Re: [flexcoders] DataBinding Question
Thanks Tracey this is what I'd discovered.
I hadn't realised that:
mx:whatever dataProvider={arrDataSource} /
is different to:
function setSomething()
{
myComponent.dataProvider = arrDataSource
}
So I'm assuming that basically the {} in mxml does all the event wiring to
actually Bind the dataProvider whereas just setting the dataProvider in
actionscript just sets it the once.
Thanks,
Dan
On 11/03/2008, Tracy Spratt [EMAIL PROTECTED] wrote:
…My ArrayCollection is really only going to be set once… Don't bind.
Set the dataProvider explicitly.
Tracy
--
*From:* flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] *On
Behalf Of *DannyT
*Sent:* Tuesday, March 11, 2008 5:15 AM
*To:* flexcoders@yahoogroups.com
*Subject:* [flexcoders] DataBinding Question
I have a DataModel singleton which contains an arrayCollection to which I
am binding a repeater.
My DataModel also has a selectedItem property which I am binding another
component to.
When I update my selectedItem my repeater seems to be refreshing it's bind
(the repeater's items contain children that are disappearing when I set the
selectedItem).
Is it expected that all properties of a class will refresh their bindings
when any property changes? My ArrayCollection is really only going to be set
once so I'd almost like to populate my repeater then 'break' that bind if
that's possible? Or if anyone can suggest a better solution I'd be very
grateful.
Dan
--
http://danny-t.co.uk
--
http://danny-t.co.uk
RE: [flexcoders] DataBinding Question
...My ArrayCollection is really only going to be set once... Don't bind. Set the dataProvider explicitly. Tracy From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of DannyT Sent: Tuesday, March 11, 2008 5:15 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] DataBinding Question I have a DataModel singleton which contains an arrayCollection to which I am binding a repeater. My DataModel also has a selectedItem property which I am binding another component to. When I update my selectedItem my repeater seems to be refreshing it's bind (the repeater's items contain children that are disappearing when I set the selectedItem). Is it expected that all properties of a class will refresh their bindings when any property changes? My ArrayCollection is really only going to be set once so I'd almost like to populate my repeater then 'break' that bind if that's possible? Or if anyone can suggest a better solution I'd be very grateful. Dan -- http://danny-t.co.uk http://danny-t.co.uk
[flexcoders] databinding question
Quick question...why are these different:
merlin:ReportingDatesPanel width=100%
height=100% portfolio={selectedPortfolio} /
Versus:
mainContent.createChild(ReportingDatesPanel, , {width:
100%, height: 100%, portfolio: selectedPortfolio});
When the selectedPortfolio object changes in the main app with the MXML
in first example above, the custom component recognizes the change in the
selectedPortfolio object and performs the correct action.
If I have the main application dynamically create the custom component
with the code in the 2nd example above, if the selectedPortfolio
object changes, the dynamically created custom component does not see that
change and none of the actions that I want to take place, actually take
place. Im guessing this is a databinding issueam I supposed
to set the portfolio attribute differently to catch changes in this object when
dynamically creating the custom component?
Any help is greatly appreciated.
Thanks,
Rob
robert l. brueckmann
senior web developer
merlin securities
595 madison avenue
new york,
ny 10022
p: 212.822.4821
f: 212.822.4820
This message contains information fromMerlin Securities, LLC, or from one of its affiliates, that may be confidential and privileged. If you are not an intended recipient, please refrain from any disclosure, copying, distribution or use of this information and note that such actions are prohibited. If you have received this transmission in error, please notify the sender immediately by telephone or by replying to this transmission.
Merlin Securities, LLC is a registered broker-dealer. Services offered throughMerlin Securities, LLC are not insured by the FDIC or any other Federal Government Agency, are not deposits of or guaranteed byMerlin Securities, LLCand may lose value. Nothing in this communication shall constitute a solicitation or recommendation to buy or sell a particular security.
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RE: [flexcoders] databinding question
Nevermind, I just found a past post from
Matt saying databinding can only be done from MXML right now and not
programmatically. Sorry for the post!
robert l. brueckmann
senior web developer
merlin securities
595 madison avenue
new york,ny 10022
p: 212.822.4821
f: 212.822.4820
From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of Robert Brueckmann
Sent: Tuesday, August 02, 2005
4:37 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] databinding
question
Quick question...why are these different:
merlin:ReportingDatesPanel width=100%
height=100% portfolio={selectedPortfolio} /
Versus:
mainContent.createChild(ReportingDatesPanel, , {width:
100%, height: 100%, portfolio: selectedPortfolio});
When the selectedPortfolio object changes in the main app with the MXML
in first example above, the custom component recognizes the change in the
selectedPortfolio object and performs the correct action.
If I have the main application dynamically create the custom component
with the code in the 2nd example above, if the selectedPortfolio
object changes, the dynamically created custom component does not see that
change and none of the actions that I want to take place, actually take
place. Im guessing this is a databinding issueam I supposed
to set the portfolio attribute differently to catch changes in this object when
dynamically creating the custom component?
