Events for when vertical/horizontal grid scrollbars appear/disappear

Often, our program creates a grid that is higher than the grid height and a vertical scrollbar automatically appears that seemingly prevents Row.Adjust() from properly executing.This means for us that the lowest rows are not correctly displayed (e.g. the row height becomes 16 pixels or two lines are compressed into one row).  

I already have a small routine to recursively call Row.Adjust() after a specific event. I would like to be able to call it after the vertical scrollbar has appeared, but there are no events to support this. A ScrollBar_VisiblityChanged event would be very helpful for us.