Hey Glen,
It's quite simple actually, just use [brackets]. Look at the below code:
var xml:XML = <subscribeable>
<object>
<id>1</id>
<name>system_management</name>
<notifications>
<notification>
<id>1</id>
<name>status</name>
</notification>
</notifications>
</object>
<object>
<id>17</id>
<name>sequence_management</name>
<notifications>
<notification>
<id>1</id>
<name>status</name>
</notification>
<notification>
<id>2</id>
<name>play</name>
</notification>
<notification>
<id>3</id>
<name>stop</name>
</notification>
</notifications>
</object>
</subscribeable>
var nodeName:String = "name";
trace(xml.object[nodeName]);
And if you want to use dynamic attributes, you do something like:
trace(xml.object.(@[nodeName]=="value"));
- Taka
On Wed, Sep 9, 2009 at 5:05 AM, Glen Pike <[email protected]> wrote:
> Hi,
>
> I am having some issues with e4x filtering when I try and use a "dynamic"
> element in my expressions...
>
> Using the XML below (somewhat truncated) I am trying to match either the
> "id" or the "name" depending on the variable type passed in:
>
> private function _subscriberEventNameFromIds(objId:* = 0, funcId:int = 0,
> is_func:Boolean = true):String {
> var objName:String;
> var funcName:String;
> //_subscriptionList contains the XML below...
> //....
> var obj:XMLList;
> var idx:String = "name";
> if(objId is int) {
> idx = "id";
>
> }
> //The following expression does not work, I cannot use idx
> "dynamically"..
> obj = _subscriptionList.object.(child(idx) == objId);
> //..., instead I have to do the following.
> /*
> if(objId is int) {
> idx = "id";
> obj = _subscriptionList.object.(child("id") == int(objId));
> } else {
> obj = _subscriptionList.object.(child("name") ==
> String(objId));
> }
> */
> }
>
> Does anyone know if /how I can do this dynamically?
> Glen
>
> <subscribeable>
> <object>
> <id>1</id>
> <name>system_management</name>
> <notifications>
> <notification>
> <id>1</id>
> <name>status</name>
> </notification>
> </notifications>
> </object>
> <object>
> <id>17</id>
> <name>sequence_management</name>
> <notifications>
> <notification>
> <id>1</id>
> <name>status</name>
> </notification>
> <notification>
> <id>2</id>
> <name>play</name>
> </notification>
> <notification>
> <id>3</id>
> <name>stop</name>
> </notification>
> </notifications>
> </object>
> </subscribeable>
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