RE: [flexcoders] ComboBox selectedIndex revisited
You have a lot of stuff happening in there. Did you debug it to see why
it was not working? Particularly the computeSelectedDateRangeIndex()
function? Was it being called when you expected?
Tracy Spratt
Lariat Services
Flex development bandwidth available
From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On
Behalf Of Richard Rodseth
Sent: Monday, January 26, 2009 4:46 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] ComboBox selectedIndex revisited
I see there was another long thread about this problematic component
back in October (Dan Pride)
I don't see why this shouldn't work:
mx:ComboBox id=dateRangePresetCombo
dataProvider={this.availableRanges}
selectedIndex={this.computeSelectedDateRangeIndex(this.selectedDateRang
ePreset, this.availableRanges)}
rowCount={availableRanges.length}
labelFunction=labelFunction
change=onDateRangePresetSelected(event) /
where selectedDateRangeIndex() scans the available ranges, and
this.selectedDateRangePreset and this.availableRanges are bindable. But
it doesn't. When the component is first created, the combobox appears
with the first item selected (sometimes).
I believe Dan's workaround involved callLater(). I just had some success
with the following:
mx:ComboBox id=dateRangePresetCombo
dataProvider={this.availableRanges}
selectedIndex={this.computeSelectedIndex(this.selectedDateRangePreset,
this.availableRanges)}
rowCount={availableRanges.length}
labelFunction=labelFunction
added=onComboBoxCreation(event)
change=onDateRangePresetSelected(event) /
where on onComboBoxCreation() calls computeSelectedIndex() and sets
dateRangePresetCombo.selectedIndex.
Doing it on creationComplete rather than added results in flicker as
the item changes from item1, but using the added event seems to do the
trick.
I'm pretty sure there's a bug in ComboBox. Probably not invalidating
properties or the display list when it should.
Hope this helps someone, and please set me straight if I'm wrong.
Re: [flexcoders] comboBox selectedIndex
If you know what index (n) you want to set it to, comboBox.selectedIndex = n; Adrian Gökhan wrote: How can i change the selectedIndex of a comboBox ? The selectedIndex is get 0 in any case. isn't it writeable ?
RE: [flexcoders] ComboBox SelectedIndex HELP!
Binding to functions is tricky. It doesn't know when its value changed.
Binding to something that does is better. The function probably gets
run at init time and errors which is eaten by Binding then never knows
that the results came back. I would set selectedIndex in the results
handler.
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of hammer995
Sent: Monday, September 17, 2007 2:51 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] ComboBox SelectedIndex HELP!
So I have an edit form which I have several combobox's that I can
populate successfully from static arrays. So I want to duplicate this
with results from an HTTPService.
For some reason, the selectedIndex property does not run the function
for selecting the data to be shown by default.
The HTTPService gets launched at creationComplete when the user
selects the edit component.
I actually never get the trace in the findIndexAcct so that leads me
to believe that it never gets executed.
This is my code:
!-- COMBO BOX --
mx:ComboBox id=acctComboBox width=115
dataProvider={getAcctListOnly.lastResult.customers.customer}
close=selectedItemAcct=ComboBox(event.target).selectedItem
openDuration=500 openEasingFunction=Bounce.easeOut
closeDuration=500
closeEasingFunction=Bounce.easeIn
selectedIndex={findIndexAcct(data.acct)}
alternatingItemColors=[0xDFDFDF, 0xEE]
labelField=acct
cornerRadius=5/
!-- FUNCTION --
[Bindable]
public var acctArray:ArrayCollection;
private function
getAcctListResultHandler(event:ResultEvent): void {
acctArray = event.result.customers.customer as ArrayCollection;
/*
for (var i:int = 0; i acctArray.length; i++) {
trace(acctArray[i].acct);
} */
}
private function findIndexAcct(acct:String):int {
var index:int = -1;
for (var i:int = 0; i acctArray.length; i++) {
if ( acct == acctArray[i].acct) {
index = i;
}
}
trace(index);
return index;
}
Re: [flexcoders] ComboBox, selectedIndex property
Hi Valy
That's perfect scense of use, the selectedItem claims to use to select some
values into the array of binded component and in other hands selectedIndex
it's to select the first item of this component. You don't have to do much
more if you can do this into a function then you will need to use the
creationComplete Property.
