求教高手,NumericStepper 作为itemrenderer 内存上溢

危险的大猫 2011-11-12 10:10:43

代码如下,麻烦高手给试运行一下:

<?xml version="1.0" encoding="utf-8"?>

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 

                           xmlns:s="library://ns.adobe.com/flex/spark" 

                           xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">

        <s:layout>

                <s:BasicLayout/>

        </s:layout>

        <fx:Script>

                <![CDATA[

                        import mx.collections.ArrayCollection;

                        [Bindable]

                        public var dgArray:ArrayCollection = new ArrayCollection([

                                {foodName:"AA",tableNum:"男性",deliveredNum:"30",daizuo:10},

                                {foodName:"AA",tableNum:"男性",deliveredNum:"30",daizuo:2},

                                {foodName:"AA",tableNum:"男性",deliveredNum:"30",daizuo:4},

                                {foodName:"AA",tableNum:"男性",deliveredNum:"30",daizuo:4},

                                {foodName:"AA",tableNum:"男性",deliveredNum:"30",daizuo:4},

                                {foodName:"AA",tableNum:"男性",deliveredNum:"30",daizuo:4}

                        ]);

                ]]>

        </fx:Script>

        <fx:Declarations>

                <!-- 将非可视元素（例如服务、值对象）放在此处 -->

        </fx:Declarations>

        <mx:AdvancedDataGrid dataProvider="{dgArray}" width="400" height="400">

                <mx:columns>

                        <mx:AdvancedDataGridColumn headerText="ceshi" dataField="daizuo">

                                <mx:itemRenderer>

                                        <fx:Component>

                                                <mx:NumericStepper value="{data.daizuo}"  minimum="1" maximum="{data.daizuo}" stepSize="1" >

                                                </mx:NumericStepper>

                                        </fx:Component>

                                </mx:itemRenderer>

                        </mx:AdvancedDataGridColumn>

                </mx:columns>

        </mx:AdvancedDataGrid>

</s:Application>

我的需求是,从数据源中取出daizuo 属性,作为最大值和当前值. 可是有问题,麻烦大哥们帮忙一下,先谢过了,小弟学flex不久,折腾一晚上了

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shenqiuluo 2012-07-11

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好哦！非常好

危险的大猫 2011-11-20

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谢啦.

SWQQ- 2011-11-16

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这个很简单，自己多实践下就可以了。



<?xml version="1.0" encoding="utf-8"?>

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 

			   xmlns:s="library://ns.adobe.com/flex/spark" 

			   xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">

	<fx:Declarations>

		<!-- 将非可视元素（例如服务、值对象）放在此处 -->

	</fx:Declarations>

	

	<fx:Script>

		<![CDATA[

			import mx.collections.ArrayCollection;

			[Bindable]

			public var dgArray:ArrayCollection = new ArrayCollection([

				{foodName:"AA",tableNum:"男性",deliveredNum:"30",daizuo:10},

				{foodName:"AA",tableNum:"男性",deliveredNum:"30",daizuo:2},

				{foodName:"AA",tableNum:"男性",deliveredNum:"30",daizuo:4},

				{foodName:"AA",tableNum:"男性",deliveredNum:"30",daizuo:4},

				{foodName:"AA",tableNum:"男性",deliveredNum:"30",daizuo:4},

				{foodName:"AA",tableNum:"男性",deliveredNum:"30",daizuo:4}

			]);

		]]>

	</fx:Script>

	

	<mx:AdvancedDataGrid dataProvider="{dgArray}" width="400" height="400">

		<mx:columns>

			<mx:AdvancedDataGridColumn headerText="ceshi" dataField="daizuo" itemRenderer="NumberCustom">

				

			</mx:AdvancedDataGridColumn>

		</mx:columns>

	</mx:AdvancedDataGrid>

</s:Application>



<?xml version="1.0" encoding="utf-8"?>

<s:MXAdvancedDataGridItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009" 

								  xmlns:s="library://ns.adobe.com/flex/spark" 

								  xmlns:mx="library://ns.adobe.com/flex/mx" 

								  focusEnabled="true">

	

	<s:NumericStepper value="{Number(listData.label)}" minimum="1" maximum="{Number(listData.label)}" stepSize="1"/>

</s:MXAdvancedDataGridItemRenderer>

SWQQ- 2011-11-14

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这个的话只能你自己先遍历数据源找到最大的值，然后绑定上去！
maximum="{data.daizuo}" 你这边这样使用肯定是不对的！

危险的大猫 2011-11-14

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居然没人回答呀

危险的大猫 2011-11-14

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[Quote=引用 2 楼 shiwenqing 的回复:]
这个的话只能你自己先遍历数据源找到最大的值，然后绑定上去！
maximum="{data.daizuo}" 你这边这样使用肯定是不对的！
[/Quote]

您好,itemrenderer不是会获得一条记录吗? 比如
{foodName:"AA",tableNum:"男性",deliveredNum:"30",daizuo:4}
然后我要的就是daizuo这个值,4. 怎么弄呢

危险的大猫 2011-11-14