VirtualColumnProducerGetCacheKeyCore Method

Implement to return an object that serves as a cache key for the producer. The returned object should implement Equals so that it returns a different value for each model state that influences if the resultvalue returned for a given VirtualValueRequest is different. The object should also implement GetHashCode to match that. This method will be called when GetCacheKeyTriggerCore fires.

protected virtual Object GetCacheKeyCore()