No error message, but no any changr in thr grid color.
>>Hi
>>Why do I get the expression invalid error message?
>>

cgship=substr(othernr.shipmentid,3,3)
>>
>>thisform.grdnrother.shipment.dynamicbackcolor= [IIF(alltrim(cgship)='G',rgb(255,0,0),RGB(255,255,255))]

>
>
>because cgship is going out of scope. try:
>

>cgship=[ALLTRIM(substr(othernr.shipmentid,3,3))]
>thisform.grdnrother.shipment.dynamicbackcolor= [IIF(]+cgship+[='G',rgb(255,0,0),RGB(255,255,255))]
>