Thanks Sergey & Fabio. That worked. Had to place the call to zGridColor in quotes and i had to remove the quotes from the returned RGB color in the zGridColor method.



>Change to :
>
>DynamicBackColor is a Character expression
>

>thisForm.pgfpagerefresh1.page4.Grdtmdataentry1.SetAll("DynamicBackColor", "thisform.zGridColor()", "Column" )	
>

>
>The evaluation of the DynamicBackColor expression must return a Color value
>

>* cColor = "RGB(255,255,255)"	 && useless
>DO CASE
>   CASE taskcomp	                  && done... GREEN
>      RETURN RGB(215,255,215)
>   CASE EMPTY(taskend) AND taskbeg <= DATE() + 9
>      RETURN IIF(taskbeg <= DATE() + 2,RGB(255,222,213),RGB(250,253,193))
>   OTHERWISE
>      RETURN  RGB(255,255,255)  	&& white
>ENDCASE
>

>
>If you use a IIF(,IIF(,... expression you can remove the zGridColor method.