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如何在itemrenderer中验证文本输入?
原标题:how to validate textinput within itemrenderer?

我在列表项呈现器中有文本输入,如

main.mxml

        <s:List
        id="videoAttachmentsList"  
        itemRenderer.normalView="com.engage.discussion.attachment.renderers.VideoAttachmentRenderer"
        >
 <mx:button  label="add"  click=addevent(Event) />

VideoAttachmentRenderer.as视频附件渲染器

 <TextInput  styleName="commonTextInput" 
                  prompt="Enter a video header"
                  id="headerText"
                  x="75" width="185" height="21"
                  bottom="5"
                  fontSize="10"
                  maxChars="30"/>
<fx:Declarations>
        <mx:StringValidator source="{headerText}" property="text" required="true" maxLength="30" requiredFieldError="Please enter video header"/>
    </fx:Declarations>

我的疑虑是,当我在(main.mxml)上单击添加按钮时,时间需要验证headerText(Textinput)(VideoAttachmentRenderer.as)。是否可以在itemRenderer中验证字符串。你能给我什么指导吗?

问题回答

重写set数据方法并在其中触发验证





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