<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Model id="empModel">
<employees>
<row>
<employeeid>1</employeeid>
<firstname>A</firstname>
<lastname>B</lastname>
<department>Marketing</department>
</row>
<row>
<employeeid>2</employeeid>
<firstname>C</firstname>
<lastname>D</lastname>
<department>Shipping</department>
</row>
</employees>
</mx:Model>
<mx:ArrayCollection id="employeeAC" source="{empModel.row}"/>
<mx:AdvancedDataGrid id="employeeGrid" initialize="gc.refresh()">
<mx:dataProvider>
<mx:GroupingCollection2 id="gc" source="{employeeAC}">
<mx:grouping>
<mx:Grouping>
<mx:GroupingField name="department"/>
</mx:Grouping>
</mx:grouping>
</mx:GroupingCollection2>
</mx:dataProvider>
<mx:columns>
<mx:AdvancedDataGridColumn dataField="department" headerText="Department" fontWeight="bold"/>
<mx:AdvancedDataGridColumn dataField="firstname" headerText="First Name"/>
<mx:AdvancedDataGridColumn dataField="lastname" headerText="Last Name"/>
</mx:columns>
</mx:AdvancedDataGrid>
</mx:Application>
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