[英]how to use selectOneMenu with object in selectItems
I don`t understand how to use ArrayList of objects in f:selectitems. 我不明白如何在f:selectitems中使用对象的ArrayList 。 I use composite components and code below is not work:
我使用复合组件,下面的代码不起作用:
<h:selectOneMenu id="kladrRegion-dctKladrRegion"
tabindex="100"
value="#{cc.attrs.kladrRegion}"
styleClass="comboBox ui-corner-all inputText ui-inputfield kladrSearchFormInput kladrSearchFormSelectWidth selectHight"
style="font-size: 13px; width: 300px;"
binding="#{cc.attrs.cbKladrRegion}" >
<f:selectItems value="#{cc.attrs.kladrRegions}" var="region"
itemLabel="#{region.value}" itemValue="#{region.id}" />
<f:ajax
listener="#{cc.attrs.kladrRegionChange}" />
</h:selectOneMenu>
This code does not work, because the attribute var receive a new value after adding a second composite component. 此代码不起作用,因为属性var在添加第二个复合组件后会收到新值。 In the previous composite components selectOneMenu will not be displayed.
在之前的复合组件中,将不会显示selectOneMenu 。 How to make a drop-down list in this case?
在这种情况下如何制作一个下拉列表?
I found solution of my problem. 我找到了解决问题的方法。 Follow to this post: JSF 2 composites and binding for validation
关注这篇文章: JSF 2复合和绑定验证
SelectOneMenu needs to have "binding" attribute with unique value. SelectOneMenu需要具有唯一值的“绑定”属性。 After adding second composite component Error <f:ajax> contains an unknown id
添加第二个复合组件后,错误<f:ajax>包含未知的ID
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