>>>Hi everybody,
>>>
>>>I'd like to copy several columns from one grid class to another grid class. I already tried "hack" method and ended up with columns without any controls in them.
>>>
>>>Can you suggest a better method?
>>>
>>>Thanks in advance.
>>
>>Add a temporary button with SaveAsClass code, run, click. Then delete unwanted columns in new class.
>>Cetin
>
>I wanted to copy columns to the existing class (add them at the end). I already manually created all extra columns, but I did something wrong along these lines and now in run-time my grid somehow becomes null (IOW, when I reference it, it doesn't seem to work). Still trying to figure out what is the problem here.

99% a wrong controlsource expression.
Cetin