ActionScript 2.0 Language Reference - Adobe Help and Support

getBytesLoaded (XML.getBytesLoaded method)
public getBytesLoaded() : Number
Returns the number of bytes loaded (streamed) for the XML document. You can compare the
value of getBytesLoaded() with the value of getBytesTotal() to determine what
percentage of an XML document has loaded.
Availability: ActionScript 1.0; Flash Player 6
Returns
Number - An integer that indicates the number of bytes loaded.
Example
The following example shows how to use the XML.getBytesLoaded() method with the
XML.getBytesTotal() method to trace the progress of an XML.load() command. You must
replace the URL parameter of the XML.load() command so that the parameter refers to a
valid XML file using HTTP. If you attempt to use this example to load a local file that resides
on your hard disk, this example will not work properly because in test movie mode Flash
Player loads local files in their entirety.
// create a new XML document
var doc:XML = new XML();
var checkProgress = function(xmlObj:XML) {
var bytesLoaded:Number = xmlObj.getBytesLoaded();
var bytesTotal:Number = xmlObj.getBytesTotal();
var percentLoaded:Number = Math.floor((bytesLoaded / bytesTotal ) 100);
trace ("milliseconds elapsed: " + getTimer());
trace ("bytesLoaded: " + bytesLoaded);
trace ("bytesTotal: " + bytesTotal);
trace ("percent loaded: " + percentLoaded);
trace ("---------------------------------");
}
doc.onLoad = function(success:Boolean) {
clearInterval(intervalID);
trace("intervalID: " + intervalID);
}
doc.load("[place a valid URL pointing to an XML file here]");
var intervalID:Number = setInterval(checkProgress, 100, doc);
See also
getBytesTotal (XML.getBytesTotal method)
XML 1315