Hi Dragan

>I'm using custom column class, so here I just check whether the column has the cleanup method (i.e. is it my column class, or the grid may have a column dynamically added or has it autorebuilt, in which case I may have a standard column), and run it if it has one. The column.cleanup then saves its own stuff. What can I say - I wrote this two years ago, and it has always worked.

Thanks for your help. This and the other post you responded are one and the same sort of. I was confident that the release custom method in the grid was being called by the form but it wasn't. Thanks for the recuse.zip link.