Well, it's better practice to update the model with an event/command anyway. No idea why the selectedItem isn't working through the event. Another approach would be:
MyModel.getInstance().SelectedBudgetVO = myDataGrid.selectedItem as BudgetVO; -TH --- In [email protected], "Greg Morphis" <[EMAIL PROTECTED]> wrote: > > Also this returns null > > Alert.show(MyModel.getInstance().SelectedBudgetVO.amount.toString()); > > (trying it right after assigned the event.target.selectedItem to the > SelectedBudgetVO) > > On Tue, Oct 7, 2008 at 10:30 AM, Greg Morphis [EMAIL PROTECTED] wrote: > > I don't think something is firing.. > > I had it working with the other code.. creating the empty VO and > > assigning the values one by one and then passing the VO to the command > > to populate the MyModel SelectedVO.. > > When I chose a row a form I had started populating using this: > > {MyModel.getInstance().SelectedBudgetVO.amount.toString()} > > > > but when I changed the changeHandler to just > > MyModel.getInstance().SelectedBudgetVO = event.target.selectedItem as BudgetVO; > > > > They stopped populating > > > > > > On Tue, Oct 7, 2008 at 10:17 AM, Tim Hoff [EMAIL PROTECTED] wrote: > >> "I have no idea why it wont work with an ArrayCollection" > >> > >> Because your ArrayCollection is a collection of VO's, not a collection of > >> ArrayCollections; although there may be ArrayCollections as properties of > >> the VO. Can you not just do this? > >> > >> MyModel.getInstance().SelectedBudgetVO = event.target.selectedItem as > >> BudgetVO; > >> > >> -TH > >> > >> --- In [email protected], "Greg Morphis" gmorphis@ wrote: > >>> > >>> I changed it to using a VO and it works.. > >>> > >>> MyModel.getInstance().SelectedBudgetVO = (event as BudgetEvent).budget; > >>> > >>> //Alert.show(MyModel.getInstance().Budget.amount.toString()); > >>> > >>> I have no idea why it wont work with an ArrayCollection, but it works > >>> as a VO.. not sure if this is best practice or not > >>> > >>> On Tue, Oct 7, 2008 at 9:41 AM, Greg Morphis gmorphis@ wrote: > >>> > This is F'ed up... > >>> > > >>> > I changed my code to this... > >>> > > >>> > public function handleChangeEvent(event:Event):void > >>> > { > >>> > var myVO:BudgetVO = new BudgetVO(); > >>> > myVO.actiondate = event.target.selectedItem.actiondate; > >>> > myVO.amount = event.target.selectedItem.amount; > >>> > myVO.id = event.target.selectedItem.id; > >>> > ... > >>> > > >>> > var evt:BudgetEvent = new BudgetEvent(myVO, > >>> > MyControl.EVENT_GET_BUDGET_DETAILS); > >>> > CairngormEventDispatcher.getInstance().dispatchEvent(evt); > >>> > > >>> > } > >>> > > >>> > public class GetBudgetDetailsCommand implements ICommand, IResponder > >>> > { > >>> > > >>> > private var currentSelectedVO:BudgetVO = null; > >>> > > >>> > public function execute(event:CairngormEvent):void { > >>> > > >>> > MyModel.getInstance().SelectedBudgetAC = (event as BudgetEvent).budget > >>> > as ArrayCollection; > >>> > > >>> > /* If I Alert the (event as BudgetEvent).budget.amount.toString() I > >>> > get the amount > >>> > > >>> > But if I Alert > >>> > MyModel.getInstance().SelectedBudgetAC.getItemAt(0).amount.toString() > >>> > I get a null error.. matter of fact if I Alert > >>> > MyModel.getInstance().SelectedBudgetAC.toString() > >>> > I get a null error.. so where the hell is my data going? MyModel.as is > >>> > being imported into the command. > >>> > > >>> > import com.model.MyModel > >>> > > >>> > Again, inside MyModel.as I