Not sure what the source of your Grid1 is, or how it's set up, but maybe you need to specify its source, after you update Temp.

>hi,
>still same.
>
>>Don't use thisform.grid1.refresh(), use this.refresh(). I don't know if this is the reason for your error, though.
>>
>>>hi,
>>>i try but still,
>>>

>>>LPARAMETERS nColIndex
>>>
>>> thisform.text4.value=thisform.grid1.column2.text1.value
>>>   select  mac1
>>> locate for nam=upper(alltrim(thisform.text4.value))
>>> thisform.text2.value=mac1.dvno
>>> select temp
>>>thisform.grid2.visible=.t.
>>>thisform.Grid2.RecordSource=SPACE(0)
>>>select nam,macwork1 from mac1;
>>>         where dvno = thisform.text2.Value ;
>>>      into cursor crsMyCursor
>>>thisform.Grid2.RecordSource="crsMyCursor"
>>>
>>>UPDATE temp set sum1=d1+d2+d3+d4+d5+d6+d7+d8+d9+d10,;
>>>  sum2=d11+d22+d33+d44+d55+d66+d77+d88+d99,;
>>>  sum3=iif(d1+d2+d3+d4+d5+d6+d7+d8+d9+d10=0 or d1+d2+d3+d4+d5+d6+d7+d8+d9+d10=0,0,(sum2/sum1)*100)
>>>thisform.grid1.refresh()
>>>

>>>