vs2012

Visual Studio 2012 and .NET 4.5

Andrei [email protected]

Twitter:

@amarukovich

Blog: lunarfrog.com/blog

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Agenda

• Visual Studio 2012 improvements

• .NET Framework 4.5

• C# 5

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Projects round-tripping

Visual Studio 2010 Visual Studio 2012

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Round-tripping constrains

• Requires Visual Studio 2010 SP1

• Supports .NET 2.0 to 4.0, Silverlight 4 to 5

• Project categories• Round-trips seamlessly• Requires behavioral modifications to

round-trip• Does not round-trip• Deprecated projects

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Demo

VS 2012 User Interface

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Portable Class Libraries

• New project type

• Multi-platform targeting

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.NET 4.5 Framework

• Pre-installed in Windows 8

• Windows XP is not supported

• .NET 4.5 is an in-place update for 4.0

.NET 2.0 .NET 4.0

.NET 3.0

.NET 3.5.NET 4.5

CLR 2.0 CLR 4.0

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New in .NET 4.5

• Native .zip files support

ZipFile.CreateFromDirectory(@"C:\Example\", @"C:\Temp\example.zip");

ZipFile.ExtractToDirectory( @"C:\Temp\example.zip“, @"C:\Output\");

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New in .NET 4.5

• ZipArchive class for fine control

var extractPath = @"c:\example\extract";

using (ZipArchive archive = ZipFile.OpenRead(@"c:\example\start.zip")) { foreach (ZipArchiveEntry entry in archive.Entries) { if (entry.FullName.EndsWith(".txt")) { entry.ExtractToFile(Path.Combine(extractPath, entry.FullName)); } } }

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Performance optimizations

• Multicore Just-in-Time (JIT) compiler

static void Main(){ ProfileOptimization.SetProfileRoot(@"C:\Profiles\"); ProfileOptimization.StartProfile ("AppProfiles"); …}

• Enabled by default - ASP.NET 4.5, Silverlight 5

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Native Image Generation

• Automatic Native Image Generation(NGen)

• Managed Profile Guided Optimization

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Asynchrony

• New keywords in C# and VB• async• await

• Async methods in .NET framework

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Synchronous call

private void ButtonClick(){ WebClient client = new WebClient(); var str = client.DownloadString("http://host/service"); ResultsBox.Text = str;}

Download Update

Thread

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Async call

async private void ButtonClick(){ WebClient client = new WebClient(); var str = await client.DownloadStringTaskAsync("http://host/service"); ResultsBox.Text = str;}

Thread

Download string

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Async call details

ButtonClick()

Download String

ButtonClick_Callback()

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Demo

async and await

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Limitations

• Cannot use await inside constructor

• Cannot use await inside catch and finally

• Cannot use await inside lock block

• Cannot use await inside Main method

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New attributes in C# 5

• Caller information attributes• CallerMemberName• CallerFilePath• CallerLineNumber

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Demo

Caller information attributes

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Closures in C# 4public void PrintNumbers(){ var values = new List<int> { 1, 2, 3, 4, 5 }; var funcs = new List<Func<int>> ();

foreach(var v in values) funcs.Add( ()=> v);

foreach(var f in funcs) Console.WriteLine(f ());}

5 5 5 5 5

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foreach(var v in values) { var x = v; funcs.Add( ()=> x); } foreach(var f in funcs) Console.WriteLine(f ());}

1 2 3 4 5

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foreach(var v in values) funcs.Add( ()=> v);

foreach(var f in funcs) Console.WriteLine(f ());}

1 2 3 4 5

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Desktop app development

.NETWinForm

s

.NET/XAML WPF

.NET/XAML

Silverlight

HTML/JSASP.NET

.NETWinForm

s

.NET/XAML WPF

.NET/XAML

Silverlight

HTML/JSASP.NET

HTML/JSWinRT

.NET/XAMLWinRT

C++/XAML/DX

Desktop HTML/BrowserWindows 8

Windows 7

Windows 8

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Windows 8 app platform

WinRT APIs

IE 10 Engine

C++.NET

JavaScript C# / VB

HTML5 / CSS

DirectX XAML

Windows Kernel Services

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Visual Studio 2012

Improved IDE

UI improvements

Better Intellisense

HTML5 templates

Portable libraries

Performance

Async

Multicore JIT

Optimized NGen

Technologies

Web API

EF 4.5

MEF 2.0

ASP .NET

WinRT

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VisualStudio.com

Visual Studio Express

Windows 8

Web

Desktop

Free

Visual Studio

Ultimate

Premium

Professional

90-day trial

Thank you!

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lunarfrog.com/blog

@amarukovich

vs2012

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