have the global vars.. > >>> > > >>> > public var SelectedBudgetAC:ArrayCollection; > >>> > > >>> > to check to make sure the MyModel was loading properly I added another > >>> > var to it.. > >>> > > >>> > public var fooVar:Number = 0; > >>> > > >>> > And if I alert that value in the execute() function, it Alerts "0" as > >>> > it should.. > >>> > I'm lost > >>> > */ > >>> > Alert.show(MyModel.getInstance().fooVar.toString()); > >>> > > >>> > } > >>> > .... > >>> > > >>> > > >>> > > >>> > On Tue, Oct 7, 2008 at 8:28 AM, Greg Morphis gmorphis@ wrote: > >>> >> Still null.... > >>> >> > >>> >> The DataGrid looks like > >>> >> <mx:DataGrid id="dg" width="100%" > >>> >> height="100%" dataProvider="{MyModel.getInstance().BudgetAC}" > >>> >> click="clickHandler(event);" > >>> >> change="handleChangeEvent(event as DataGridEvent);"> > >>> >> > >>> >> > >>> >> Data loads fine in the grid.. cool.. The change event fires and > >>> >> > >>> >> public function handleChangeEvent(event:Event):void > >>> >> { > >>> >> MyModel.getInstance().SelectedBudgetAC = event.target.selectedItem > >>> >> as ArrayCollection; > >>> >> Alert.show(event.target.selectedItem.amount.toString()); > >>> >> > >>> >> Alert.show(MyModel.getInstance().SelectedBudgetAC.getItemAt(0).toString(\ )); > >>> >> > >>> >> var evt:CairngormEvent = new > >>> >> CairngormEvent(MyControl.EVENT_GET_BUDGET_DETAILS); > >>> >> CairngormEventDispatcher.getInstance().dispatchEvent(evt); > >>> >> > >>> >> } > >>> >> > >>> >> I just don't get it.. the first Alert works and I see the amount of > >>> >> the selectedItem, but the second gives a null error.. > >>> >> TypeError: Error #1009: Cannot access a property or method of a null > >>> >> object reference. > >>> >> at com.view::budgetBook/handleChangeEvent() > >>> >> at com.view::budgetBook/__dg_change() > >>> >> at flash.events::EventDispatcher/dispatchEventFunction() > >>> >> at flash.events::EventDispatcher/dispatchEvent() > >>> >> at mx.controls.listClasses::ListBase/mouseUpHandler() > >>> >> at mx.controls::DataGrid/mouseUpHandler() > >>> >> > >>> >> > >>> >> > >>> >> > >>> >> On Tue, Oct 7, 2008 at 7:37 AM, jitendra jain > >>> >> jitendra_jain_2007@ wrote: > >>> >>> Use event.target.selectedItems instead of event.target.selectedItem > >>> >>> > >>> >>> Thanks, > >>> >>> > >>> >>> with Regards, > >>> >>> Jitendra Jain > >>> >>> > >>> >>> > >>> >>> ----- Original Message ---- > >>> >>> From: Greg Morphis gmorphis@ > >>> >>> To: [email protected] > >>> >>> Sent: Tuesday, 7 October, 2008 7:22:23 AM > >>> >>> Subject: Re: [flexcoders] handling data within a datagrid > >>> >>> > >>> >>> That was a typo instead of copying and pasting.. > >>> >>> mySelectedRow is an ArrayCollection > >>> >>> I'm assignin the event.target. selectedItem which is a datagrid row to > >>> >>> it.. > >>> >>> I want to knmow why it's not working the way it should... > >>> >>> > >>> >>> To learn I'm creating a budgetbook of sorts.. so here's what I have > >>> >>> copied and pasted.. > >>> >>> > >>> >>> public function handleChangeEvent( event:DataGridEv ent):void > >>> >>> { > >>> >>> MyModel.getInstance ().SelectedBudge tAC = event.target. selectedItem > >>> >>> as > >>> >>> ArrayCollection; > >>> >>> Alert.show(MyModel. getInstance( ).SelectedBudget AC.getItemAt( > >>> >>> 0).payee) ; > >>> >>> var evt:CairngormEvent = new CairngormEvent( MyControl. EVENT_GET_ > >>> >>> BUDGET_DETAILS) ; > >>> >>> CairngormEventDispa tcher.getInstanc e().dispatchEven