Comments on: Flex Data Binding Performance Pitfall http://www.jamesward.com/2008/08/27/flex-data-binding-performance-pitfall/ Rich Internet Applications | Flex | Adobe AIR | Java | Open Source | Linux | Enterprise Software | Cloud Wed, 10 Mar 2010 05:25:22 +0000 hourly 1 By: Roman http://www.jamesward.com/2008/08/27/flex-data-binding-performance-pitfall/comment-page-1/#comment-156078 Roman Thu, 12 Feb 2009 08:05:00 +0000 http://www.jamesward.com/wordpress/?p=388#comment-156078 <a href="#comment-126274" rel="nofollow">@Theo</a> Can you give me link/article/bokk about using commitProperties with Binding and problems with it. @Theo
Can you give me link/article/bokk about using commitProperties with Binding and problems with it.

]]> By: James Ward http://www.jamesward.com/2008/08/27/flex-data-binding-performance-pitfall/comment-page-1/#comment-143267 James Ward Sat, 10 Jan 2009 17:25:39 +0000 http://www.jamesward.com/wordpress/?p=388#comment-143267 Hi Krista, There are lots of ways to do that. And it also depends on if you want to do it the right way or the easy way. The easy way: - One big MXML file - HTTPService requests that get the data and bind it to the combo boxes - HTTPService that can send an update to the server There are <a href="http://www.adobe.com/devnet/flex/videotraining/" rel="nofollow">tutorials online</a> that can help you. And there is always my book <a href="http://www.firststepsinflex.com" rel="nofollow">First Steps in Flex</a> that will also help. Let me know how it goes. -James Hi Krista,

There are lots of ways to do that. And it also depends on if you want to do it the right way or the easy way. The easy way:
- One big MXML file
- HTTPService requests that get the data and bind it to the combo boxes
- HTTPService that can send an update to the server

There are tutorials online that can help you. And there is always my book First Steps in Flex that will also help.

Let me know how it goes.

-James

]]> By: Krista http://www.jamesward.com/2008/08/27/flex-data-binding-performance-pitfall/comment-page-1/#comment-140973 Krista Sat, 03 Jan 2009 20:10:34 +0000 http://www.jamesward.com/wordpress/?p=388#comment-140973 I am having trouble binding with what I thought was a simple problem. To track time I have created a 3 table database. Projects, Personnel and Trackers. I would like to get data from the projects and Personnel tables in order to populate combo boxes and commit new data to the trackers table. How do I do this? I am a rank amature... this is my first project, but I think it is going to help my company a ton. Thanks in advance for any help you can provide. Krista I am having trouble binding with what I thought was a simple problem. To track time I have created a 3 table database. Projects, Personnel and Trackers. I would like to get data from the projects and Personnel tables in order to populate combo boxes and commit new data to the trackers table. How do I do this? I am a rank amature… this is my first project, but I think it is going to help my company a ton.
Thanks in advance for any help you can provide.
Krista

]]> By: James Ward http://www.jamesward.com/2008/08/27/flex-data-binding-performance-pitfall/comment-page-1/#comment-127181 James Ward Wed, 10 Sep 2008 13:26:47 +0000 http://www.jamesward.com/wordpress/?p=388#comment-127181 Hi Alberto, Feel free to use anything on my blog for your presentation. Let me know how it goes. -James Hi Alberto,

Feel free to use anything on my blog for your presentation.

Let me know how it goes.

-James

]]> By: Alberto http://www.jamesward.com/2008/08/27/flex-data-binding-performance-pitfall/comment-page-1/#comment-127127 Alberto Tue, 09 Sep 2008 17:32:17 +0000 http://www.jamesward.com/wordpress/?p=388#comment-127127 Hi James, I'm preparing a presentation about performance optimization in Flex for an event in Madrid and was wondering if you'd mind if I use this example when talking 'bout bindings. Thanks in advanced! Regards Alberto Hi James, I’m preparing a presentation about performance optimization in Flex for an event in Madrid and was wondering if you’d mind if I use this example when talking ’bout bindings.

Thanks in advanced!

Regards

Alberto

]]> By: James Ward http://www.jamesward.com/2008/08/27/flex-data-binding-performance-pitfall/comment-page-1/#comment-126284 James Ward Thu, 28 Aug 2008 12:58:34 +0000 http://www.jamesward.com/wordpress/?p=388#comment-126284 Thanks Theo and bgen. Both of those are also good suggestions for dealing with this. Thanks Nick. Mike really knows this stuff inside and out. So I'll have to watch that talk. -James Thanks Theo and bgen. Both of those are also good suggestions for dealing with this.

Thanks Nick. Mike really knows this stuff inside and out. So I’ll have to watch that talk.

-James

]]> By: Nick Kwiatkowski http://www.jamesward.com/2008/08/27/flex-data-binding-performance-pitfall/comment-page-1/#comment-126283 Nick Kwiatkowski Thu, 28 Aug 2008 11:52:09 +0000 http://www.jamesward.com/wordpress/?p=388#comment-126283 Michael Labriola did an awesome presentation at 360|Flex on the same subject : http://link.brightcove.com/services/link/bcpid1733261879/bclid1729365228/bctid1741212660?src=mrss There is quite a bit of code that goes into making binding work.... Michael Labriola did an awesome presentation at 360|Flex on the same subject : http://link.brightcove.com/services/link/bcpid1733261879/bclid1729365228/bctid1741212660?src=mrss There is quite a bit of code that goes into making binding work….

]]> By: bgen http://www.jamesward.com/2008/08/27/flex-data-binding-performance-pitfall/comment-page-1/#comment-126281 bgen Thu, 28 Aug 2008 10:41:39 +0000 http://www.jamesward.com/wordpress/?p=388#comment-126281 What about using the event specifier with Bindable, i.e. [Bindable(event="ffCountChangeEvent")], then dispatching that event whenever you want the binding to occur? That would prevent the unneccessary overhead from occuring every time the property changes. This is just my first thought on what you've said, so there might be other implications I'm not considering... What about using the event specifier with Bindable, i.e. [Bindable(event="ffCountChangeEvent")], then dispatching that event whenever you want the binding to occur? That would prevent the unneccessary overhead from occuring every time the property changes. This is just my first thought on what you’ve said, so there might be other implications I’m not considering…

]]> By: Theo http://www.jamesward.com/2008/08/27/flex-data-binding-performance-pitfall/comment-page-1/#comment-126274 Theo Thu, 28 Aug 2008 06:52:45 +0000 http://www.jamesward.com/wordpress/?p=388#comment-126274 Bindings are great for automatic updates, but more than often they should be used in conjunction with commitProperties. That is, instead of binding directly to a property you can use BindingUtils.bindSetter and call invalidateProperties when the bound value changes. That way you will only update once every frame, regardless of how many times the bindable property changes. Bindings are great for automatic updates, but more than often they should be used in conjunction with commitProperties. That is, instead of binding directly to a property you can use BindingUtils.bindSetter and call invalidateProperties when the bound value changes. That way you will only update once every frame, regardless of how many times the bindable property changes.

]]>