[flexcoders] Re: filter arraycollection with checkbox acting wired

[johndoematrix]

hi tried all that but no head way. in my data base i have a pizza
column which is either yes or no(yes/no) now i have some entries as
yes and some as no so that when someone checks the checkbox it shows
those items that are yes in the database. i am following this example,
the difference is that for this the value is not Boolean as in yes or
no. any help... 

<?xml version="1.0" encoding="utf-8"?>
<!--
http://blog.flexexamples.com/2008/03/12/using-a-combobox-to-filter-items-in-a-datagrid-in-flex/
-->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            import mx.controls.dataGridClasses.DataGridColumn;

            private function toggleFilter():void {
                if (checkBox.selected) {
                    arrColl.filterFunction = processFilter;
                } else {
                    arrColl.filterFunction = null;
                }
                arrColl.refresh();
            }

            private function processFilter(item:Object):Boolean {
                return parseFloat(item.value) == 0;
            }

            private function value_labelFunc(item:Object,
col:DataGridColumn):String {
                return item[col.dataField].toFixed(2);
            }
        ]]>
    </mx:Script>

    <mx:ArrayCollection id="arrColl">
        <mx:source>
            <mx:Array>
                <mx:Object name="ColdFusion" value="0.00" />
                <mx:Object name="Dreamweaver" value="0.12" />
                <mx:Object name="Fireworks" value="1.01" />
                <mx:Object name="Flash" value="0" />
                <mx:Object name="Flash Player" value="-0.00" />
                <mx:Object name="Flex" value="0.00" />
                <mx:Object name="Illustrator" value="2.92" />
                <mx:Object name="Lightroom" value="0.32" />
                <mx:Object name="Photoshop" value="0.06" />
            </mx:Array>
        </mx:source>
    </mx:ArrayCollection>

    <mx:Panel status="{arrColl.length}/{arrColl.source.length} item(s)">
        <mx:DataGrid id="dataGrid"
                dataProvider="{arrColl}"
                verticalScrollPolicy="on">
            <mx:columns>
                <mx:DataGridColumn dataField="name" />
                <mx:DataGridColumn dataField="value"
                        labelFunction="value_labelFunc" />
            </mx:columns>
        </mx:DataGrid>
        <mx:ControlBar>
            <mx:CheckBox id="checkBox"
                    label="Filter DataGrid"
                    click="toggleFilter();" />
        </mx:ControlBar>
    </mx:Panel>

</mx:Application>