Any help is greatly appreciated.
Thanks,
Rob
robert l. brueckmann
senior web developer
merlin securities
595 madison avenue
new york,
ny 10022
p: 212.822.4821
f: 212.822.4820
This message contains information
fromMerlin Securities, LLC, or from one of its affiliates, that may be
confidential and privileged. If you are not an intended recipient, please
refrain from any disclosure, copying, distribution or use of this information
and note that such actions are prohibited. If you have received this
transmission in error, please notify the sender immediately by telephone or by
replying to this transmission.
Merlin Securities, LLC is a registered
broker-dealer. Services offered throughMerlin Securities, LLC are not insured
by the FDIC or any other Federal Government Agency, are not deposits of or
guaranteed byMerlin Securities, LLCand may lose value. Nothing in
this communication shall constitute a solicitation or recommendation to buy or
sell a particular security.
This message contains information fromMerlin Securities, LLC, or from one of its affiliates, that may be confidential and privileged. If you are not an intended recipient, please refrain from any disclosure, copying, distribution or use of this information and note that such actions are prohibited. If you have received this transmission in error, please notify the sender immediately by telephone or by replying to this transmission.
Merlin Securities, LLC is a registered broker-dealer. Services offered throughMerlin Securities, LLC are not insured by the FDIC or any other Federal Government Agency, are not deposits of or guaranteed byMerlin Securities, LLCand may lose value. Nothing in this communication shall constitute a solicitation or recommendation to buy or sell a particular security.
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RE: [flexcoders] databinding question
Its probably because of the way
they are instantiated. dispatchEvent() is a mix-in from UIEventDispatcher.
You might try adding ChangeEvent to the
component once it is created. Just a thought.
Hey, Im at 11 Madison Ave.
Regards,
Rob Rusher
RIA Consultant
Macromedia Certified Flex Instructor
e:[EMAIL PROTECTED]
c:303.885.7044 im:robrusher
From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of Robert Brueckmann
Sent: Tuesday, August 02, 2005
4:37 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] databinding
question
Quick question...why are these different:
merlin:ReportingDatesPanel width=100%
height=100% portfolio={selectedPortfolio} /
Versus:
mainContent.createChild(ReportingDatesPanel, , {width:
100%, height: 100%, portfolio: selectedPortfolio});
When the selectedPortfolio object changes in the main app with the MXML
in first example above, the custom component recognizes the change in the
selectedPortfolio object and performs the correct action.
If I have the main application dynamically create the custom component
with the code in the 2nd example above, if the selectedPortfolio
object changes, the dynamically created custom component does not see that
change and none of the actions that I want to take place, actually take
place. Im guessing this is a databinding issueam I supposed
to set the portfolio attribute differently to catch changes in this object when
dynamically creating the custom component?
Any help is greatly appreciated.
Thanks,
Rob
robert l. brueckmann
senior web developer
merlin securities
595 madison avenue
new york,
ny 10022
p: 212.822.4821
f: 212.822.4820
This message contains information
fromMerlin Securities, LLC, or from one of its affiliates, that may be
confidential and privileged. If you are not an intended recipient, please
refrain from any disclosure, copying, distribution or use of this information
and note that such actions are prohibited. If you have received this
transmission in error, please notify the sender immediately by telephone or by
replying to this transmission.
Merlin Securities, LLC is a registered
broker-dealer. Services offered throughMerlin Securities, LLC are not insured
by the FDIC or any other Federal Government Agency, are not deposits of or
guaranteed byMerlin Securities, LLCand may lose value. Nothing in
this communication shall constitute a solicitation or recommendation to buy or
sell a particular security.
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Re: [flexcoders] databinding question
Hi,
Databinding is a special beast in flex, and is set up in mxml-as compiling
The compiler needs the metadata to figure out what events it has to
listen to for each property (or perhaps just use getters setters). It
then sets up a complex mechanism of watchers and stuff to make binding
happen.
This is the reason why it is only supported in mxml for now.
If you want the same functionality on runtime you have some choices:
- use the old flash binding api ( not possible I assume )
- create your own
- wait for as2lib's future release. I'll be donating a quite powerful
databinding framework soon (well, not that soon if work keeps me this
busy )
it is flex compatible, supports chains and different types of watchers.
Best,
Aldo
PD: Sorry for the delay Simon, I've been busy as hell at work.
On 8/2/05, Rob Rusher [EMAIL PROTECTED] wrote:
It's probably because of the way they are instantiated. dispatchEvent() is a
mix-in from UIEventDispatcher.
You might try adding ChangeEvent to the component once it is created. Just a
thought.
Hey, I'm at 11 Madison Ave.
