>So, I should put some code in the when event of each column. What code will you put there? Is there a way to plug this code dynamically?

u should put the following code
(I am refering to the properties as defined in the tip)
thisfrom.gnCurrRec=RECNO()

there is no way to add code to method dynamically
in VFP
what u can do (but i am almost sure u wouldn't want to do <s>)
is to subclass the grid columns (in code...) and use ADDOBJECT to add columns (to save the addobject there is an additional husle of writing a builder to do that automatically for u )

Arnon