmxDatabase First Reverse engineer .edmx model Classes auto-generated

from .edmx

Code First Define classes & mapping in

code Database auto-created at

runtime

Code First Define classes & mapping in

code(Reverse engineer tools available)

Developer Workflows

NewDatabase

ExistingDatabase

DEMOCode First

Product• Id: int• Name: max• UnitPrice:

decimal

code change update-databaseadd-migration

Product• Id: int• Name: 128• UnitPrice:

decimal

ChangeColumn( “Products", "Name", ca => ca.String( maxLength:128));

Entity Framework Migrations

DEMOMigrations

Entity Framework 5 Features

only with .NET 4.5 apps Enums Spatial Types Table-Valued Functions Sprocs with multiple result sets Automatic compiled LINQ To Entities queries (by just upgrading to .NET 4.5, 6x

faster)

with both .NET 4.0 and .NET 4.5 apps CodeFirst and Migrations Query optimization improvements Multiple Diagram Support (Visual Studio 2012 feature)

Entity Framework 4.5 Resources

Learning Resources• Main MSDN Page http://msdn.com/ef

• ASP.NET + EF Tutorials http://www.asp.net/entity-framework/tutorials

Blogs• ADO.NET Team Blog http://blogs.msdn.com/adonet/

• EF Design Blog http://blogs.msdn.com/efdesign/

Releases• EF Power Tools Beta 2 (VS2012 Tools menu Extensions and updates)

http://blogs.msdn.com/b/adonet/archive/2012/04/09/ef-power-tools-beta-2-available.aspx

• EF 6.0 Alpha 1 http://blogs.msdn.com/b/adonet/archive/2012/10/30/ef6-alpha-1-available-on-nuget.aspx

ASP.NET

Chapter 3/6

ASP.NET Core Runtime and FrameworkPerformance Performance Improvements for ASP.NET Web Hosting

Faster ASP.NET Startup (multi-core JIT compilation sharing common assemblies)

Reduced memory footprint Up to 35% performance in combination with Windows Server 2012

(prefetching feature)

More Info: http://www.asp.net/vnext/overview/whitepapers/whats-new#_Toc_perf

Today

After applying Bundling and Minification

More Info: http://weblogs.asp.net/scottgu/archive/2011/11/27/new-bundling-and-minification-support-asp-net-4-5-series.aspx

ASP.NET Bundling and Minification

Main Improvements HTML 5 Updates

Ex: TextMode property of the TextBox control supports new HTML 5 input types like email, datetime

Validator Controls now support Unobstrusive JavaScript for client-side validation logic

HTML Encoded Data-Binding Expressions

Strongly Type Data Controls Model Binding

ASP.NET Web Form

DEMOASP.NET Web Form• Strongly Type Data Controls• Model Binding

Main Improvements Fresh HTML 5 default project templates Built-in support for mobile sites New Mobile project template

Based on Jquery Mobile (for touch-optimized UI)

More Info: http://www.asp.net/whitepapers/mvc4-release-notes

ASP.NET MVC 4

DEMOASP.NET MVC 4

WPF

Chapter 4/6

WPFMain Improvements Ribbon control

Improved performance whendisplaying large amount of data

MVVM Improvements

Designer improvements: VS2012 has the same design engine as Expression Blend

More Info: http://msdn.microsoft.com/en-us/library/bb613588(v=vs.110).aspx

WCF

Chapter 5/6

WCF

Configuration improvements Tooltip, Intellisense and compile-time validation in config files (VS 2012) Generated client config files cleaned: only non-default binding configuration will be

generated

WebSocket support for WCF based Services Just with W8 New Binding: NetHttpBinding and NetHttpsBinding

New UDP Binding (fire and forget) Tip: no out-of-the-box support in .NET 4.0 (sample for that)

WCF

Typical WSDL file generated from a WCF service

Inside WSDL definition additional files are being referenced (import directives)

WCF

New in WCF 4.5: support for flat WSDL file

…all info are available in 1 single file (good for interoperability)

WF

Chapter 6/6

Workflow Versioning Contract First Services C# Expressions State machines (*) Runtime Performance Designer Improvements Performance Usability Better Integration with VS

(*) part of Update 4.0.3 for Microsoft .NET Framework 4:Runtime update (http://support.microsoft.com/kb/2600214)

More Info: http://msdn.microsoft.com/en-us/library/hh305677(v=vs.110).aspx

Q&A