Hi. In your example there is a bug. http://joxi.ru/12MjnW3hv83wAJ
When I start to edit cell in the second column - all other cells changed their display values (because they have integer values and on beforeEdit we have change options for full column). How I can dynamically change options for one cell? I have country column and city column. In each row I have differents countries - so I need different options for each city cell. And when I change country - I want get new cities options by ajax. It is possible? Thanks!