动态改变datagrid column显示顺序

public function set ColumnOrder(arr:Array) { var aColumnsNew:Array = columns; for each(var columnname:Object in arr) { var column:DataGridColumn=new DataGridColumn; column.dataField=columnname.dataField; column.headerText=columnname.headerText; aColumnsNew.push(column); } columns=aColumnsNew; //必须要这么写，否则不能够出来效果； 相关资源：敏捷开发V1.0.pptx