Is the form HELP1 modal?
In any case, since you run another form from within the grid textbox method, many things can happen as the grid will loose focus when the help form launches before the Valid method ends.

>Hi Nick,
>
>I am sorry dispatching long code as per your instruction. This code is written on second column valid event of my grid text box. after selection I want to skip on third column text box which is not going.
>
>

>*publ x
>*x=0
>publ y
>y=0
>
>
>*IF Subsidiary code IS BLANK EXECUTE THIS LINE
>
>factp=thisform.grid1.column1.combo1.value
>fsbcd=thisform.grid1.column2.text1.value
>
>If len(ALLT(fsbcd)) = 0
>	
>	if factp="C"
>	
>	select code,name,GLCODE from customer order by code into cursor curcust
>	
>	do form help1
>
>	if y=1
>
>	thisform.grid1.column2.text1.value=ccust
>	THISFORM.grid1.column3.text1.VALUE=SUBS(CURCUST.GLCODE,1,8)
>	THISFORM.grid1.column4.text1.VALUE=SUBS(CURCUST.GLCODE,9,6)
>	thisform.grid1.column2.text1.refresh()
>	*thisform.grid1.column3.text1.setfocus()
>	
>	retu
>	
>	else
>	
>	return .f.
>	
>	endi
>	endi
>	
>	if factp="S"
>	
>	select code,name,GLCODE from supplier order by code into cursor curcust
>	
>	do form help1
>
>	if y=1
>
>	thisform.grid1.column2.text1.value=ccust
>	THISFORM.grid1.column3.text1.VALUE=SUBS(CURCUST.GLCODE,1,8)
>	THISFORM.grid1.column4.text1.VALUE=SUBS(CURCUST.GLCODE,9,6)
>	thisform.grid1.refresh()
>	retu
>	
>	else
>	
>	return .f.
>	
>	endi
>	endi

* more code here
	
>endi
>						
>****** END
>

>
>>Hi Sajjad,
>>
>>Could you post here that code? Which method did you place it in - textbox.Valid()? Do I understand it right that you press Enter on second column and you suppose it to go the third column?
>>
>>>Hi Nick,
>>>Thanks a lot for helping. I face one more problem in grid. i am using validation on second column of grid. when i press enter its invoke help list for that column..my code validate perfectly and selection coming in column but curos not moving to another text box. If i click mouse button on next column once more valid event fire and than after selection cursor going on another text box. Any idea to skip column in grif after validation please....
>>>
>>>Regards,
>>>Sajjad
>>>