Quote Originally Posted by Eduardo- View Post
My vote is for Option A. Implement the new behavior and do not add any new property.
If there are two or three VB6 programmers in the world that added code to fix that bug of the origonal FlexGrids and they decide to replace the controls with your Flex version, if they are lucky they'll read somewhere about the new behaviour and remove their fixing code (unlikely to happen) and if not, they at some point will notice the strange behavior and will realize that they must remove their fixing code because your control doesn't have the bug.

Adding new properties for things like this is confusing for the majority of people that never knew about the bug.
For example I use FlexGrids since many years ago but I never realized about this bug.

Because, let's see:
Lets suppose that the CompatibilyMode is False by default.
All the people that will use your Flex version will have the bug, unless they read somewhere that they must switch that property to True. Then 99.9% of the people will have the bug as the original had because almost nobody reads such things.
On the other hand, if the CompatibilityMode is True by default, the problem will be for the two or three in the whole world that wrote code to fix that bug (but just in the case that these 2 or 3 find your control and decide to replace the old ones with yours). Because the same thing: nobody reads about such things.
And in the case that it happens to some final users, what would be the "big problem"? It is only that with the keyboard the user will scroll two rows instead of one.
If it happens that might be one program goes out with that "problem", perhaps three or four final users will notice the weirdness of the scroll with the keyboard and decide to use the mouse instead.
Good arguments of how it works in the pactice.. Only in a perfect world it would work.

So, I improved then with today's update (when SelectionMode is ByRow/ByCol) the cursor key navigating. (also when shift or ctrl key is concerned)
No new property is included. It's just as is.