Hi Narcís,

thank you for your help. Now I know how to handle it.

Best regards
deha

Hi Narcís, thanks for your answer.
How do I tell a Series where the data is found? Like CheckDataSource says, it check the data source. As written in documentation DataSource may be a database or an other Series. But I want to use my memory data structure. Any ideas?

Is there a possibility to share the data in my internal data structures with a Series, so that my program internal data and the Series data are consistent? I see it is possible with a database or a file, but I want to use only memory.

Does Series copy the data or access it by reference?