Looks like you bound to _sample_ac and not sample_ac (without the
underscore). (also I wouldn’t pass true/true to new Event, just pass “sampleChanged”).
Matt
From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of John Crosby
Sent: Thursday, November 03, 2005
12:30 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Problems
Databinding to Custom Properties (Flex 2.0)
I get the compile warning - 'Unable
to detect changes to "_sample_ac".' and the binding I have set up won't update unless I
manually capture the event and update the controls' text property myself.
I was under the inpression that Flex
would watch for changes and update the binding chain if the getters/setters
were set up as in the code below.
[Updated Code]
package com {
public class DataVO {
import flash.events.*;
...
[Bindable(event="sampleChanged")]
public function get
sample_ac():ArrayCollection
{
return _sample_ac;
}
public function set sample_ac(value:ArrayCollection):Void
{
_sample_ac = value;
dispatchEvent(new
Event("sampleChanged", true, true);
}
}
}
From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of JesterXL
Sent: Thursday, November 03, 2005
11:43 AM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders]
dispatchEvent troubles (Flex 2.0)
Er, don't know G, haven't done binding in Flex 2 yet, sorry!
----- Original Message -----
Sent: Thursday, November
03, 2005 11:31 AM
Subject: RE: [flexcoders]
dispatchEvent troubles (Flex 2.0)
Thanks!
That removed the compile error.
I still get the compile warning -
'Unable to detect changes to "_sample_ac".' and the binding I have set up won't update unless I
manually capture the event and update the controls' text property myself.
I was under the inpression that Flex
would watch for changes and update the binding chain if the getters/setters
were set up as in the code below.
Thanks again!
- John
[Updated Code]
package com {
public class DataVO {
import flash.events.*;
...
[Bindable(event="sampleChanged")]
public function get sample_ac():ArrayCollection
{
return _sample_ac;
}
public function set sample_ac(value:ArrayCollection):Void
{
_sample_ac = value;
dispatchEvent(new
Event("sampleChanged", true, true);
}
}
}
From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of JesterXL
Sent: Thursday, November 03, 2005
8:14 AM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders]
dispatchEvent troubles (Flex 2.0)
Just guessing, but your DataVO doesn't extend
EventDispatcher, only Object; try extending him so you'll get all the
addEventListener/removeEventListener/dispatchEvent functions.
----- Original Message -----
Sent: Wednesday,
November 02, 2005 10:41 PM
Subject: [flexcoders]
dispatchEvent troubles (Flex 2.0)
I'm having trouble with dispatchEvent in an AS 3.0 Class:
package com {
public class DataVO {
import flash.events.*;
...
[Bindable("sampleChanged")]
public function get sample_ac():ArrayCollection
{
return _sample_ac;
}
public function set sample_ac(value:ArrayCollection):Void
{
_sample_ac = value;
var evt:Event = n! ew
Event("sampleChanged", true, true);
dispatchEvent(evt);
}
}
}
I get the compile error: Access of undefined property dispatchEvent
Any help would be appreciated. TIA.
- John Crosby
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