Hello everyone,
I'm using James Wards implementation of a virtual paged grid
(http://www.jamesward.com/2010/10/11/data-paging-in-flex-4/
https://github.com/jamesward/DataPaging/blob/master/src/PagedList.as)
It mostly works fine but I get an Exception in GridViewLayout.as when pulling
the vertical scrollbar right to the end resulting in loading the last Datablock.
It crashes in here:
private function freeLinearElements (
elements:Vector.<IVisualElement>,
oldIndices:Vector.<int>,
newIndices:Vector.<int>,
lastIndex:int):void
{
// TODO(hmuller): rewrite this, should be one pass (no indexOf)
for (var i:int = 0; i < elements.length; i++)
{
const offset:int = newIndices.indexOf(oldIndices[i]);
if ((oldIndices[i] == lastIndex) || (offset == -1))
{
const elt:IVisualElement = elements[i];
if (elt)
{
freeGridElement(elt);
elements[i] = null;
}
}
}
}
The elements Vector (and thus the int i variable) is larger than the length of
the oldIndices Vector therefore access to oldIndices[i] throws an exception at
some point.
I don't know how to catch this Exception in my Application Code - if this would
be possible at all.
To fix this issue I surrounded the loop with a try catch block and built a new
spark.swf - absolutely not the way I want to handle this :(
Should this be filed as a bug or is there any suggestion where I could tweak my
application code to prevent this exception?
Regards
Andi
