>>You may get into some complicated calculation of grid height in grid.resize - so that the grid always shows a whole number of rows (plus, from my experience, two pixels more - in VFP8 that was a way to avoid some scrolling issues, IIRC).

>Thanks for your response. I guess if there are no other option then calculations is what we have to aim for.

I would not change the grid height based on the user changing the row height -- this would be confusing and lead to potentially unusual grid heights.

I would instead keep the grid height fixed and allow the user to change the row height to only allow a full set of records to display (not allow partial). Basically, the row height would be allowed to be changed to a height based on the number of rows that can be viewed. As the user increases/decreases the height -- you would "snap" to a height based on the number of visible records and adjust for the amount of partial record. Other words, if the user selects a row height that leaves a partial row, then you adjust further in program code to increase/decrease the height based on the number of full rows; i.e.

row height = (grid height - header height) / number of full rows

Not sure of the events involved but this would be my approach.