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ActionScript 3

eprevot123

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add attribute to a XML node at a specific position

May 2, 2012 5:42 AM

Tags: #as3 #xml #attribute

I have this XML :

var myNode:XML = <node attribute="123"/>

I know how to add an attribute to the node :

myNode.@otherAttribute = "abc";

But this adds the attribute to the end. What if I want to add it as the first attribute ? I would like to have :

<node otherAttribute="abc" attribute="123"/>

I know it is possible to add a child node to a specific position with insertChildAfter() or insertChildBefore() but I don't know if it's possible for an attribute.

375 Views 1 Reply Latest reply: liangyongning, May 2, 2012 7:52 PM

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1. liangyongning,

May 2, 2012 7:52 PM in reply to eprevot123

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there's no native method for this, maybe you should create some functions for this. just like

private function setAttribute(node:XML, name:String, value:String, index:int = -1):void
{
    var attrs:XMLList = node.attributes().copy(),
        l:int = attrs.length();
    if(index == -1 || index > l - 1)
    {
        node.@[name] = value;
    }
    else
    {
        delete node.@*;
        var idx:int = 0;
        for (var i:int = 0; i < l + 1; i++)
        {
            if(i == index)
            {
                node.@[name] = value;
            }
            else
            {
                var attr:XML = attrs[idx];
                node.@[attr.name()] = attr.toString();
                idx++;
            }
        }

    }
}

and use it like this:
setAttribute(myNode, "otherAttribute", "abc", 0);

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ActionScript 3

add attribute to a XML node at a specific position

May 2, 2012 5:42 AM

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