Thanks for asking. Yes, I do use the refresh() function. here is part of my 
code.

    [Bindable]
   private var allBuildLog:ArrayCollection = new ArrayCollection();
   
      public function updateMachine(eP:Event):void {
       allBuildLog.filterFunction = filterM;
       allBuildLog.refresh();
      }
      public function filterM(item:Object):Boolean{
       var result:Boolean=false;
       if (item.machine == machine.selectedItem.toString()) {
              result = true;
      }
        return result;
       }

        <mx:BarChart id="myChart" 
            dataProvider="{allBuildLog}" height="100%" width="100%"
            paddingRight="5" paddingLeft="5"
            showDataTips="true"
            type="overlaid"
        >
         <mx:verticalAxis >
             <mx:CategoryAxis displayName="Machine" title="Machine" 
categoryField="machine"/>
            </mx:verticalAxis>
            <mx:horizontalAxis >
              <mx:DateTimeAxis displayName="Date" title="Date" 
dataUnits="seconds" labelUnits="hours"
                     displayLocalTime="true" parseFunction="createDate" />
            </mx:horizontalAxis>  
        </mx:BarChart> 

   <mx:VBox height="54" horizontalAlign="center">
    <mx:Label text="Machine" fontWeight="bold"/>
    <mx:ComboBox id="machine" width="109" dataProvider="{allMachine}" 
change="updateMachine(event)"></mx:ComboBox>
   </mx:VBox>

hq.

----- Original Message ----
From: bobignacio <[EMAIL PROTECTED]>
To: [email protected]
Sent: Monday, May 14, 2007 2:38:01 PM
Subject: [flexcoders] Re: Barchart display issue with ArrayCollection and 
filterfunction

Have you tried to "refresh()" the ArrayCollection after you used the
filterFunction?

myArrayCollection. refresh() ;

And how about posting your source code...

--- In [EMAIL PROTECTED] ups.com, "haiqing7" <[EMAIL PROTECTED] .> wrote:
>
> 
> In my barchart project, when I use filterfunction to filter my Chart's
> dataprovidor- -An ArrayCollection through ComboBox, if there is only one
> object left in that AC, the first element of the object won't be shown
> in my chart. when I try to debug it, I do see the correct filter result.
> even more, if there are more than one objects left in AC, all data
> display correctly. could anyone help out?
> 
> thanks,
> hq.
>


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