I've taken over a project and there are some efficiency issues that I would like some advice on. To simplify, let's say that I have 2 pages in a frame where the 1st contains a grid of a master table and the 2nd has some detail based on a child table. The current functional logic is that whenever the pointer moves in the master table (ie, grid on 1st page) it checks to see if there is a match in the child table (detail on 2nd page). If there is a match then the 2nd page becomes active, but if not then the 1st page remains active. They have seek logic and a form refresh in the AfterRowColChange method to determine the value of a logical form property. This property is then used to determine the active page. It works, but the problem is a significant delay when moving in the grid on the 1st page. I tried using eof() based on the relationship that exists, but I didn't see any change in performance. I should add that the parent class also has logic to handle highlighting the row on the grid. Any ideas?

Regards, Renoir