addEventObserver:. Subscribes delegate object for data source events.The DataViewDatasource class is used to work with a view data source.
DataViewDatasource
<NSObject>
Delegate classes for working with a data source.
BubbleDataViewDatasource. Bubble chart data source.
ChartDataViewDatasource. Chart data source.
GridDataViewDatasource. Grid data source.
MapDataViewDatasource. Map data source.
addEventObserver:. Subscribes delegate object for data source events.
dataSelectionTitle. Returns text description of data sample.
dataSelectionTitleWithTimeaxisIndex:. Returns text description of data sample for the specified time.
removeEventObserver:. Removes the specified delegate object from the subscriber list for data source events.
removeEventObservers. Removes all subscribers.
sendEvent:. Creates an event and informs all subscribers about it.
updateData. Refreshes view data.
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