我在XForms中遇到一些重复问题。我需要访问循环内的单选按钮字段的某些值。范围是在单选按钮选择了特定值时使输入文本可见。我希望所有重复都有这种行为（单选按钮和输入文本字段在循环内）。
它适用于一行，但是当我添加一个新行时，代码不再起作用。
我复制一个简单的例子来检查这种行为：
<xh:html xmlns:xh="http://www.w3.org/1999/xhtml"
xmlns:ev="http://www.w3.org/2001/xml-events"
xmlns:exf="http://www.exforms.org/exf/1-0"
xmlns:fb="http://orbeon.org/oxf/xml/form-builder"
xmlns:fr="http://orbeon.org/oxf/xml/form-runner"
xmlns:odt="http://orbeon.org/oxf/xml/datatypes"
xmlns:oxf="http://www.orbeon.com/oxf/processors"
xmlns:p="http://www.orbeon.com/oxf/pipeline"
xmlns:saxon="http://saxon.sf.net/"
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:sql="http://orbeon.org/oxf/xml/sql"
xmlns:xf="http://www.w3.org/2002/xforms"
xmlns:xi="http://www.w3.org/2001/XInclude"
xmlns:xpl="java:org.orbeon.oxf.pipeline.api.FunctionLibrary"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xxf="http://orbeon.org/oxf/xml/xforms"
xmlns:xxi="http://orbeon.org/oxf/xml/xinclude">
<xh:head>
<xh:title>Loop</xh:title>
<xf:model id="fr-form-model" xxf:expose-xpath-types="true">
<xf:instance xxf:readonly="true" id="fr-form-metadata">
<metadata>
<application-name>DHszw</application-name>
<form-name>Loop</form-name>
<title xml:lang="en">Loop</title>
<description xml:lang="en">Description of the form.</description>
</metadata>
</xf:instance>
<xf:instance id="fr-form-instance">
<form>
<category-1>
<subcategory-1-1/>
<element-1-1-1/>
<loop-group-0>
<loop-0>
<element-1-1-2/>
<element-1-1-3/>
</loop-0>
</loop-group-0>
<element-1-1-4/>
<element-1-1-5/>
</category-1>
</form>
</xf:instance>
<xf:bind xmlns:dataModel="java:org.orbeon.oxf.fb.DataModel" id="fr-form-binds"
ref="instance('fr-form-instance')">
<xf:bind id="category-1-bind" name="category-1" ref="category-1">
<xf:bind id="subcategory-1-1-bind" name="subcategory-1-1" ref="subcategory-1-1"/>
<xf:bind id="element-1-1-1-bind" name="element-1-1-1" ref="element-1-1-1"/>
<xf:bind id="group-loop-0-bind" name="group-loop-0-bind" ref="loop-group-0"
relevant="($element-1-1-1='yes' )">
<xf:bind id="loop-0-bind" name="loop-0" ref="loop-0" relevant="($element-1-1-1='yes' )">
<xf:bind id="element-1-1-2-bind" name="element-1-1-2" ref="element-1-1-2"
relevant="($element-1-1-1='yes' )"/>
<xf:bind id="element-1-1-3-bind" name="element-1-1-3" ref="element-1-1-3"
relevant="($element-1-1-2='yes' )"/>
</xf:bind>
</xf:bind>
<xf:bind id="element-1-1-4-bind" name="element-1-1-4" ref="element-1-1-4"
relevant="($element-1-1-1='no' ) or ($element-1-1-2='no' )"/>
<xf:bind id="element-1-1-5-bind" name="element-1-1-5" ref="element-1-1-5"
relevant="($element-1-1-1='no' ) or ($element-1-1-2='no' )"/>
</xf:bind>
</xf:bind>
<xf:instance id="fr-form-attachments">
<attachments>
<css filename="" mediatype="text/css" size=""/>
<pdf filename="" mediatype="application/pdf" size=""/>
</attachments>
</xf:instance>
<xf:instance id="fr-form-resources" xxf:readonly="false">
<resources>
<resource xml:lang="en">
<category-1>
<label>LoopCategory</label>
</category-1>
<subcategory-1-1>
<label><b>BasicSubcategory</b><hr></label>
<hint/>
<alert/>
</subcategory-1-1>
<element-1-1-1>
<label>Do you want a loop?</label>
<hint/>
<alert/>
<item>
<label>yes</label>
<value>yes</value>
</item>
<item>
<label>no</label>
<value>no</value>
</item>
</element-1-1-1>
<element-1-1-2>
<label>Do you want an Input Text?</label>
<hint>More</hint>
<alert/>
<item>
<label>yes</label>
<value>yes</value>
</item>
