enableevents in event codes
 

I hope this is not a dumb question!

in some event codes I see in the beginning the code statement
application.enableevents=false
and then at the end
application.enableevents=true

are these two statements (I understnad if one is there the otehr should be
there) necessary and why?
Thanks and regards.
mine excel 2002(windows xp)

enableevents in event codes
 

For example, if you have code inside a WorkSheetChange event that changes
the worksheet then it would trigger the WorkSheetChange code again:

Private Sub Worksheet_Change(ByVal Target As Range)
ActiveCell = ActiveCell + 1
End Sub

So my question is, why doesn't this cause an endless loop? It stops when
activecell value hits 227.

Doug


"R..VENKATARAMAN" wrote in message
...
I hope this is not a dumb question!

in some event codes I see in the beginning the code statement
application.enableevents=false
and then at the end
application.enableevents=true

are these two statements (I understnad if one is there the otehr should be
there) necessary and why?
Thanks and regards.
mine excel 2002(windows xp)

enableevents in event codes
 

In most case yes - it stops the macro retriggering itself

In the following example the macro will run everytime any cell is
changed even when the macro changes a1

Private Sub Worksheet_Change(ByVal Target As Range)
range("a1").value=target.address & " Changed"
End Sub


In the follwing example the macro changing a1 does not trigger a fresh
update to a1

Private Sub Worksheet_Change(ByVal Target As Range)
application.enableevents=false
range("a1").value=target.address & " Changed"
application.enableevents=true
End Sub


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