在自定义的widget中引入图表后，运行时出现TypeError #1009错误

本人网上查找了很多资料，其中大部分都是关于Flash中的动画效果问题，与这里的问题关系型不太大。故把问题的解决方法写在这里，与人方便，与己方便。

方法一:

1.在自定义的widget中添加如下两个方法:

private function copyStyleFromParent(selector:String):void

{

var chartBaseStyle:CSSStyleDeclaration = styleManager.getStyleDeclaration(selector);

if (!chartBaseStyle && styleManager.parent)

{

var parentStyle:CSSStyleDeclaration = styleManager.parent.getStyleDeclaration(selector);

if (parentStyle)

{

styleManager.setStyleDeclaration(selector, parentStyle, false);

}

}

}

protected function preinitializeHandler ():void

{

var styleObjects:Array =new Array();//FlexGlobals.topLevelApplication.styleManager.selectors;

styleObjects.push( "mx.charts.chartClasses.ChartBase" );

styleObjects.push( "mx.charts.chartClasses.CartesianChart" );

styleObjects.push( "mx.charts.chartClasses.PolarChart" );

styleObjects.push( "mx.charts.BarChart");

styleObjects.push( "mx.charts.ColumnChart" );

styleObjects.push( "mx.charts.LineChart");

styleObjects.push( "mx.charts.PieChart");

styleObjects.push( "mx.charts.AxisRenderer" );

styleObjects.push( ".blockCategoryAxis");

styleObjects.push( ".blockNumericAxis");

styleObjects.push( ".linedNumericAxis");

styleObjects.push( ".dashedNumericAxis");

styleObjects.push( ".dashedCategoryAxis");

styleObjects.push( ".hangingCategoryAxis");

styleObjects.push( "mx.charts.GridLines");

styleObjects.push( ".horizontalGridLines");

styleObjects.push( "mx.charts.series.BarSeries" );

styleObjects.push( "mx.charts.series.ColumnSeries" );

styleObjects.push( "mx.charts.series.LineSeries" );

styleObjects.push( "mx.charts.series.PieSeries" );

for each(var styleObj:String in styleObjects) {

                             

copyStyleFromParent(styleObj);

}

}

　　2.在该自定义widget头部中添加preinitialize="preinitializeHandler ()" 。

方法二:

在自定义widget中覆盖父类的moduleFactory方法:

　　override public function get moduleFactory():IFlexModuleFactory {

　　　　return FlexGlobals.topLevelApplication.moduleFactory;

　　}