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DataGrid 常用事件  

2009-12-22 18:04:03|  分类: flex |  标签: |举报 |字号 订阅

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<?xml version="1.0"?>

<!-- DataGrid control example. -->

<mx:Application xmlns:mx=" http://www.adobe.com/2006/mxml " >

 

    <mx:Script>

       <![CDATA[

           import mx.controls.dataGridClasses.DataGridListData;

           import mx.controls.dataGridClasses.DataGridItemRenderer;

           import mx.controls.dataGridClasses.DataGridColumn;

           import mx.controls.dataGridClasses.DataGridHeader;

           import mx.events.DataGridEvent;

           import mx.events.ListEvent;

          

           /**DataGridDemo by kelvin

             * date:2008-05-30

             * MSN:xiaobolove@hotmail.com

             * */

          

           private function dg_click(event:MouseEvent): void

           {

              trace ( "---------------click ( MouseEvent ) ---------------" );

              traceClass(event);

              if (event.target is DataGridItemRenderer)

                  trace ( "click: " +event.target.text); // 须判断

              trace ( "---------------click ( MouseEvent ) ---------------" + "\n" );

           }

          

           private function dg_change(event:ListEvent): void

           {

              trace ( "---------------change(ListEvent)---------------" );

              traceClass(event);

              trace ( "columnIndex :" +event.columnIndex);

              trace ( "rowIndex :" +event.rowIndex);

              trace ( "data :\n" +event.itemRenderer.data.toString());

              trace ( "---------------change(ListEvent)---------------" + "\n" );

           }

          

           private function dg_doubleClick(event:MouseEvent): void

           {

              trace ( "---------------doubleclick ( MouseEvent ) ---------------" );

              traceClass(event);

              trace ( "---------------doubleclick ( MouseEvent ) ---------------" + "\n" );

           }

          

           private function dg_itemClick(event:ListEvent): void

           {

              trace ( "---------------itemClick(ListEvent)---------------" );

              traceClass(event);

              trace ( "Current Cell's Text: " +event.target.dataProvider[event.rowIndex][event.target.columns[event.columnIndex].dataField]); //bug

              trace ( "---------------itemClick(ListEvent)---------------" + "\n" );

           }

          

           private function dg_itemDoubleClick(event:ListEvent): void

           {

              trace ( "---------------itemDoubleClick(ListEvent)---------------" );

              traceClass(event);

              trace ( "Current Cell's Text: " +event.target.dataProvider[event.rowIndex][event.target.columns[event.columnIndex].dataField]); //bug

              trace ( "---------------itemDoubleClick(ListEvent)---------------" + "\n" );

           }

          

           private function dg_headerRelease(event:DataGridEvent): void

           {

              trace ( "---------------headerRelease(DataGridEvent)---------------" );

              traceClass(event);

              trace ( "columnIndex :" +event.columnIndex);

              trace ( "rowIndex :" +event.rowIndex);

              trace ( "dataField :" +event.dataField);

              trace ( "headerText :" +event.itemRenderer.data.headerText);

               trace ( "headerText :" +DataGrid(event.target).columns[event.columnIndex].headerText);

              trace ( "color :" +event.target.getStyle( "color" ));

              trace ( "---------------headerRelease(DataGridEvent)---------------" + "\n" );

           }

          

           private function traceClass(event:Event): void

           {

              trace ( "event.target is DataGrid:" +(event.target is DataGrid));

              trace ( "event.target is DataGridColumn:" +(event.target is DataGridColumn));

              trace ( "event.target is DataGridHeader:" +(event.target.parent is DataGridHeader));

              trace ( "event.target is DataGridItemRenderer:" +(event.target is DataGridItemRenderer));

           }

       ]]>

    </mx:Script>

 

    <mx:XMLList id=" employees " >

        <employee>

            <name> Christina Coenraets </name>

            <phone> 555-219-2270 </phone>

            <email> ccoenraets@fictitious.com </email>

            <active> true </active>

        </employee>

           <employee>

            <name> Maurice Smith </name>

            <phone> 555-219-2012 </phone>

            <email> maurice@fictitious.com </email>

            <active> false </active>

        </employee>

          </mx:XMLList>

 

    <mx:Panel title=" DataGrid Control Example " height=" 100% " width=" 100% "

        paddingTop=" 10 " paddingLeft=" 10 " paddingRight=" 10 " >

 

        <mx:Label width=" 100% " color=" blue "

            text=" Select a row in the DataGrid control " />

 

        <mx:DataGrid id=" dgs " width=" 100% " height=" 100% " rowCount=" 5 " dataProvider=" { employees } "

        dragEnabled=" true " dragMoveEnabled=" true " dropEnabled=" true " draggableColumns=" false "

      

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