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An AdvancedDataGrid that displays two summary fields, Min Actual and Max Actual

<!-- Code from Flex 4 Documentation "Using Adobe Flex 4". This user guide is licensed for use under the terms of the Creative Commons Attribution  Non-Commercial 3.0 License.  This License allows users to copy, distribute, and transmit the user guide for noncommercial  purposes only so long as    (1) proper attribution to Adobe is given as the owner of the user guide; and    (2) any reuse or distribution of the user guide contains a notice that use of the user guide is governed by these terms.  The best way to provide notice is to include the following link.  To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/ -->     <!-- dpcontrols/adg/SummaryGroupADG.mxml --> <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"     xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:s="library://ns.adobe.com/flex/spark">     <fx:Script>                    import mx.collections.ArrayCollection;          [Bindable]          private var dpFlat:ArrayCollection = new ArrayCollection([              {Region:"Southwest", Territory:"Arizona",Territory_Rep:"Barbara Jennings", Actual:38865, Estimate:40000},              {Region:"Southwest", Territory:"Arizona",Territory_Rep:"Dana Binn", Actual:29885, Estimate:30000},              {Region:"Southwest", Territory:"Central California",Territory_Rep:"Joe Smith", Actual:29134, Estimate:30000},              {Region:"Southwest", Territory:"Nevada", Territory_Rep:"Bethany Pittman", Actual:52888, Estimate:45000},              {Region:"Southwest", Territory:"Northern California",Territory_Rep:"Lauren Ipsum", Actual:38805, Estimate:40000},              {Region:"Southwest", Territory:"Northern California",Territory_Rep:"T.R. Smith", Actual:55498, Estimate:40000},              {Region:"Southwest", Territory:"Southern California",Territory_Rep:"Alice Treu", Actual:44985, Estimate:45000},              {Region:"Southwest", Territory:"Southern California",Territory_Rep:"Jane Grove", Actual:44913, Estimate:45000}              ]);            </fx:Script>     <mx:AdvancedDataGrid id="myADG" width="100%"         height="100%" initialize="gc.refresh();">         <mx:dataProvider>             <mx:GroupingCollection2 id="gc" source="{dpFlat}">                 <mx:Grouping label="Region">                     <mx:GroupingField name="Region">                         <mx:summaries>                             <mx:SummaryRow summaryPlacement="group">                                 <mx:fields>                                     <mx:SummaryField2 dataField="Actual" label="Min Actual"                                         summaryOperation="MIN" />                                     <mx:SummaryField2 dataField="Actual" label="Max Actual"                                         summaryOperation="MAX" />                                 </mx:fields>                             </mx:SummaryRow>                         </mx:summaries>                     </mx:GroupingField>                     <mx:GroupingField name="Territory">                         <mx:summaries>                             <mx:SummaryRow summaryPlacement="group">                                 <mx:fields>                                     <mx:SummaryField2 dataField="Actual" label="Min Actual"                                         summaryOperation="MIN" />                                     <mx:SummaryField2 dataField="Actual" label="Max Actual"                                         summaryOperation="MAX" />                                 </mx:fields>                             </mx:SummaryRow>                         </mx:summaries>                     </mx:GroupingField>                 </mx:Grouping>             </mx:GroupingCollection2>         </mx:dataProvider>         <mx:columns>             <mx:AdvancedDataGridColumn dataField="Region" />             <mx:AdvancedDataGridColumn dataField="Territory_Rep"                 headerText="Territory Rep" />             <mx:AdvancedDataGridColumn dataField="Actual" />             <mx:AdvancedDataGridColumn dataField="Estimate" />             <mx:AdvancedDataGridColumn dataField="Min Actual" />             <mx:AdvancedDataGridColumn dataField="Max Actual" />         </mx:columns>     </mx:AdvancedDataGrid> </s:Application>