Lucian's VBlog

[This post is part of a series How to await a storyboard, and other things ] Sometimes we want to await until a button has been clicked. Once place where this is useful is, for instance, when displaying the message “Click button to continue”...

I’m a big fan of supporting cancellation on async methods. I was recently wondering how to do this for HttpClient.GetStringAsync(). This post has some answers. Async Function TestAsync(uri As Uri , Optional cancel As CancellationToken = Nothing...

[This post is part of a series How to await a storyboard, and other things ] The normal behavior of the "await" operator on a task is to suspend execution of the method; then, when the task operand has finished, to resume execution on the same SynchronizationContext...

Talk: Async Part 2 - for architects, under the hood This talk tackles some more advanced async topics. Async idioms - the "TAP" Task Asynchronous Pattern, when and when not to expose async APIs, the unexpected trouble with Task.Yield Integrating...

How do you combine MVVM with async? -- Well, really, there's not much to it. Just the same as always. Here's an example Silverlight MVVM project. It first shipped with the Async CTP, and I've updated it to use VS2012 and Microsoft.Bcl.Async. Download...

[This post is part of a series How to await a storyboard, and other things ] Let’s look at making MediaElement awaitable. This is the kind of idiom I’d like to use: Try Await mediaElement1.OpenAsync( New Uri ( "ms-appx:///Assets...

[This post is part of a series How to await a storyboard, and other things ] In my app, I want to await a drag operation. Here’s how I’d like to await it: Private Async Sub rectangle1_PointerPressed(sender As Object , e As PointerRoutedEventArgs...

In VS2012 we fixed some method-resolution problems from VS2010. These were method-calls that failed to compile in VS2010, but now compile cleanly in VS2012. VB: Dim numbers As IEnumerable ( Of Integer ) = {1, 2, 3} Sub f( Of T )(x As T ) Sub...

[This post is part of a series, " wish-list for future versions of VB "] IDEA: Attribute Targets. We should allow some more attribute targets of the form < Target : SomeAttribute ( )> . Currently the only permitted targets are Assembly: and Module...

Hello! I'm starting this blog as a way to communicate with VB users -- to hear what you want, to answer what questions I can, and to share my ideas about things the language could include in the future. I've recently become the Visual Basic specification...

Check out the license plates on my new motorcycle!

Hello from PDC! The VB session was here: http://microsoftpdc.com/Sessions/FT32 - I'll post the code from it shortly, and let you know when the video goes live. The talk covered many of the new features in VB10, and showed a Silverlight4 application...

Sometimes you want to launch an external utility and send input to it and also capture its output. But it's easy to run into deadlock this way... ' BAD CODE Using p As New System.Diagnostics.Process p.StartInfo.FileName = "cat" p.StartInfo...

This blog article has been moved and enhanced: http://blogs.msdn.com/b/lucian/archive/2011/05/20/talk-how-to-write-an-async-connected-app-for-windows-phone-7.aspx

Here's how to write a VS2010 extension (".vsix") in Visual Basic. The code is made a lot easier thanks to one of the major new features in Visual Basic 10, "statement lambdas". This extension renders comments in a new typeface, Comic Sans Bold Italic...

Talk: How to write an [Async] connected app for Windows Phone 7.1 This talk is all about writing a connected app for the Windows Phone. The talk covered: (1) Azure/WP7 toolkit for the server-side of the phone app. Most good phone apps will need some...

Talk: What's new in VB10 (VS2010) This talk details the new VB language features that arrived in VS2010 -- Implicit Line Continuations - http://www.unemployedunderscores.com/ Array Literals Collection Initializers Auto-implemented Properties Multi...

Async CTP Refresh - its state and direction We really appreciate everyone who has installed the Async CTP. It has given us tremendous feedback. We appreciate all the discussion and bug reports that have come from users. We made the CTP uninstallable...