In some use cases we want to postpone the loading of (parts of) the screen until all data sources are loaded. E.g. To avoid screen flickering or that there is a dependency with all the fetched data.
We now have a CheckIsAllDataLoaded action in all aggregates on after fetch that sets a local variable IsAllDataLoaded= IsAllDataLoaded OR (Aggr1.IsDataFetched AND Aggr2.IsDataFetched)
Would be great to have a an event thats triggered when all data is loaded.