Cannot scroll through a mx:List?

I have a mx:List containing images with a custom itemRenderer, and if I try to scroll through the list I get this error:

TypeError: Error #1010: a term is undefined and has no properties.

at mx.controls.listClasses::ListBase/shiftRow() [C:\autobuild\galaga\frameworks\projects\fram ework\src\mx\controls\listClasses\ListBase.as:7072]

at mx.controls.listClasses::ListBase/scrollVertically() [C:\autobuild\galaga\frameworks\proje cts\framework\src\mx\controls\listClasses\ListBase.as:6774]

to mx.controls.listClasses::ListBase/set verticalScrollPosition() [C:\autobuild\galaga\frameworks\projects\framework\src\mx\control s\listClasses\ListBase.as:1334]

at mx.controls.listClasses::ListBase/mouseWheelHandler() [C:\autobuild\galaga\frameworks\proj ects\framework\src\mx\controls\listClasses\ListBase.as:8076]

at mx.controls::List/mouseWheelHandler() [C:\autobuild\galaga\frameworks\projects\framework\s rc\mx\controls\List.as:2749]

Here is the code for the list:

" < mx:List id = 'horizontalList" verticalScrollPolicy ="on"

"" dataProvider = "bannerList{}"

"" itemRenderer = "BannerThumbnailRenderer"

"" = number of lines "bannerList.length{}"

"" columnCount = "1"

"" rowHeight = "180"

" horizontalScrollPolicy ="off"width ="100%"/ >

This seems to be a very simple thing, I'm doing, why I get this error? How to do this? (I need the custom itemRenderer)

Ah yes.  You are not supposed to set the property 'name' of a rendering engine.

What was your objective with name = "BannerThumbnailRenderer"?  If you remove that

everything should work better.

Tags: Flex

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