Run macro when cell contents change

[Tim Smith]

How can I get a macro to run automatically only when a
specific cell e.g. A1 has its value changed?
Many thanks.

 

[philip]

In VBA module in "ThisWorkbook" capture the
SelectionChange event. If the address of the target is
the correct cell address, then execute code.

Example :

Sub Worksheet_SelectionChange (ByVal Target as Range)
If Target.Address = "$A$1" then
' put your code here
end if
End Sub

 

[Bob Phillips]

Tim,

Worksheet event code

Private Sub Worksheet_Change(ByVal Target As Range)

Application.EnableEvents = False
On errot GoTo ws_exit
If Not Intersect(Target, Range("A1")) Is Nothing Then
'your code here
End If

ws_exit:
Application.EnableEvents = True
End Sub


Right-click on the sheet tab name, select the View Code option, and put the
code in there.

--

HTH

Bob Phillips
... looking out across Poole Harbour to the Purbecks

 

[Bob Phillips]

Philip,

If you use Worksheet_SelectionChange event then it goes in the appropriate
worksheet code module not ThisWorkbook. For ThisWorkbook, you would use

Private Sub Workbook_SheetSelectionChange(ByVal Sh As Object, ByVal Target
As Range)

and test the sheet as well.

--

HTH

Bob Phillips
... looking out across Poole Harbour to the Purbecks
(remove nothere from the email address if mailing direct)