<?xml version="1.0" encoding="utf-8"?>

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"

               xmlns:s="library://ns.adobe.com/flex/spark"

               xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">

  <s:layout>

      <s:VerticalLayout/>

  </s:layout>

    <fx:Script>

        <![CDATA[

            private function concatenateName(item:Object):String

            {

             return item.firstName + " "+item.lastName;

            }

        ]]>

    </fx:Script>

    <s:ButtonBar id="buttonBar" labelFunction="concatenateName">

        <mx:ArrayCollection>

            <fx:Object firstName ="马" lastName="楠" email="tahmed@flexinaction.com" phone="18815654512" />

            <fx:Object firstName ="张" lastName="士鑫" email="zhangshixin@xiangm" phone="188156545103" />

            <fx:Object firstName ="马" lastName="楠" email="tahmed@flexinaction.com" phone="18815654512" />

            <fx:Object firstName ="张" lastName="士鑫" email="zhangshixin@xiangm" phone="188156545103" />

            <fx:Object firstName ="马" lastName="楠" email="tahmed@flexinaction.com" phone="18815654512" />

        </mx:ArrayCollection>

    </s:ButtonBar>

</s:Application>

<?xml version="1.0" encoding="utf-8"?>

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"

               xmlns:s="library://ns.adobe.com/flex/spark"

               xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">

  <s:layout>

      <s:VerticalLayout/>

  </s:layout>

    <fx:Script>

        <![CDATA[

            import mx.collections.ArrayCollection;

            import mx.controls.dataGridClasses.DataGridColumn;

            [Bindable]

            public var myAC:ArrayCollection = new ArrayCollection([

                {name:"马楠", username:"manan",dtJoined:"01/02/2008 12:22:11",dtLogin:"02/20/2010 13:33:11"},

                {name:"白小羽", username:"baixiaoyu",dtJoined:"01/02/2008 12:22:11",dtLogin:"02/20/2010 13:33:11"},

                {name:"马a", username:"manan",dtJoined:"01/02/2008 12:22:11",dtLogin:"02/20/2010 13:33:11"},

                {name:"马b", username:"manan",dtJoined:"01/02/2008 12:22:11",dtLogin:"02/20/2010 13:33:11"},

                {name:"马c", username:"manan",dtJoined:"01/02/2008 12:22:11",dtLogin:"02/20/2010 13:33:11"}

            ]);

            public function formatDate(row:Object, col:DataGridColumn):String

            {

              var retVal:String ="";

              if(col.dataField =="dtJoined") retVal = dFmt.format(row.dtJoined);

              else if (col.dataField =="dtLogin")

                   retVal = dFmt.format(row.dtLogin);

              return retVal;

            }

        ]]>

    </fx:Script>

    <fx:Declarations>

        <mx:DateFormatter id="dFmt" formatString="MM/DD/YY"/>

    </fx:Declarations>

      <mx:DataGrid id="dg" width="500" height="100" dataProvider="{myAC}">

          <mx:columns>

              <mx:DataGridColumn dataField="name" headerText="Name"/>

              <mx:DataGridColumn dataField="username" headerText="Username"/>

              <mx:DataGridColumn dataField="dtJoined" headerText="Joined" labelFunction="formatDate"/>

              <mx:DataGridColumn dataField="dtLogin" headerText="Last login" labelFunction="formatDate"/>

          </mx:columns>

      </mx:DataGrid>

</s:Application>