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>