Yes, the interpretation is wrong. The columsAutoSizingOn grid property defines, on which events the grid should auto resize all columns (e.g. when the column panel is opened).
Whether a column can be resized at all is a column property.
While being on this topic, is there a way to disable all automatic resizing via columnsAutoSizingOn… and do the resizing that would happen automatically via a function? Like on “double click on column separator”, like it happens in excel?
there is an api function: sizeColumnsToFit that you may call to do the resizing
Thanks for the clarification/correction, Patrick.