private function printHandler():void{            var printJob:FlexPrintJob = new FlexPrintJob();            printJob.printAsBitmap = true;            if (printJob.start()){                    var myPrintData:PrintDataGrid=new PrintDataGrid();                    var dataCol:DataGridColumn = new DataGridColumn();                    dataCol.headerText = "序号";                    dataCol.dataField= "NUM";                    dataCol.width = 60;                    var dataCol0:DataGridColumn = new DataGridColumn();                    dataCol0.headerText = "拐点号";                    dataCol0.dataField= "GDH";                    dataCol0.width = 60;                    var dataCol1:DataGridColumn = new DataGridColumn();                    dataCol1.headerText = "X_坐标(起标高)";                    dataCol1.dataField= "XZB";                    dataCol1.width = 125;                    var dataCol2:DataGridColumn = new DataGridColumn();                    dataCol2.headerText = "Y_坐标(止标高)";                    dataCol2.dataField= "YZB";                    dataCol2.width = 125;                    var dataCol3:DataGridColumn = new DataGridColumn();                    dataCol3.headerText = "矿体标识";                    dataCol3.dataField= "KTBS";                    dataCol3.width = 220;                    var dataCol4:DataGridColumn = new DataGridColumn();                    dataCol4.headerText = "性质";                    dataCol4.dataField= "XZ";                    dataCol4.width = 60;                    myPrintData.columns = myPrintData.columns.concat(dataCol)                    myPrintData.columns = myPrintData.columns.concat(dataCol0)                    myPrintData.columns = myPrintData.columns.concat(dataCol1);                    myPrintData.columns = myPrintData.columns.concat(dataCol2);                    myPrintData.columns = myPrintData.columns.concat(dataCol3);                    myPrintData.columns = myPrintData.columns.concat(dataCol4);                    Application.application.addChild(myPrintData);                    myPrintData.dataProvider = dgCoord.dataProvider;                    myPrintData.width=printJob.pageWidth;                    myPrintData.height=printJob.pageHeight;                    myPrintData.sizeToPage = true;                    printJob.addObject(myPrintData);                    while(myPrintData.validNextPage){                        myPrintData.nextPage();                        printJob.addObject(myPrintData);                    }                    Application.application.removeChild(myPrintData);                    printJob.send();               }        }

<mx:DataGrid id="dgCoord" right="0" bottom="30" top="30"  left="0" editable="true" width="100%" 			visible="true" draggableColumns="false" sortableColumns="false" fontFamily="微软雅黑" fontWeight="normal" 			allowMultipleSelection="true" color="#0b333c" borderThickness="0"			fontStyle="normal" textDecoration="normal" fontSize="12">		<mx:columns>				<mx:DataGridColumn headerText="序号" dataField="NUM" width="10" editable="false" textAlign="center"/>					<mx:DataGridColumn headerText="拐点号" dataField="GDH" width="10" textAlign="center"/>							<mx:DataGridColumn headerText="X_坐标(起标高)" dataField="XZB" width="23" textAlign="center"/>				<mx:DataGridColumn headerText="Y_坐标(止标高)" dataField="YZB" width="23" textAlign="center"/>				<mx:DataGridColumn headerText="矿体标识" dataField="KTBS" width="18" textAlign="center"/>				<mx:DataGridColumn headerText="性质" dataField="XZ" width="10" textAlign="center"/>						</mx:columns>	</mx:DataGrid>