Best.
On 2/8/07, Valy Sivec [EMAIL PROTECTED] wrote:
If I declare mx:ComboBox id =cb selectedIndex=-1
dataProvider={dp} and have the data provider populated, it seems that
the first row from the dataprovider shows as selected; if I do
cb.selectedIndex = -1 on creation complete event of the main app it works
as expected.
Am I missing something here?
Regards,
Valy
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skype: igorpcosta
Re: [flexcoders] ComboBox, selectedIndex property
Thanks for the answer, it's clear now, the API is very clear in this regard,
but haven't checked before posting the question... my bad.
Valy
- Original Message
From: Igor Costa [EMAIL PROTECTED]
To: flexcoders@yahoogroups.com
Sent: Thursday, February 8, 2007 5:23:01 AM
Subject: Re: [flexcoders] ComboBox, selectedIndex property
Hi Valy
That's perfect scense of use, the selectedItem claims to use to select some
values into the array of binded component and in other hands selectedIndex it's
to select the first item of this component. You don't have to do much more if
you can do this into a function then you will need to use the creationComplete
Property.
Best.
On 2/8/07, Valy Sivec valysivec27@ yahoo.com wrote:
If I declare mx:ComboBox id =cb selectedIndex=-1 dataProvider={dp} and
have the data provider populated, it seems that the first row from the
dataprovider shows as selected; if I do
cb.selectedIndex = -1 on creation complete event of the main app it works as
expected.
Am I missing something here?
Regards,
Valy
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Igor Costa
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Re: [flexcoders] combobox selectedIndex
Title: Mercury Email Signature
Shlomi,
There's nothing wrong with the code that you have posted below.
Only reason why I think this would not work is if you have only 2 items
in the ComboBox!
If not, try this as well
mx:ComboBox id="intervalCMB"dataProvider="{intervals}"
initialize="intervalCMB.selectedIndex="2" /
Sree
Shlomi Cohen wrote:
Hi
Does
anyone know how to set an initial selected index on a Combo (for edit
dialog for example)
i
have tried this code and it doesn't work .
mx:ComboBox id="intervalCMB"dataProvider="{intervals}"
selectedIndex="2" /
thanks
Shlomi
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RE: [flexcoders] combobox selectedIndex
Title: Mercury Email Signature
Shlomi,
One possibility is that you are setting the index of the combobox before
the databinding fires. Thus:
1. It attempts to set the index to 2.
2. It sees the dataprovider has length 0.
3. It silently fails at runtime.
some time goes by
4. The dataprovider is populated by
databinding.
You might want to try this:
private function getMySelectedIndex(intervals:Object):Number
{
return(2);
}
mx:ComboBox id="intervalCMB"dataProvider="{intervals}"selectedIndex="{getMySelectedIndex(intervals)}"/
When 'intervals' changes it fires off a call to the local function
getMySelectedIndex via databinding.
HTH,
Allen
Allen
Manning, Technical Director
Prismix
Ltd t: +44 (0)870 749 1100 f: +44
(0)870 749 1200 w: www.prismix.com
From: flexcoders@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Sreejith
UnnikrishnanSent: 17 May 2005 14:34To:
flexcoders@yahoogroups.comSubject: Re: [flexcoders] combobox
selectedIndex
Shlomi,There's nothing wrong
with the code that you have posted below.Only reason why I think this would
not work is if you have only 2 items in the ComboBox!If not, try this as
wellmx:ComboBox id="intervalCMB"dataProvider="{intervals}"
initialize="intervalCMB.selectedIndex="2"
/SreeShlomi Cohen wrote:
Hi
Does anyone
know how to set an initial selected index on a Combo (for edit dialog for
example)
i have tried
this code and it doesn't work .
mx:ComboBox id="intervalCMB"dataProvider="{intervals}"
selectedIndex="2" /thanks
Shlomi__This
email has been scanned by the MessageLabs Email Security System.For more
information please visit http://www.messagelabs.com/email
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