Advanced DataGrid SUM

Question

Hi All,
I'm trying to SUM columns and display the total column at the end of each group using:
<mx:GroupingCollection id="groupedData" source="{acData}" >
                            <mx:Grouping>
                                <mx:GroupingField name="SERIES" >
                                    <mx:summaries>
                                        <mx:SummaryRow summaryPlacement="last group">
                                            <mx:fields>
                                                <mx:SummaryField dataField="Field01" operation="SUM" />
                                                <mx:SummaryField dataField="Field03" operation="SUM" />
                                            </mx:fields>
                                        </mx:SummaryRow>
                                    </mx:summaries>
                                </mx:GroupingField>
                            </mx:Grouping>
                        </mx:GroupingCollection>
with summaryPlacement="group"  shows at the top.
with summaryPlacement="last group" It shows the top and the last.
with summaryPlacement="last" Doesn't show anything. How can I fix this? It's a way to change this total ROW color as RED and display the word TOTAL.
Thanks !
Johnny

Answer 1

I got the solution:
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
    <mx:Script>
        <![CDATA[
            import mx.collections.ArrayCollection;
            import mx.controls.advancedDataGridClasses.AdvancedDataGridColumn;
            import mx.collections.IViewCursor;    
            import mx.collections.SummaryObject;
            [Bindable]
            private var dpFlat:ArrayCollection = new ArrayCollection([
                {Territory:"Arizona", Territory_Rep:"Barbara Jennings", Actual:38865, Estimate:40000},
                {Territory:"Arizona", Territory_Rep:"Dana Binn", Actual:29885, Estimate:30000}, 
                {Territory:"Central California", Territory_Rep:"Joe Smith", Actual:29134, Estimate:30000}, 
                {Territory:"Nevada", Territory_Rep:"Bethany Pittman", Actual:52888, Estimate:45000}, 
                {Territory:"Northern California", Territory_Rep:"Lauren Ipsum", Actual:38805, Estimate:40000},
                {Territory:"Northern California", Territory_Rep:"T.R. Smith", Actual:55498, Estimate:40000}, 
                {Territory:"Southern California", Territory_Rep:"Alice Treu", Actual:44985, Estimate:45000},
                {Territory:"Southern California", Territory_Rep:"Jane Grove", Actual:44913, Estimate:45000}
            // Callback function to create
            // the SummaryObject used to hold the summary data.
            private function summObjFunc():SummaryObject {
                // Define the object containing the summary data.
                var obj:SummaryObject = new SummaryObject();
                // Add a field containing a value for the Territory_Rep column.
                obj.Territory_Rep = "Total:";
                return obj;
            // Callback function to summarizes
            // every other row of the Actual sales revenue for the territory.
            private function summFunc(cursor:IViewCursor, dataField:String, operation:String):Number {
                var sumRows:Number = 0;
                while (!cursor.afterLast)
                    if (dataField == "Actual")
                        sumRows += Number(cursor.current["Actual"]);
                    cursor.moveNext();
                return sumRows;
            private function formatSummary(data:Object, col:AdvancedDataGridColumn):Object{
                if ( data["Territory_Rep"] == "Total:") 
                    return { color:0xFF0000, fontWeight:"bold"}
                return {};
        ]]>
    </mx:Script>
    <mx:AdvancedDataGrid id="myADG" editable="true" width="100%" height="100%"
                         initialize="gc.refresh();" styleFunction="formatSummary">       
        <mx:dataProvider>
            <mx:GroupingCollection id="gc" source="{dpFlat}">
                <mx:Grouping>
                    <mx:GroupingField name="Territory">
                        <mx:summaries>
                            <mx:SummaryRow summaryObjectFunction="summObjFunc" summaryPlacement="last">
                                <mx:fields>
                                    <mx:SummaryField dataField="Actual" summaryFunction="summFunc"/>
                                </mx:fields>
                            </mx:SummaryRow>
                        </mx:summaries>
                    </mx:GroupingField>
                </mx:Grouping>
            </mx:GroupingCollection>
        </mx:dataProvider>       
        <mx:columns>
            <mx:AdvancedDataGridColumn dataField="Territory" editable="false"/>
            <mx:AdvancedDataGridColumn dataField="Territory_Rep" headerText="Territory Rep" editable="false"/>
            <mx:AdvancedDataGridColumn dataField="Actual" editable="true"/>
            <mx:AdvancedDataGridColumn dataField="Estimate" editable="true"/>
        </mx:columns>
    </mx:AdvancedDataGrid>
</mx:Application>