按照文档操作，进行JS数据导出时，报错customJS Error:cannot read properties of undefined(reading 'getWidgetByname')，具体JS：var widgetNames = ; //定义数组存放控件名称function getWidgetValueByName(name) { var widget = _g().parameterEl.getWidgetByName(name); //根据控件名获取控件值 if (widget == undefined) return; var obj = {}; obj = widget.getValue(); return obj; //返回控件值组成的数组}var paramJson = widgetNames.map(getWidgetValueByName).reduce(function(a, b) { return Object.assign(a, b)});var paramJsonStr = JSON.stringify(paramJson); //将json数据转换为字符串var col = _g().getParameterContainer().getWidgetByName("col").getValue();//alert(col);//参数进行url编码var colNames = encodeURIComponent(col)//var colNames = encodeURIComponent() //指定导出的数据列，导出字段按此顺序排列，为空默认导出所有//调用导出接口//console.log(paramJsonStr);//console.log(colNames);_g().directExportToExcel("ds1", "明细数据", encodeURIComponent(paramJsonStr), colNames," "," ");
