Comments on: Data binding in Flex

By: shan

shan — Tue, 27 Sep 2011 11:00:58 +0000

Very nice example and clear explanation.Thanks for sharing.

By: Mark

Mark — Wed, 17 Mar 2010 22:14:28 +0000

Could these binding utils be used to bind the text of a RTE (including the size/weight/color/etc…) to a label/text area? I’ve set the function up to bind between a RTE and a label, but it won’t carry over the weight/size/color of the text. It will on the other hand carry over the font type. Am I missing something? I have a feeling it’s something to do with the fontarrays and the like with the RTE, but I was wondering if I could get some input on this.

Thanks.

By: Marc de Kwant

Marc de Kwant — Wed, 20 Jan 2010 09:07:49 +0000

Since bi-directional binding is not supported in Flex 3, you can use a mapping file and a binder class using the mapping file to support bi-directional binding. Furthermore this will reduce code and extract the mapping/binding concern from your main application code. Sample: Flex binding Kind regards, Marc

By: Anne

Anne — Mon, 14 Sep 2009 20:08:34 +0000

By the way, the error I am getting is something like “Record is locked and can’t be saved” – this only occurs in the for loop, not in the single call (which works/updates correctly)

By: Anne

Anne — Mon, 14 Sep 2009 20:06:29 +0000

Peter,

Thanks for the site – I refer to it frequently. On to the matter at hand:

I am attempting to bind an object’s property to another object’s property for writing to a mySQL database. It works correctly, however, I need to do this task a dynamic number of times based on user interaction with the datagrid (based on how many items they have selected in the “multipleSelectionsAllowed” datagrid).

code is something like:
for each (var obj:Object in myObjCollection) //myObjCollection is the list of selected items in datagrid { BindingUtils.bindProperty(_destObj, "myProp", obj, "myProp"); var asyncToken:AsyncToken = _destObj.save(); }
where destObj is defined as the same type object as obj

The line “var asyncToken:AsyncToken = _destObj.save();” works fine outside of the loop with a separate binding of source/dest in but only does this for one item, not each in the list.

Any help is much appreciated :D

By: Peter deHaan

Peter deHaan — Tue, 28 Jul 2009 13:42:57 +0000

Works for me on Vista 64 w/ Google Chrome 2.0.172.33.

By: Alograg

Alograg — Mon, 27 Jul 2009 22:59:51 +0000

This post not render on Chrome.

By: xueyu

xueyu — Fri, 24 Jul 2009 11:59:00 +0000

very nice example, thank you very much!

By: Webdevotion

Webdevotion — Mon, 20 Apr 2009 06:15:39 +0000

Another way could be to use Actionscript only as described in a blogpost of mine. It shows you how you can bind to a component and use a labelFunction to return a value, instead of the actual value (e.g.: a formatted datestring instead of a date object).

http://webdevotion.be/blog/2009/04/20/binding-between-a-datefield-and-a-button-label-at-runtime/

By: simon

simon — Wed, 08 Apr 2009 01:03:18 +0000

A few examples of how to use the binding utilities with Objects and ArrayCollections would be most appreciated too.