You cannot change the DataType of the cells. The DataType (int, string, DateTime, bool, …) is set when the column is added, but it cannot be changed.
If all your cells are loaded as “string”, you could assign a different format to the CellViewerManagers (for each type of cells) and each CellEditorManagers.
Imported from legacy forums. Posted by CharlesB (had 3018 views)