综合网上对这个问题的讨论，大致有两种思路。一种是：将DataGrid数据经过封装变为html格式，输出到系统剪切板中，通过调用JavaScript将数据写入Excel中，调用浏览器打开，浏览之后，保存。第二种：是将DataGrid数据转换为为CSV（逗号分隔值文件）文件，用Excel打开。同时搜素到一片文章，http://coenraets.org/blog/2009/11/open-in-excel-another-air-2-mini-sample/，在该文章中，作者实现了一个Demo，提到用Air2.0的新特性可以直接快速在Excel中打开DataGrid中的数据，通过使用
File.openWithDefaultApplication()方法，同时利用as3xls library创建 the Excel spreadshee。我现在仍然使用Air1.5，这种实现就先记下，以后在详细看看。
第一种方法原文：http://www.cflex.net/showfiledetails.cfm?ObjectID=298
直接上代码：ACTION SCRIPT FOR YOUR FLEX APP
function docopy(dg)
{
var font = dg.getStyle('fontFamily');
var size = dg.getStyle('fontSize');
var hcolor ;
if(dg.getStyle("headerColor") != undefined) hcolor = [dg.getStyle("headerColor")];
else hcolor = dg.getStyle("headerColors");
var str:String = '<html><body><table width="'+dg.width+'"><thead><tr width="'+
dg.width+'" style="background-color:#' +Number((hcolor[0])).toString(16)+'">';
for(var i=0;i<dg.__columns.length;i++)
{
var colors = dg.getStyle("themeColor");
var style = 'style="font-family:'+font+';font-size:'+size+'pt;"';
if(dg.__columns[i].headerText != undefined)
{
str+="<th "+style+">"+dg.__columns[i].headerText+"</th>";
}
else
{
str+= "<th "+style+">"+dg.__columns[i].columnName+"</th>";
}
}
str += "</tr></thead><tbody>";
var colors = dg.getStyle("alternatingRowColors");
for(var j=0;j<dg.length;j++)
{
str+="<tr width=\""+Math.ceil(dg.width)+"\" style='background-color:#" +Number((colors[j%colors.length])).toString(16)+"'>";
var style = 'style="font-family:'+font+';font-size:'+size+'pt;"';
for(var i=0;i<dg.__columns.length;i++)
{
if(dg.getItemAt(j) != undefined && dg.getItemAt(j) != null)
if(dg.__columns[i].labelFunction != undefined)
str += "<td width=\""+Math.ceil(dg.__columns[i].width)+"\" "+style+">"+
dg.__columns[i].labelFunction(dg.getItemAt(j),dg.__columns[i].columnName)+"</td>";
else
str += "<td width=\""+Math.ceil(dg.__columns[i].width)+"\" "+style+">"+
dg.getItemAt(j)[dg.__columns[i].columnName]+"</td>";
}
str += "</tr>";
}
str+="</tbody></table></body></html>";
System.setClipboard(str);
}
function handleOnKeyUp()
{
if(Key.isDown(Key.CONTROL) &&Key.getCode() ==67)
{
mx.managers.CursorManager.setBusyCursor();
docopy(grid);
// exchange 'grid' with the id of your datagrid you want copied
mx.managers.CursorManager.removeBusyCursor();
}
}
// only register interest if you want ctrl-c to process a copy of a datagrid.
// it's also ctrl + c (on key up,not down)
var obj:Object;
function registerKeyInterest()
{
if(obj == undefined)
{
obj = new Object();
obj.onKeyUp = mx.utils.Delegate.create(this,handleOnKeyUp);
}
Key.addListener(obj);
}
function removeKeyInterest()
{
Key.removeListener(obj);
}
function copyAndOpen(grid)
{
docopy(grid);
getUrl("javascript:openExcel();");
}
// JAVASCRIPT for your HTML PAGE
<SCRIPT Language="JavaScript1.2">
var excel = null;
function openExcel()
{
try
{
if(excel == null)
{
excel = new ActiveXObject("Excel.Application");
}
var workbook = excel.Workbooks.Add();
workbook.Activate();
var worksheet = workbook.Worksheets("Sheet1");
worksheet.Activate();
worksheet.Paste();
excel.visible=true;
}catch(exception)
{
window.alert("Now you may Paste into an Excel SpreadSheet");
}
}
</SCRIPT>
第二种方法原文：http://www.abdulqabiz.com/blog/archives/2007/08/03/datagriddataexporter-export-datagrid-data-as-csv/
DataGridDataExport.as
package com.abdulqabiz.utils
{
import mx.controls.DataGrid;
import mx.controls.dataGridClasses.DataGridColumn;
import mx.collections.ArrayCollection;
import mx.collections.XMLListCollection;
import mx.collections.IList;
import mx.collections.IViewCursor;
import mx.collections.CursorBookmark;
public class DataGridDataExporter
{
public static function exportCSV(dg:DataGrid, csvSeparator:String="\t", lineseparator:String="\n"):String
{
var data:String = "";
var columns:Array = dg.columns;
var columnCount:int = columns.length;
var column:DataGridColumn;
var header:String = "";
var headerGenerated:Boolean = false;
var dataProvider:Object = dg.dataProvider;
var rowCount:int = dataProvider.length;
var dp:Object = null;
var cursor:IViewCursor = dataProvider.createCursor ();
var j:int = 0;
//loop through rows
while (!cursor.afterLast)
{
var obj:Object = null;
obj = cursor.current;
//loop through all columns for the row
for(var k:int = 0; k < columnCount; k++)
{
column = columns[k];
//Exclude column data which is invisible (hidden)
if(!column.visible)
{
continue;
}
data += "\""+ column.itemToLabel(obj)+ "\"";
if(k < (columnCount -1))
{
data += csvSeparator;
}
//generate header of CSV,only if it's not genereted yet
if (!headerGenerated)
{
header += "\"" + column.headerText + "\"";
if (k < columnCount - 1)
{
header += csvSeparator;
}
}
}
headerGenerated = true;
if (j < (rowCount - 1))
{
data += lineseparator;
}
j++;
cursor.moveNext ();
}
//set references to null:
dataProvider = null;
columns = null;
column = null;
return (header + "\r\n" + data);
}
}
}
DataGridCsvexportExample.mxml
<?xml version="1.0"?> <!-- DataGrid control example. --> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"> <mx:Script> <![CDATA[ import com.abdulqabiz.utils.DataGridDataExporter; private function exportCSV ():void { console.text = DataGridDataExporter.exportCSV (dg); } ]]> </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>Joanne Wall</name> <phone>555-219-2012</phone> <email>jwall@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> <employee> <name>Mary Jones</name> <phone>555-219-2000</phone> <email>mjones@fictitIoUs.com</email> <active>true</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="dg" width="100%" height="100%" rowCount="5" dataProvider="{employees}"> <mx:columns> <mx:DataGridColumn datafield="name" headerText="Name"/> <mx:DataGridColumn datafield="phone" headerText="Phone"/> <mx:DataGridColumn datafield="email" headerText="Email"/> </mx:columns> </mx:DataGrid> <mx:Button label="Export CSV" click="exportCSV ()"/> <mx:TextArea id="console" width="100%" height="100%" /> </mx:Panel> </mx:Application>
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