Lucian Wischik
I'm on the VB/C# language design team at Microsoft
-
.NET for UWP Part 4: Advanced CoreFX TopicsLucian Wischik concludes the .NET for UWP series with a deeper dive into CoreFX. Specifically, Lucian explores how the entire .NET Core is included in your UWP application as a set of NuGet packages with NuGet 3.0, and what that means for you as a UWP developer. Learn how to reference beta versions of...
-
NET for UWP Part 3: Advanced .NET Native TopicsDaniel Jacobson dives deeper into .NET Native - learn about some issues you may encounter with .NET Native in UWP and how to debug those issues, learn about serialization and reflection in a native world, and learn how to optimize your CI build servers.
Part 1 - Introduction to CoreFX...
-
.NET for UWP Part 2: Introduction to .NET NativeUWP apps run on a new .NET Runtime called .NET Native. In this video Daniel Jacobson outlines the key advantages of .NET Native – it generates 100% native code and gives your app a fast startup time. Daniel explains best-practice for your Build, Debug, and Test loop in light of .NET Native, and how it...
-
.NET for UWP Part 1: Introduction to CoreFXHow does .NET work in Universal Windows Platform (UWP) applications for Windows 10? Most of it is familiar to .NET developers but there are some differences you should know. That's what this video series is about. In this video Lucian Wischik kicks off with an overview of .NET Core, some of the .NET...
-
UWP - getting started with win2dFast accelerated graphics! with an clean easy API! That's the promise of Microsoft's Win2d library.
In this video I walk through, from scratch, how to create a simple animated graphics application for UWP using .NET. There are full notes (and links to source code) on my blog: http://blogs.msdn.com/b/lucian/archive/2015/06/17/win10-apps-in-net-getting-started-with-win2d-accelerated-graphics.aspx
... -
UWP - port from phone8.1 to phone8.1 + Win10This live video shows me porting a phone8.1 app to phone8.1 + Win10. It showcases Shared Projects (and how to set them up), adaptive UI, adaptive Code, debugging techniques to reduce application startup time, .NET Native compilation, and dealing with race conditions in RoamingSettings.
For more details,...
-
UWP - port from 8.1 universal app to Win10This live video shows me porting an 8.1 universal app to Win10.
For more details, please read the accompanying blog: http://blogs.msdn.com/b/lucian/archive/2015/06/09/win10-apps-in-net-porting-from-8-1-universal-to-win10.aspx
-
Analyzer sample in Dev14 CTP3This video walks through two sample Roslyn Analyzers.
One analyzer gives squiggles where you could improve your code with the new C#6 language features - nameof(), ?. and primary constructors.
Another analyzer gives squiggles for a XAML performance tip - allocating repeated heap allocations of PropertyChangedEventArgs...
-
Tip 6: Async library methods should consider using Task.ConfigureAwait(false)6. Libraries should consider Task.ConfigureAwait(false). This is another micro-optimization you can use to reduce your methods' impact on the UI thread. Consider this if your library routine might be called from the UI thread, and has chatty awaits inside it.
Slides, codes and transcript for...
-
Tip 5: Async libraries APIs should be chunky5. Libraries should have chunky async APIs.
But if you can't achieve that, there's a micro-optimization you can use for async methods based around the fast-path which can reduce or eliminate the heap overhead of async methods. As always, don't micro-optimize prematurely...
Slides, source code...
| Forum | Thread | Replies | Latest activity |
|---|---|---|---|
| Coffeehouse | async and lock | 76 | Jun 19, 2014 at 9:56AM |
| Coffeehouse | Why is the "async" keyword needed? | 31 | Nov 01, 2010 at 5:34PM |
Staff
Here is a list of Channel 9 staff members.
UWP - getting started with win2d
Jul 16, 2015 at 7:28AM@Thomas, maybe the difference is that I'm using "Option Strict On" (under ProjectProperties>Compile), and you're using "Option Strict Off"?
