I have a grid which I use for navigation. One column, just titles, going through table of articles. Click anywhere on it, and the article details fill the rest of the form. Did so for about sixteen years.

Then I fixed something unrelated and got into a situation when the other methods of navigation (searchbox, doubleclicking on editboxes with pseudolinks to other linked articles) work just as they always did, only this grid would be one behind. I.e. I click on article C, it still displays the last article. I click on article F, it now shows article C. Hmmm... and there's the proper reload/refresh in the ARCC of the grid, so wtf? And why does it still work, but one behind?

Turns out the BRCC fires, and it calls save/refresh, so the previous record is finally shown. But then the ARCC actually does not fire. Weird, because the grid has the visible markings for the current record, which is dutifully following the mouse (or arrow keys, if used).

This annoyed me so much that I just couldn't resolve it yesterday, lest I make it worse by needlessly fiddling with code. This morning I eliminated a few suspects and... aha, finally: grid.AllowCellSelection=.f. - dunno why, and even so, why did the current record still change and the current record marker (highlightStyle=2) go with it?

Well it did, the row still got selected, BUT the ARCC wasn't firing. Put grid.AllowCellSelection back to .t. and set it .readonly=.t. instead. And it just started working, magically.