如何在selectOneMenu选择上刷新JSF中的页面? [英] How to refresh page in JSF on selectOneMenu selection?

问题描述

我有一个页面，其中包含一个 PrimeFaces (2.2.1) 编辑器组件、一个刷新按钮和一个 selectOneMenu，其选择会影响编辑器的内容，如下所示:

I have a page containing a PrimeFaces (2.2.1) Editor component, a Refresh button and a selectOneMenu, whose selection affects the contents of the Editor, as follows:

<p:editor id="uploadedText" value="#{facilityDataUploadBean.uploadedText}"
          width="600" height="180" disabled="true" controls="" />
<h:commandButton value="Refresh" immediate="true" />
<h:selectOneMenu id="skipLines" styleClass="dropdown"
                 value="#{facilityDataUploadBean.skipLines}">
    <f:selectItems value="#{facilityDataUploadBean.skipLinesList}" />
    <f:ajax listener="#{facilityDataUploadBean.importParameterChanged}" />
</h:selectOneMenu>

facilityDataUploadBean.importParameterChanged 更新 facilityDataUploadBean.uploadedText.更改selectOneMenu 值后，操作员按下Refresh 按钮刷新页面，包括p:editor 的内容.(我不能简单地使用 AJAX 刷新 p:editor，因为它不能正确重新渲染，至少在 PF 2.2.1 中是这样.)

facilityDataUploadBean.importParameterChanged updates facilityDataUploadBean.uploadedText. After changing the selectOneMenu value, the operator presses the Refresh button to refresh the page, including the contents of the p:editor. (I cannot simply refresh the p:editor using AJAX, because it doesn't re-render correctly, at least in PF 2.2.1.)

似乎我应该能够在 selectOneMenu 值更改时自动完成页面刷新，但是我一直无法想出可以执行此操作的属性和事件的组合那.我在 selectOneMenu 上尝试了 onchange="submit();"、immediate="true" 和 valueChangeListener 的各种组合，以及f:ajaxexecute="@all/@form"、render="@all/@form"/code> 事件，都无济于事.我目前的解决方法是显示一条消息，要求用户在更改 selectOneMenu 选择时按下刷新按钮 - 非常糟糕.

It seems like I ought to be able to accomplish the page refresh automatically when the selectOneMenu value is changed, but I've been unable to come up with a combination of attributes and events that will do that. I've tried various combinations of onchange="submit();", immediate="true" and valueChangeListener on the selectOneMenu, as well as execute="@all/@form", render="@all/@form" on the f:ajax event, all to no avail. My current workaround is to display a message asking the user to press the Refresh button whenever they change the selectOneMenu selection - pretty hokey.

推荐答案

Invoke window.location.replace(window.location.href) 而不是 submit()onchange 事件，如:

Invoke window.location.replace(window.location.href) rather than submit() in the onchange event, as in:

<h:selectOneMenu id="skipLines" ... onchange="window.location.replace(window.location.href);">
    <f:selectItems ... />
    <f:ajax ... />
</h:selectOneMenu>

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