<item>
<label>no</label>
<value>no</value>
</item>
</element-1-1-2>
<element-1-1-3>
<label>Your input text</label>
<hint/>
<alert/>
</element-1-1-3>
<element-1-1-4>
<label>Why no loop?</label>
<hint/>
<alert/>
</element-1-1-4>
<element-1-1-5>
<label>End:</label>
<hint/>
<alert/>
</element-1-1-5>
</resource>
</resources>
</xf:instance>
<xf:instance id="fr-service-request-instance" xxf:exclude-result-prefixes="#all">
<response/>
</xf:instance>
<xf:instance xxf:readonly="true" id="loop-0-template">
<loop-0>
<element-1-1-2/>
<element-1-1-3/>
</loop-0>
</xf:instance>
</xf:model>
</xh:head>
<xh:body>
<fr:view>
<fr:body xmlns:xbl="http://www.w3.org/ns/xbl"
xmlns:dataModel="java:org.orbeon.oxf.fb.DataModel">
<fr:section bind="category-1-bind" id="category-1-control">
<xf:label ref="$form-resources/category-1/label"/>
<xh:tr>
<xh:td>
<xf:output bind="subcategory-1-1-bind" id="subcategory-1-1-control">
<xf:label mediatype="text/html" ref="$form-resources/subcategory-1-1/label"/>
<xf:hint ref="$form-resources/subcategory-1-1/hint"/>
<xf:alert ref="$fr-resources/detail/labels/alert"/>
</xf:output>
</xh:td>
</xh:tr>
<xh:tr>
<xh:td>
<xf:select1 appearance="full" bind="element-1-1-1-bind" id="element-1-1-1-control">
<xf:label ref="$form-resources/element-1-1-1/label"/>
<xf:hint ref="$form-resources/element-1-1-1/hint"/>
<xf:alert ref="$fr-resources/detail/labels/alert"/>
<xf:itemset ref="$form-resources/element-1-1-1/item">
<xf:label ref="label"/>
<xf:value ref="value"/>
</xf:itemset>
</xf:select1>
</xh:td>
</xh:tr>
<xf:group bind="group-loop-0-bind" id="group-loop-0-control">
<fr:grid bind="loop-0-bind" id="loop-0-control" max="10" min="1"
origin="instance('loop-0-template')"
repeat="true">
<xh:tr>
<xh:td>
<xf:select1 appearance="full" bind="element-1-1-2-bind" id="element-1-1-2-control">
<xf:label ref="$form-resources/element-1-1-2/label"/>
<xf:hint ref="$form-resources/element-1-1-2/hint"/>
<xf:alert ref="$fr-resources/detail/labels/alert"/>
<xf:itemset ref="$form-resources/element-1-1-2/item">
<xf:label ref="label"/>
<xf:value ref="value"/>
</xf:itemset>
</xf:select1>
</xh:td>
</xh:tr>
<xh:tr>
<xh:td>
<xf:input bind="element-1-1-3-bind" id="element-1-1-3-control">
<xf:label ref="$form-resources/element-1-1-3/label"/>
<xf:hint ref="$form-resources/element-1-1-3/hint"/>
<xf:alert ref="$fr-resources/detail/labels/alert"/>
</xf:input>
</xh:td>
</xh:tr>
</fr:grid>
</xf:group>
<xh:tr>
<xh:td>
<xf:input bind="element-1-1-4-bind" id="element-1-1-4-control">
<xf:label ref="$form-resources/element-1-1-4/label"/>
<xf:hint ref="$form-resources/element-1-1-4/hint"/>
<xf:alert ref="$fr-resources/detail/labels/alert"/>
</xf:input>
</xh:td>
</xh:tr>
<xh:tr>
<xh:td>
<xf:input bind="element-1-1-5-bind" id="element-1-1-5-control">
<xf:label ref="$form-resources/element-1-1-5/label"/>
<xf:hint ref="$form-resources/element-1-1-5/hint"/>
<xf:alert ref="$fr-resources/detail/labels/alert"/>
</xf:input>
</xh:td>
</xh:tr>
</fr:section>
</fr:body>
</fr:view>
</xh:body>
如果此代码在Orbeon服务器中运行，它将正常工作，直到我们在'repeat'元素中添加新行。然后，无论在单选按钮中选择的值如何，输入字段都会消失（或不可见）。
我想，添加行的副本，可能会有相同的元素名称（或更改原始元素名称）并导致此问题。但我需要访问每行的单选按钮的值。可能吗？这是一个已知的bug吗？怎么能实现这个目标？
答案 0 :(得分：1)
您可以使用元素的相对路径而不是bind变量来引用repeat中的元素值，因此在您的情况下：
替换：
($element-1-1-2='yes' )
与
(../element-1-1-2='yes')
另见orbeon calculated fields in a repeat break after first itiration
这在重复之外不起作用;我不确定你在第二个元素1-1-2条件中的预期逻辑。
此致
Jez的