I usually use the selectedIndex property and use a function to return the index
of item corresponding to my id.
<mx:ComboBox dataProvider="{myDp}"
selectedIndex="{myfunction(myDp,idfield,idvalue)}">
So each item any of those changes, my selecedIndex get updated.
João Fernandes
Secção de Desenvolvimento
Departamento de Informática
-----Original Message-----
From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of
im_sean_s
Sent: quarta-feira, 30 de Novembro de 2005 15:11
To: [email protected]
Subject: [flexcoders] Newbie Question
If this type of question has been answered before, I appologize, but the new
Yahoo! Groups message search really sucks!
Anyway, I'm fairly new to Flex and am working on a project using the Cairngorm
framework. In the project I have a form that is bounded to a sharedObject in
order to save the user's responses in case they do not complete the form in one
sitting. When the user returns to the form, I reload the fields with the
values stored in the sharedObject.
All works fine with text fields and check boxes. The problem comes with a
couple drop-down fields. Basically, when the form is loaded I call back to the
CF server to retrieve a list of values to populate the drop-down, and set an
array variable in my ModelLocator, which is bound as the data provider to the
drop-down. The problem I have is that I can't figure out how to set the
selectedItem after the drop-down is populated. I tried to create a function
that accepted the ModelLocator Array and set it then, but that does not seem to
work. Anyone else have any suggestions?
Thanks,
Sean
-------------------------------------------------------------------
View
-------------------------------------------------------------------
<mx:Panel xmlns:mx="http://www.macromedia.com/2003/mxml";
xmlns:GroupFormHelpers =
"com.hopeequity.view.form.helpers.*"
width="100%" height="100%" title="Group Manager
Information"
creationComplete="GroupFormStep1Helper.initalizeForm();" >
<mx:Script>
<![CDATA[
import com.hopeequity.model.ModelLocator;
import com.hopeequity.vo.CountryVO;
import com.hopeequity.vo.StateVO;
public var formModel:Object;
]]>
</mx:Script>
<GroupFormHelpers:Step1Helper id="GroupFormStep1Helper" />
...
<mx:ComboBox id="Country" editable="false"
dataProvider="{ModelLocator.countries.sortOn(['OUTPUTORDER'],16)}"
labelField="COUNTRYNAME" width="{FirstName.width}"/>
...
-------------------------------------------------------------------
View Helper
-------------------------------------------------------------------
...
public function initalizeForm()
{
EventBroadcaster.getInstance().broadcastEvent("getCountriesWithStates");
}
...
-------------------------------------------------------------------
Command File
-------------------------------------------------------------------
class com.hopeequity.command.GetCountriesWithStatesCMD implements Command,
Responder {
public function GetCountriesWithStatesCMD()
{
}
public function execute( event : Event ):Void
{
if (ModelLocator.countries.length < 1)
{
var delegate : CountryDelegate = new CountryDelegate(
this );
delegate.getCountriesWithStates(event);
}
}
public function onResult( event : Object ) : Void
{
ModelLocator.countries = event.result;
}
public function onFault( event : Object ) : Void
{
mx.core.Application.alert( event.fault.faultstring );
}
}
-------------------------------------------------------------------
Model Locator
-------------------------------------------------------------------
...
public static function initialise() : Void { ModelLocator.countries = new
Array(); }
public static var countries : Array;
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