t(evt); > >>> >>> > >>> >>> } > >>> >>> > >>> >>> public var Budget:BudgetVO; > >>> >>> public var BudgetAC:ArrayColle ction; > >>> >>> public var budgetID:Number; > >>> >>> public var SelectedBudgetAC: ArrayCollection; > >>> >>> > >>> >>> sorry about that.. > >>> >>> > >>> >>> On Mon, Oct 6, 2008 at 9:02 PM, Tracy Spratt [EMAIL PROTECTED] com> > >>> >>> wrote: > >>> >>>> Then how are you expecting that setting "mySelectedRow" property will > >>> >>>> do > >>> >>>> anything regarding the "SelectedBudgetAC" property? > >>> >>>> > >>> >>>> Tracy > >>> >>>> > >>> >>>> > >>> >>>> > >>> >>>> ____________ _________ _________ __ > >>> >>>> > >>> >>>> From: [EMAIL PROTECTED] ups.com [mailto:[EMAIL PROTECTED] > >>> >>>> ups.com] On > >>> >>>> Behalf Of Greg Morphis > >>> >>>> Sent: Monday, October 06, 2008 8:02 PM > >>> >>>> To: [EMAIL PROTECTED] ups.com > >>> >>>> Subject: Re: [flexcoders] handling data within a datagrid > >>> >>>> > >>> >>>> > >>> >>>> > >>> >>>> No, just global variables > >>> >>>> > >>> >>>> On Mon, Oct 6, 2008 at 7:13 PM, Tracy Spratt [EMAIL PROTECTED] com> > >>> >>>> wrote: > >>> >>>>> Does MyModel handle the relationship between mySelectedRow and > >>> >>>>> SelectedBudgetAC? Using setters or getters? > >>> >>>>> > >>> >>>>> Tracy > >>> >>>>> > >>> >>>>> > >>> >>>>> > >>> >>>>> ____________ _________ _________ __ > >>> >>>>> > >>> >>>>> From: [EMAIL PROTECTED] ups.com [mailto:[EMAIL PROTECTED] > >>> >>>>> ups.com] On > >>> >>>>> Behalf Of Greg Morphis > >>> >>>>> Sent: Monday, October 06, 2008 7:48 PM > >>> >>>>> To: [EMAIL PROTECTED] ups.com > >>> >>>>> Subject: [flexcoders] handling data within a datagrid > >>> >>>>> > >>> >>>>> > >>> >>>>> > >>> >>>>> I've got my datagrid populating but I need to see that data in > >>> >>>>> aother > >>> >>>>> location within my app. > >>> >>>>> In my MyModel.as > >>> >>>>> I have a "global" variable > >>> >>>>> public var mySelectedRow: ArrayCollection; > >>> >>>>> > >>> >>>>> I've tried setting this variable in the dataGrid change event... > >>> >>>>> public function handleChangeEvent( event:Event) :void > >>> >>>>> { > >>> >>>>> MyModel.getInstance ().mySelectedRow = event.target. selectedItem as > >>> >>>>> ArrayCollection; > >>> >>>>> Alert.show(MyModel. getInstance( ).SelectedBudget AC.getItemAt( > >>> >>>>> 0).amount) ; > >>> >>>>> var evt:CairngormEvent = new > >>> >>>>> CairngormEvent( MyControl. EVENT_GET_ DATA_DETAILS) ; > >>> >>>>> CairngormEventDispa tcher.getInstanc e().dispatchEven t(evt); > >>> >>>>> > >>> >>>>> } > >>> >>>>> > >>> >>>>> The Alert returns a null error.. but it looks like it should be > >>> >>>>> working? > >>> >>>>> What I'm trying to do is I have a VO I need to populate.. I was > >>> >>>>> going > >>> >>>>> to do that within a command (is that best practice? -- to seperate > >>> >>>>> display from logic) > >>> >>>>> So anywho I'm trying to populate that arraycollection and then in > >>> >>>>> the > >>> >>>>> command do all the fun stuff... > >>> >>>>> var myVO:FootVO = MyModel.getInstance ().FooVO; > >>> >>>>> myVO.amount = MyModel.getInstance ().SelectedBudge tAC.getItemAt( > >>> >>>>> 0).amount; > >>> >>>>> > >>> >>>>> but I'm getting a null error.. is this the proper way to load a VO > >>> >>>>> from a selected DataGrid row? > >>> >>>>> > >>> >>>>> Thanks > >>> >>>>> > >>> >>>>> > >>> >>>> > >>> >>>> > >>> >>> > >>> >>> ________________________________ > >>> >>> Add more friends to your messenger and enjoy! Invite them now. > >>> >> > >>> > > >>> > >> > >> > > >
