Hi, all.
I made the form with pageframe of which the first page has one-to-many grid. The form works good except for telling error when it is being closed. The error message is 'Data type is invalid for this property'.
I couldn't trap the bad in code using debugger anyhow and I suspect that the relation between tables in one-to-many grid might cause error but not sure.
Would anyone tell me the hint for solving the problem ?

P.S : Why can't I go to the another forum in UT ? My browser has only VFP in Forum list box..