XForms/带有插入来源的深层复制
< XForms
您想从模板中添加一个新的实例或元素。您想对模型中从一个实例到另一个实例的复杂 XML 进行深层复制。
我们将使用 XForms xf:insert 元素，并将 origin 属性设置为源实例。我们将使用 nodeset 属性来指示数据应该被复制到哪里。
<html
xmlns="http://www.w3.org/1999/xhtml"
xmlns:ev="http://www.w3.org/2001/xml-events"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xf="http://www.w3.org/2002/xforms">
<head>
<title>Using Origin to do a Deep Copy between instances</title>
<style type="text/css">
@namespace xf url("http://www.w3.org/2002/xforms");
body {font-family:Helvetica, sans-serif}
#source-repeat {border: blue solid 1px;}
#destination-repeat {border: green solid 1px;}
</style>
<xf:model>
<xf:instance xmlns="" id="source">
<data>
<a>A1</a>
<a>A2</a>
<a>A3</a>
</data>
</xf:instance>
<xf:instance xmlns="" id="destination">
<data/>
</xf:instance>
</xf:model>
</head>
<body>
<h1>Example of deep copy using XForms insert origin</h1>
<h3>Source:</h3>
<xf:repeat id="source-repeat" nodeset="instance('source')/a">
<xf:output ref="."/>
</xf:repeat>
<h3>Destination:</h3>
<xf:repeat id="destination-repeat" nodeset="instance('destination')/a">
<xf:output ref="."/>
</xf:repeat>
<xf:trigger>
<xf:label>Copy data from source to destination</xf:label>
<xf:action ev:event="DOMActivate">
<xf:insert
origin="instance('source')"
nodeset="instance('destination')"/>
</xf:action>
</xf:trigger>
</body>
</html>