转发器中的Flex Datagrid – 数据绑定警告

虽然这很好用,但因为datagrid的数据提供者来自转发器dataprovider中的数组,所以它会引发以下警告：

数据绑定将无法检测到“报告”的分配

警告是针对此行的：

<mx:DataGrid id="dgReport" dataProvider="{rptReport.currentItem.report}" rowCount="{rptReport.currentItem.report.length}">

以下是我的代码,如果有人对我如何摆脱警告有任何建议/做到这一点,他们将是最受欢迎的！

<mx:Script>
    <![CDATA[
        [Bindable] private var reportProvider;

        private function report_Handler(event:ResultEvent):void {
            // Temp variables
            var currentHeader:String = "";
            var previousHeader:String = "";

            // Retrieve PHP array
            var reportPHP:Array = ArrayUtil.toArray(event.result);

            // Create Flex array
            var reportFlex:Array = [];
            var reportFlex_dataGrid:Array = [];

            // Loop through PHP array
            for(var i:int = 0; i < reportPHP.length; i++) {
                // Retrieve current header
                currentHeader = reportPHP[i].header;

                // Clear array
                if (currentHeader != previousHeader) {
                    reportFlex_dataGrid = [];
                }

                reportFlex_dataGrid.push({column1:reportPHP[i].column1,column2:reportPHP[i].column2,column3:reportPHP[i].column3});                               
            }

            // Add to repeater array
            if (currentHeader != previousHeader) {                          
                // Add to array
                reportFlex.push({header:reportPHP[i].header,report:reportFlex_dataGrid});
            }

            // Store previous headers
            previousHeader = reportPHP[i].header;

            // Add to combobox data provider
            reportProvider = new ArrayCollection(reportFlex);
        }                       
    ]]>
</mx:Script>

<mx:Repeater id="rptReport" dataProvider="{reportProvider}">
    <mx:VBox>
        <mx:Spacer height="5"/>

        <mx:Label id="lblHeader" text="{rptReport.currentItem.header}"/>

        <mx:DataGrid id="dgReport" dataProvider="{rptReport.currentItem.report}" rowCount="{rptReport.currentItem.report.length}">
            <mx:columns>
                <mx:DataGridColumn headerText="Column1" dataField="column1"/>
                <mx:DataGridColumn headerText="Column2" dataField="column2"/>
                <mx:DataGridColumn headerText="Column3" dataField="column3"/>
            </mx:columns>
        </mx:DataGrid>
    </mx:VBox>  
</mx:Repeater>