richfaces 进度条轮询
我的网页上有一个进度条组件定义如下：
<rich:modalPanel id="pb1Panel">
<rich:progressBar id="pb1" oncomplete="javascript:#{myBean.handleProgressEvent()} closeProgressModalPanel()" value="#{pb1Listener.percentageComplete}" label="#{pb1Listener.percentageComplete} %" minValue="1" maxValue="100" limitToList="true" timeout="3200" interval="1400" enabled="false"/>
</rich:modalPanel>
和一个按钮：
<a4j:commandButton id="actButton" value="action" action="#{myBean.performAction}" immediate="true" ajaxSingle="true" onclick="javascript:Richfaces.showModalPanel('pb1Panel');" reRender="pb1Panel">
<a4j:support event="onClick" value="#{rich:component('pb1')}.enable()" reRender="pb1" />
</a4j:commandButton>
不起作用。但是，如果我从进度条中取出
....
enabled="false"/>
....
，并从按钮中取出元素，一切似乎都工作正常。
有什么建议吗？为什么它不起作用？我最初设置启用=“假”，因为我不希望轮询开始，除非单击按钮（以减少不必要的轮询）。
该系统建立在 richfaces/seam 之上。
谢谢！
I've got a progressBar component defined as the following on my webpage:
<rich:modalPanel id="pb1Panel">
<rich:progressBar id="pb1" oncomplete="javascript:#{myBean.handleProgressEvent()} closeProgressModalPanel()" value="#{pb1Listener.percentageComplete}" label="#{pb1Listener.percentageComplete} %" minValue="1" maxValue="100" limitToList="true" timeout="3200" interval="1400" enabled="false"/>
</rich:modalPanel>
and a button:
<a4j:commandButton id="actButton" value="action" action="#{myBean.performAction}" immediate="true" ajaxSingle="true" onclick="javascript:Richfaces.showModalPanel('pb1Panel');" reRender="pb1Panel">
<a4j:support event="onClick" value="#{rich:component('pb1')}.enable()" reRender="pb1" />
</a4j:commandButton>
which doesn't work. However if I take out the
....
enabled="false"/>
....
from the progress bar, and the element from the button, everything seems to work just fine.
Any suggestion why it's not working? I'm setting enabled="false" initially because I do not want the polling to start unless the button was clicked (to reduce unnecessary polling).
The system is building on richfaces/seam.
Thanks!
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enabled属性应该引用托管 bean 的属性，并且您的按钮应该更改它，然后重新渲染进度条。只需从此处复制粘贴示例 - 它正在做与你想要的完全相同的事情。
The
enabledproperty should refer to a property of a managed bean, and your button should change it, then reRender the progress bar.Simply copy-paste the example from here - it's doing exactly the same thing as you want.