>On a similar vain, I am working on a gridbuilder (prompted in part by your articels in foxtalk):

Nice to hear that :).

>In the builder I have code in the afterrowcolevent like this
>

>LPARAMETERS nColIndex
>
>this.Parent.txt1.Value=this.Columns[nColIndex].header1.caption
>this.Parent.txt.Value=this.Columns[nColIndex].header1.Alignment
>this.Parent.txt3.Value=this.Columns[nColIndex].header1.Fontsize
>this.Parent.txt4.Value=nColIndex
>

>
>but nColIndex evaluates to .F.
>
>what could bw wrong???

Fox? Never had such a case... but then this is event code, which you may be calling from somewhere without actually passing a parameter. Just add

if pcount()=0
   set step on
endif

after the lParameters statement, and see how did it get called. Maybe something in the framework, or parent classes, or whatever - calls the grid.ARCC code for its own reasons, without passing a parameter. I know I do that at times, and I know it's a bit dirty thing to do.