Trigger observer when data not changed

Hi,
I want trigger an observer function in a particular case when
the data of a spry region is NOT changed. Does anybody know how to
do this?
Thanks

Hi huubd90,
You can only trigger observer functions when a notification
has been received.
For the data sets, we have the following notifications:
onPreLoad, onPostLoad, onLoadError, onPreSort, onPostSort,
onCurrentRowChanged.
For data regions, we have:onLoadingData, onPreUpdate,
onPostUpdate, onError.
For more information, check the :
data
set overview
You must use one of these.

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