替换AS3 XML子节点的值 [英] Replace xml subnode value in AS3

问题描述

我想更新XML结构的一个子节点的值。新的价值应该来自一个输入文本字段的实例名称是一样的，我应该更新节点的属性值。

例如，聚焦了文本框被称为label10的时候，我要编辑节点：

 ＆LT;标签ID =label10＆GT;
    ＆LT; ENG＆GT;简介＆LT; / ENG＆GT;
    ＆LT;德＆GT; DE描述＆LT; /德＆GT;
＆LT; /标签＆gt;
 

......，不过没关系，我用这个回调函数来实现它：

 私有函数onfocusout在（EVT：FocusEvent）方法：无效{
        变种nodeToModify：XML = xmlFillData.label（@ ID == evt.target.name）[0];。
        跟踪（nodeToModify是+ nodeToModify）;
}
 

现在我的问题是，我希望替换子节点ENG的内容或取消，取决于静态的类名为VarHolder定义的变量，但我没能做到这一点。

我试图用这条线的回调函数里面：

  nodeToModify.replace（VarHolder.activeLang，evt.target.text）;
 

但如果我跟​​踪nodeToModify，这是结果（标记消失）

 ＆LT;标签ID =label10＆GT;
存款准备金率
＆LT;德＆GT; DE描述＆LT; /德＆GT;
 

任何帮助吗？

---

编辑（和解决）：试图执行@jens答案。 这是我做的

  nodeToModify.replace（VarHolder.activeLang，新的XML（＆LT;+ VarHolder.activeLang +＆gt;中+ evt.target.text +＆LT; /+ VarHolder .activeLang +＆gt;中））;
 

解决方案

XML.replace（）并期望第二个参数是一个XML对象，然后转化到（基于XML）字符串。含义：它取代＆LT; ENG＆GT;简介＆LT; / ENG＆GT; 与 RRR ，其工作按预期。你需要传递一个XML对象或传递＆LT; ENG＆GT;存款准备金率＆LT; / ENG＆GT; 。如果 VarHolder.activeLang 显然是值ENG，你可以使用这样的：

  nodeToModify.replace（VarHolder.activeLang，＆LT;+ VarHolder.activeLang +＆gt;中+
                           evt.target.text +＆所述; /+ VarHolder.activeLang +＆gt;中）;
 

查看XML.replace（此链接了解更多信息）： 的http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/XML.html#replace%28%29

I'm trying to update a value in a subnode of an XML structure. New value should come from an Input TextField whose instance name is the same of the value of the attribute of the node I should update.

For example, when focusing out textfield called "label10", I should edit the node:

<label id="label10">
    <eng>Description</eng>
    <de>DE Description</de>
</label>

...and that's ok, I achieved it using this callback function:

private function onFocusOut (evt:FocusEvent):void {
        var nodeToModify:XML = xmlFillData.label.(@id==evt.target.name)[0];
        trace ("nodeToModify is " +nodeToModify );
}

Now my problem is I wish to replace the content of the subnode eng or de, depending on a variable defined in a static class called VarHolder, but I'm not able to do it.

I've tried to use this line inside the callback function:

 nodeToModify.replace (VarHolder.activeLang , evt.target.text);

but then if I trace nodeToModify, this is the result ( tag disappeared)

<label id="label10">
rrr
<de>DE Description</de>

Any help?

---

EDIT (and solved): trying to implement @jens answer. This is how I did it

 nodeToModify.replace (VarHolder.activeLang,  new XML("<" + VarHolder.activeLang + ">" +  evt.target.text + "</" + VarHolder.activeLang + ">"));

解决方案

XML.replace() does expect the 2nd parameter to be an XML-Object which then is converted to a (XML-)string. Meaning: it replaces '<eng>Description</eng>' with 'rrr' and its working as intended. You need to pass it an XML-object or pass it '<eng>rrr</eng>'. If the value of VarHolder.activeLang is plainly 'eng', you could use this:

nodeToModify.replace (VarHolder.activeLang ,  "<" + VarHolder.activeLang + ">" + 
                           evt.target.text + "</" + VarHolder.activeLang + ">");

See this link for more information on XML.replace(): http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/XML.html#replace%28%29

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