Triggering events on update rather than change
Posted: Sat Oct 04, 2008 9:51 am
I am trying to trigger an event when a parameter value is updated. Previously I did this with a "trigger if not equal to 'impossible value' " which of course triggers each time it changes. However this doesn't trigger when a paramater is updated with the same value it had before. So if for example I trigger on a CallerID number arrival it works the first time but not if the same caller calls back again. Is there an easy way to trigger on 'update' even if it's to the same value ?
K
PS I had considered that when the parameter field updates I copy it's content elsewhere and then reset it to an 'impossible value' such that a later 'same value' update would still trigger - but it's a bit messy if there's a better way.
K
PS I had considered that when the parameter field updates I copy it's content elsewhere and then reset it to an 'impossible value' such that a later 'same value' update would still trigger - but it's a bit messy if there's a better way.