Comment Feed for Channel 9 - Async in ASP.NET http://media.ch9.ms/ch9/570a/cc6dcab8-f931-4efd-bea8-af169612570a/AsyncinASPNET_220.jpg Channel 9 - Async in ASP.NET Async is here and it's awesome, but how do you leverage for maximum affect in a server environment? When should you use async and what shouldn't you do to avoid headaches? Hear from the ASP.NET team about async support in ASP.NET, the features, the pitfalls and most importantly the use cases that make sense in the context of an ASP.NET application. en Tue, 21 May 2013 17:18:14 GMT Tue, 21 May 2013 17:18:14 GMT Rev9 Re: Async in ASP.NET expected!

posted by cindywant

]]> http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634780228630274742 Mon, 16 Jul 2012 08:07:43 GMT http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634780228630274742 cindywant Re: Async in ASP.NET We are waiting!

posted by WasimAlatrash

]]> http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634782390813885912 Wed, 18 Jul 2012 20:11:21 GMT http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634782390813885912 WasimAlatrash Re: Async in ASP.NET They sessions are coming soon folks, it takes a bit of time to get them online after the event (which was yesterday).

posted by Duncanma

]]> http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634782444229202932 Wed, 18 Jul 2012 21:40:22 GMT http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634782444229202932 Duncanma Re: Async in ASP.NET
-cheers

posted by Holt

]]> http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634782489035404092 Wed, 18 Jul 2012 22:55:03 GMT http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634782489035404092 Holt Re: Async in ASP.NET posted by Mike

]]> http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634782543092217994 Thu, 19 Jul 2012 00:25:09 GMT http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634782543092217994 Mike Re: Async in ASP.NET Thanks, guys! Great content!

In particular, thanks for not just showing "what works" but also the pitfalls. Smiley

Just a couple of notes:

  1. WhenAll will actually return the results of those tasks. So you can replace:
        await Task.WhenAll(results);
        return results.Select(t => t.Result);
    with:
        return await Task.WhenAll(results);
  2. I recommend that async/await users never use Task.Result (for the reasons you mentioned). There's a bit of overhead to use "await task" instead of "task.Result" on a completed Task, but the code is more obviously correct.

 

       -Steve

posted by Stephen_Cleary

]]> http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634783096288077831 Thu, 19 Jul 2012 15:47:08 GMT http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634783096288077831 Stephen_Cleary Re: Async in ASP.NET  

I like seeing the love for async/await, but don't understand why the only path mentioned for using it is 4.5?

The async targeting pack is awesome!  I'd much rather you told 4.0 peeps to use that instead of making it appear that they're stuck not being able to use async/await at all!

I'd much rather see those non-await options listed as 'stuck using VS2010' since the async targeting pack does require vs11/vs2012

 

http://nuget.org/packages/Microsoft.CompilerServices.AsyncTargetingPack/1.0.0

posted by james.manning

]]> http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634786018915846286 Mon, 23 Jul 2012 00:58:11 GMT http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634786018915846286 james.manning Re: Async in ASP.NET This is one of the most awesome recordings among all the Channel9 videos. Thanks all of you guys for an outstanding presentation and answering all of my questions during the session Smiley 

posted by Tugberk

]]> http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634787401940809083 Tue, 24 Jul 2012 15:23:14 GMT http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634787401940809083 Tugberk Re: Async in ASP.NET Thanks for making async available and easy for the 'rest' of us.

posted by dizzyguy

]]> http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634788211373424002 Wed, 25 Jul 2012 13:52:17 GMT http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634788211373424002 dizzyguy Re: Async in ASP.NET posted by Jim Lizzi

]]> http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634788395778342247 Wed, 25 Jul 2012 18:59:37 GMT http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634788395778342247 Jim Lizzi Re: Async in ASP.NET Super!!!

Great event,thx... Cool

posted by net_leo

]]> http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634789168495993332 Thu, 26 Jul 2012 16:27:29 GMT http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634789168495993332 net_leo Re: Async in ASP.NET Re: Asynchronous development in VS 2010, Some - and by some, I mean ALL of us have existing applications - many of which are firmly planted in <= Net 4.0 soil. We don't have the luxury of uprooting entire codesets overnight.

It has now been over a week. When are you going to post the video from Tibi's (@tibor19) talk??? His clever use of anonymous methods was excellent and unlike any other post/blog out there on the interwebs.

posted by DevDelimited

]]> http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634789235304796848 Thu, 26 Jul 2012 18:18:50 GMT http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634789235304796848 DevDelimited Re: Async in ASP.NET @Jim Lizzi:WebSockets in ASP.NET 4.5 requires IIS8 or IIS Express 8 on *Windows 8*. It is not available on Windows 7.

posted by DamianEdwards

]]> http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634790481931164511 Sat, 28 Jul 2012 04:56:33 GMT http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634790481931164511 DamianEdwards Re: Async in ASP.NET @DevDelimited:ok NOW I see it! It would have been helpful to categorize Day 2 sessions under Day 2.

 

http://channel9.msdn.com/Events/aspConf/aspConf/Fast-Faster-Async-ASP-NET 

posted by DevDelimited

]]> http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634792526503538196 Mon, 30 Jul 2012 13:44:10 GMT http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634792526503538196 DevDelimited Re: Async in ASP.NET Nice video guys. Great primer. I've never been more excited about the .net stack.

posted by christolo

]]> http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634805602473174375 Tue, 14 Aug 2012 16:57:27 GMT http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634805602473174375 christolo Re: Async in ASP.NET Can we use "async void" event handlers in web user control? I tried and failed with "An asynchronous operation cannot be started at this time. Asynchronous operations may   only be started within an asynchronous  handler or module or during certain events in the Page lifecycle. If  this exception occurred while executing a Page, ensure that the Page  is marked <%@ Page Async="true" %>.". And I'm pretty sure that I have enabled async for the container page.

posted by jack4it

]]> http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634979657586940284 Mon, 04 Mar 2013 03:49:18 GMT http://channel9.msdn.com/Events/aspConf/aspConf/Async-in-ASP-NET#c634979657586940284 jack4it