Flex:使用ActionScript修改hasSimpleContent()==true的节点的XML值
Flex:使用ActionScript修改hasSimpleContent()==true的节点的XML值,xml,apache-flex,actionscript-3,Xml,Apache Flex,Actionscript 3,(来源:) 我所要做的就是修改与树中当前选定节点对应的XML的文本值。除了将“abc”改为“xyz”,一切都是小菜一碟 [Bindable] public var xml:XML= <rootnode> Content A <parentnode Name="value" Attr2="4"> parent content1 <childnode Name="child" Attr2="fun">
(来源:) 我所要做的就是修改与树中当前选定节点对应的XML的文本值。除了将“abc”改为“xyz”,一切都是小菜一碟
[Bindable]
public var xml:XML=
<rootnode>
Content A
<parentnode Name="value" Attr2="4">
parent content1
<childnode Name="child" Attr2="fun">
child content
</childnode>
parent content 2
</parentnode>
abc <!-- Selected Node When Button Is Pressed-->
</rootnode>
;
private function XMLTreeLabel(node:Object):String{
if (XMLTree.dataDescriptor.isBranch(node)) {
return(node.name());
} else {
return(node.valueOf());
}
}
private function UpdateXMLContent():void
{
var Node:XML=XMLTree.selectedItem as XML;
if ((Node.hasSimpleContent())&&
(Node.nodeKind()=="text")&&
(Node.valueOf()=="abc")) {
Node='xyz' as XML; // I Get To This Line Of Code,
// But It Is Impossible To MODIFY
// The Value Of The Node
// None of these ways work either:
// XMLTree.selectedItem=XML('xyz');
// Node=XML('xyz');
// Node.text()[0]='xyz';
// Node.firstChild.nodeValue='xyz';
// Node.setChildren('xyz');
// Node[0]='xyz';
// Is changing the content of xml an unreasonable/impossible
// expectation for Flex?
}
}
[Bindable]
公共变量xml:xml=
内容A
父内容1
子内容
父内容2
abc
;
私有函数XMLTreeLabel(节点:对象):字符串{
if(XMLTree.dataDescriptor.isBranch(节点)){
返回(node.name());
}否则{
返回(node.valueOf());
}
}
私有函数UpdateXMLContent():void
{
var节点:XML=XMLTree.selectedItem为XML;
if((Node.hasSimpleContent())&&
(Node.nodeKind()=“文本”)&&
(Node.valueOf()=“abc”)){
Node='xyz'作为XML;//我得到这行代码,
//但这是不可能修改的
//节点的值
//这些方法都不起作用:
//selectedItem=XML('xyz');
//Node=XML('xyz');
//Node.text()[0]='xyz';
//Node.firstChild.nodeValue='xyz';
//Node.setChildren('xyz');
//节点[0]='xyz';
//更改xml的内容是否不合理/不可能
//对Flex的期望?
}
}
[…省略了一些代码…]
<mx:Tree height="100%" width="100%"
dataProvider="{xml}" labelFunction="XMLTreeLabel"
id="XMLTree"></mx:Tree>
<mx:Button x="185" y="335" label="Button"
click="UpdateXMLContent()"/>
另外,我知道我可以说xml.rootnode.blahblahblah=无论什么,但我需要修改树中表示的条目,因此无法硬编码到节点的路径。编辑:好的,这已经完全起作用了,祝你好运:
private function UpdateXMLContent():void
{
var NodeToModify:XML=XMLTree.selectedItem as XML;
if ((NodeToModify.hasSimpleContent())&&
(NodeToModify.nodeKind()=="text")&&
(NodeToModify.valueOf()=="abc")) {
var NodeParent:XML = NodeToModify.parent();
XMLTree.selectedItem = NodeParent.insertChildAfter(NodeToModify,"xyz");
var cn:XMLList = XMLList(NodeToModify.parent()).children();
for ( var i:Number = 0 ; i < cn.length() ; i++ )
{
if ( cn[i] == NodeToModify )
{
delete cn[i];
trace(NodeParent);
return;
}
}
//we didn't find the node, shouldn't be reached
return;
private函数UpdateXMLContent():void
{
var NodeToModify:XML=XMLTree.selectedItem为XML;
if((NodeToModify.hasSimpleContent())&&
(NodeToModify.nodeKind()=“文本”)&&
(NodeToModify.valueOf()=“abc”){
var NodeParent:XML=NodeToModify.parent();
XMLTree.selectedItem=NodeParent.insertchildfter(NodeToModify,“xyz”);
var cn:XMLList=XMLList(NodeToModify.parent()).children();
对于(变量i:Number=0;i
以下是删除元素的解决方案: