Thanks Mike, I'll try it.

>Hi Rodolfo,
>
>>How do I do it?
>
>You define it like this:
>
>

define class myheader as header
>
>procedure click
>
>    This.Parent.Parent.HeaderClick(this)
>
>endproc
>
>enddefine

Then you add it at run-time by removing the existing header and doing an addobject(). Then in your grid class make sure you have a HeaderClick method so you can add your code to the grid, this way you only need one header class kicking around, with multifunctional headers.