I sometimes forget about it since I set it to be my default (under Tools > Options > Projects And Solutions > VBDefaults)...
UWP - port from 8.1 universal app to Win10
Jun 13, 2015 at 2:32AMThis video is just a warmup. Please also check out the next video in this series - http://channel9.msdn.com/Series/Creating-a-Universal-App-in-VB/UWP-port-from-phone81-to-phone81--Win10?wt.mc_id=EntriesInArea
It's a port of a "real" app, and uses Shared Projects, and gets huge startup-time wins thanks to debugger PerfTips and .NET Native.
What's New in C# 6 and Visual Basic 14
May 05, 2015 at 4:30PM@Andre, just to note, lack of await in catch/finally has a very easy workaround. For instance, instead of
Try
stuff1
Catch ex As Exception
stuff2
Awaitr.CloseAsync()
End Tryyou can instead write
Dim t As Task = Nothing
Try
stuff1
Catch ex As Exception
stuff2
t = r.CloseAsync()
End Try
If t IsNot Nothing Then Await t
What's New in Visual Basic 14
Nov 17, 2014 at 9:16AM@LarHel, yes, all features work fine when down-targeting.
There's one corner of string interpolation to mention... we'll let you write
Dim x As FormattedString = $"hello {p.Age:0.00}" x.FormatString ' String with value "hello {0:0.00}" x.Args ' Object array with one element, p.AgeThis will only work if the "FormattedString" type is present. This will be built into .NET4.6, but it will also be available in a NuGet package for people targeting older versions of the framework. Similar to what we did with Microsoft.Bcl.Async
What's New In C# 6.0
Nov 15, 2014 at 5:25PMIf you wish to enforce a team policy that no one is allowed to use ?. there's now a really easy way to do it. Look at Alex's video about "analyzers": http://channel9.msdn.com/Events/Visual-Studio/Connect-event-2014/714
It will take you about 30 minutes to write an analyzer that enforces the rule "no ?. is allowed". You can add the analyzer as a reference to your projects. This will give a compile-time error (both on dev machines and on your team build server) anytime anyone uses the ?. operator.
What's New In C# 6.0
Nov 15, 2014 at 10:30AM@Kintar - I don't like videos either :) All of Mads' material is on the C#/VB project site here in a lot more depth - https://roslyn.codeplex.com/wikipage?title=Language%20Feature%20Status
Also we'll be putting up a blog post about the new features early next week - http://blogs.msdn.com/b/csharpfaq/
What's New in Visual Basic 14
Nov 13, 2014 at 2:10PMClarification: two of the features mentioned "NameOf" and "String Interpolation" aren't yet in VS2015 Preview; they'll come along presently (prior to the final release of VS2015).
.NET 2015 & Managed Languages
Nov 13, 2014 at 11:18AM@carlospinedag, I'm curious if you've tried the "IL Support" extension on the Visual Studio gallery? It's a third-party extension that people use to put IL directly into their VB/C# projects. Hasn't yet been updated for VS2015.
https://visualstudiogallery.msdn.microsoft.com/530dc77a-a9b0-43bf-9ae2-9498b0ec15da
Tip 4: Async Library Methods Shouldn't Lie
Feb 17, 2014 at 8:54AM@Joao, thanks for the pointer. I think that MSDN page has poor guidance. I'll contact the authors of it.
Tip 4: Async Library Methods Shouldn't Lie
Feb 17, 2014 at 8:53AM@squizfloats - You've got the right idea. This is a situation where the overall API design is forcing you to have an async signature, even though your method itself isn't async in its implementation.
Please watch the next video in the series. That discusses EXACTLY this case. Actually it discusses it in the guise of "MemoryStream". Obviously Stream has to have async APIs since most streams (disk, network, ...) are asynchronous in nature. But when you come to implement MemoryStream, it has no natural async implementation. And so it uses Task.FromResult exactly as you described.
The video talks about several useful micro-optimizations specifically for this case. Worth considering.
See more comments…