Hello Jeffrey,
I was wondering if you found a way to distinguish a grid's column header click (although you solved your problem)?
One way to do this might be to check the grid.row value, but then you would need an event (<grid>.row = -1 if a column was clicked). If a user clicks the column header i did not find an event (in PxPlus), the column is just sorted. In ProvideX (old version) the column click triggered an change event, which made it possible to programmatically influence column sorting.
Kind regards,