Regards,
Rob Rusher
RIA Consultant
Macromedia Certified Flex Instructor
e:[EMAIL PROTECTED] c:303.885.7044 im:robrusher
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Robert Brueckmann
Sent: Tuesday, August 02, 2005 4:37 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] databinding question
Quick question...why are these different:
merlin:ReportingDatesPanel width=100% height=100%
portfolio={selectedPortfolio} /
Versus:
mainContent.createChild(ReportingDatesPanel, , {width: 100%, height:
100%, portfolio: selectedPortfolio});
When the selectedPortfolio object changes in the main app with the MXML in
first example above, the custom component recognizes the change in the
selectedPortfolio object and performs the correct action.
If I have the main application dynamically create the custom component with
the code in the 2nd example above, if the selectedPortfolio object changes,
the dynamically created custom component does not see that change and none
of the actions that I want to take place, actually take place. I'm guessing
this is a databinding issue…am I supposed to set the portfolio attribute
differently to catch changes in this object when dynamically creating the
custom component?
Any help is greatly appreciated.
Thanks,
Rob
robert l. brueckmann
senior web developer
merlin securities
595 madison avenue
new york, ny 10022
p: 212.822.4821
f: 212.822.4820
This message contains information from Merlin Securities, LLC, or from one
of its affiliates, that may be confidential and privileged. If you are not
an intended recipient, please refrain from any disclosure, copying,
distribution or use of this information and note that such actions are
prohibited. If you have received this transmission in error, please notify
the sender immediately by telephone or by replying to this transmission.
Merlin Securities, LLC is a registered broker-dealer. Services offered
through Merlin Securities, LLC are not insured by the FDIC or any other
Federal Government Agency, are not deposits of or guaranteed by Merlin
Securities, LLC and may lose value. Nothing in this communication shall
constitute a solicitation or recommendation to buy or sell a particular
security.
--
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RE: [flexcoders] databinding question
Gotchya on both accounts! Thanks for the feedback guys!
robert l. brueckmann
senior web developer
merlin securities
595 madison avenue
new york, ny 10022
p: 212.822.4821
f: 212.822.4820
-Original Message-
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Aldo
Bucchi
Sent: Tuesday, August 02, 2005 6:16 PM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] databinding question
Hi,
Databinding is a special beast in flex, and is set up in mxml-as compiling
The compiler needs the metadata to figure out what events it has to
listen to for each property (or perhaps just use getters setters). It
then sets up a complex mechanism of watchers and stuff to make binding
happen.
This is the reason why it is only supported in mxml for now.
If you want the same functionality on runtime you have some choices:
- use the old flash binding api ( not possible I assume )
- create your own
- wait for as2lib's future release. I'll be donating a quite powerful
databinding framework soon (well, not that soon if work keeps me this
busy )
it is flex compatible, supports chains and different types of watchers.
Best,
Aldo
PD: Sorry for the delay Simon, I've been busy as hell at work.
On 8/2/05, Rob Rusher [EMAIL PROTECTED] wrote:
It's probably because of the way they are instantiated. dispatchEvent() is a
mix-in from UIEventDispatcher.
You might try adding ChangeEvent to the component once it is created. Just a
thought.
Hey, I'm at 11 Madison Ave.
Regards,
Rob Rusher
RIA Consultant
Macromedia Certified Flex Instructor
e:[EMAIL PROTECTED] c:303.885.7044 im:robrusher
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Robert Brueckmann
Sent: Tuesday, August 02, 2005 4:37 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] databinding question
Quick question...why are these different:
merlin:ReportingDatesPanel width=100% height=100%
portfolio={selectedPortfolio} /
Versus:
mainContent.createChild(ReportingDatesPanel, , {width: 100%, height:
100%, portfolio: selectedPortfolio});
When the selectedPortfolio object changes in the main app with the MXML in
first example above, the custom component recognizes the change in the
selectedPortfolio object and performs the correct action.
If I have the main application dynamically create the custom component with
the code in the 2nd example above, if the selectedPortfolio object changes,
the dynamically created custom component does not see that change and none
of the actions that I want to take place, actually take place. I'm guessing
this is a databinding issue...am I supposed to set the portfolio attribute
differently to catch changes in this object when dynamically creating the
custom component?
Any help is greatly appreciated.
Thanks,
Rob
robert l. brueckmann
senior web developer
merlin securities
595 madison avenue
new york, ny 10022
p: 212.822.4821
f: 212.822.4820
This message contains information from Merlin Securities, LLC, or from one
of its affiliates, that may be confidential and privileged. If you are not
an intended recipient, please refrain from any disclosure, copying,
distribution or use of this information and note that such actions are
prohibited. If you have received this transmission in error, please notify
the sender immediately by telephone or by replying to this transmission.
Merlin Securities, LLC is a registered broker-dealer. Services offered
through Merlin Securities, LLC are not insured by the FDIC or any other
Federal Government Agency, are not deposits of or guaranteed by Merlin
Securities, LLC and may lose value. Nothing in this communication shall
constitute a solicitation or recommendation to buy or sell a particular
security.
--
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