这是一个简单的表格来帮助说明问题。这不是表单的完整代码，因为它太长（或臃肿而不是）发布。因此，如果您打开Adobe LiveCycle并创建空白文档，请插入以下内容作为主要内容。
然后将其另存为pdf。如果你打开pdf并保存它，你会看到子窗体从显示一次到显示两次。有没有人知道为什么这个代码/标记会在保存时创建另一个表单实例？
我不太熟悉LiveCycle来理解所有生成的语法，但似乎没有任何东西应该这样做。我想也许负责添加表单的另一个实例的按钮在我不知情的情况下触发，但似乎并非如此，因为完全删除按钮并不能解决问题。
<subform y="1498.455mm" w="190.5mm" minH="9.234mm" layout="tb" name="ScheduleOne">
<subform w="100.783mm" minH="6.349mm" layout="tb" name="Form">
<subform y="47.164mm" w="190.5mm" minH="6.349mm" layout="tb" name="Form">
<draw name="Text17" minH="6.349mm" w="190.455mm">
<ui>
<textEdit>
<border>
<?templateDesigner StyleID aped1?>
<edge presence="hidden"/>
<edge presence="hidden"/>
<edge/>
<edge presence="hidden"/>
</border>
<margin/>
</textEdit>
</ui>
<value>
<text>subForm</text>
</value>
<font typeface="Times New Roman" size="11pt"/>
<margin topInset="0mm" bottomInset="0mm" leftInset="0mm" rightInset="0mm"/>
<para vAlign="middle" marginLeft="0pt" hAlign="center"/>
<traversal>
<traverse ref="ButtonGroup1[0].Button1[0]"/>
</traversal>
</draw>
<occur max="-1"/>
<keep intact="contentArea"/>
<?templateDesigner expand 1?></subform>
<subform name="ButtonGroup1" layout="lr-tb" relevant="- print" minH="6.017mm" w="190.5mm">
<keep intact="contentArea" previous="contentArea"/>
<margin bottomInset="1mm" leftInset="147.828mm" topInset="1mm"/>
<traversal>
<traverse operation="first" ref="Button1[0]"/>
</traversal>
<field relevant="-print" h="6mm" name="Button1" w="20mm">
<border hand="right">
<edge stroke="raised"/>
<fill>
<color value="212,208,200"/>
</fill>
<?templateDesigner StyleID apbx2?>
<?templateDesigner StyleID apbx2?>
<?templateDesigner StyleID apbx2?>
<?templateDesigner StyleID apbx2?>
<?templateDesigner StyleID apbx2?></border>
<caption>
<font typeface="Arial" size="9pt"/>
<para hAlign="center" vAlign="middle"/>
<value>
<text>Remove</text>
</value>
</caption>
<font typeface="Myriad Pro"/>
<ui>
<button highlight="inverted"/>
</ui>
<bind match="none"/>
<event activity="click" name="event__click">
<script contentType="application/x-javascript">
var inst = Form.instanceManager;
if (inst.count > 1) {
inst.removeInstance(inst.count - 1); } else {
xfa.host.messageBox("The minimum allowable number of fields is 1. You cannot remove any more fields.", "Warning", 3); }</script>
</event>
<traversal>
<traverse ref="Button1[1]"/>
</traversal>
</field>
<subform h="1.27mm" name="Subform1" w="2.54mm"/>
<field relevant="-print" h="6mm" name="Button1" w="20mm">
<border hand="right">
<edge stroke="raised"/>
<fill>
<color value="212,208,200"/>
</fill>
<?templateDesigner StyleID apbx2?></border>
<caption>
<font typeface="Arial" size="9pt"/>
<para hAlign="center" vAlign="middle"/>
<value>
<text>Add More</text>
</value>
</caption>
<font typeface="Myriad Pro"/>
<margin leftInset="0mm"/>
<ui>
<button highlight="inverted"/>
</ui>
<bind match="none"/>
<event activity="click" name="event__click">
<script contentType="application/x-javascript">
Form.instanceManager.addInstance(1);</script>
</event>
<traversal>
<traverse ref="Text16[0]"/>
</traversal>
</field>
<?templateDesigner expand 0?></subform>
<draw name="Text16" w="190.455mm">
<ui>
<textEdit/>
</ui>
<value>
<text>MainForm</text>
</value>
<font size="9pt" typeface="Arial"/>
<margin topInset="0mm" bottomInset="0mm" leftInset="0mm" rightInset="0mm"/>
<traversal>
<traverse ref="ButtonGroup2[0].Button1[0]"/>
</traversal>
<para hAlign="center"/>
</draw>
<occur max="-1"/>
<keep intact="contentArea"/>
<?templateDesigner expand 0?></subform>
<subform name="ButtonGroup2" layout="lr-tb" relevant="- print" minH="6.017mm" w="190.5mm">
<keep intact="contentArea" previous="contentArea"/>
<margin bottomInset="1mm" leftInset="147.828mm" topInset="1mm"/>
<traversal>
<traverse operation="first" ref="Button1[0]"/>
</traversal>
<field relevant="-print" h="6mm" name="Button1" w="20mm">
<border hand="right">
<edge stroke="raised"/>
<fill>
<color value="212,208,200"/>
</fill>
<?templateDesigner StyleID apbx2?>
<?templateDesigner StyleID apbx2?>
<?templateDesigner StyleID apbx2?>
<?templateDesigner StyleID apbx2?>
<?templateDesigner StyleID apbx2?></border>
<caption>
<font typeface="Arial" size="9pt"/>
<para hAlign="center" vAlign="middle"/>
<value>
<text>Remove</text>
</value>
</caption>
<font typeface="Myriad Pro"/>
<ui>
<button highlight="inverted"/>
</ui>
<bind match="none"/>
<event activity="click" name="event__click">
<script contentType="application/x-javascript">
var inst = Form.instanceManager;
if (inst.count > 1) {
inst.removeInstance(inst.count - 1); } else {
xfa.host.messageBox("The minimum allowable number of fields is 1. You cannot remove any more fields.", "Warning", 3); }</script>
</event>
<traversal>
<traverse ref="Button1[1]"/>
</traversal>
</field>
<subform h="1.27mm" name="Subform1" w="2.54mm"/>
<field relevant="-print" h="6mm" name="Button1" w="20mm">
<border hand="right">
<edge stroke="raised"/>
<fill>
<color value="212,208,200"/>
</fill>
<?templateDesigner StyleID apbx2?></border>
<caption>
<font typeface="Arial" size="9pt"/>
<para hAlign="center" vAlign="middle"/>
<value>
<text>Add More</text>
</value>
</caption>
<font typeface="Myriad Pro"/>
<margin leftInset="0mm"/>
<ui>
<button highlight="inverted"/>
</ui>
<bind match="none"/>
<event activity="click" name="event__click">
<script contentType="application/x-javascript">
Form.instanceManager.addInstance(1);</script>
</event>
</field>
<?templateDesigner expand 0?></subform>
<traversal>
<traverse operation="first" ref="Form[0].Form[0].Text17 [0]"/>
</traversal>
<?templateDesigner expand 1?></subform>
答案 0 :(得分：1)
因此，通过删除空子表单来“修复”此问题。没有人知道为什么，但删除子表单并赋予所有元素唯一名称可以防止元素重复。
据报道，这是Adobe的一个错误。