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继承人一个简单的形式来帮助说明问题。这不是表单的完整代码，因为它太长了（或者过于臃肿）才能发布。因此，如果您打开Adobe LiveCycle并创建空白文档，请将以下内容作为主要内容插入。Adobe Acrobat重复一个表单没有明显的原因
然后将其保存为pdf。如果您打开pdf并保存，您将看到子窗体从显示一次变为显示两次。有没有人看到为什么这个代码/标记会导致表单的另一个实例在保存时被创建？
我并不熟悉LiveCycle来理解所有生成的语法，但似乎没有什么应该这样做。我认为，也许负责添加另一个表单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>