Let's assume that you are setting A1 thru typing (rather than a formula).
Enter the folowing event macro in the worksheet code area:

Private Sub Worksheet_Change(ByVal Target As Range)
Set t = Target
Set a = Range("A1")
If Intersect(t, a) Is Nothing Then Exit Sub
Application.EnableEvents = False
If a.Value = "no" Then
Range("A4:A15").EntireRow.Hidden = True
Else
Range("A4:A15").EntireRow.Hidden = False
End If
Application.EnableEvents = True
End Sub


Because it is worksheet code, it is very easy to install and use:

1. right-click the tab name near the bottom of the window
2. select View Code - this brings up a VBE window
3. paste the stuff in and close the VBE window

If you save the workbook, the macro will be saved with it.

To remove the macro:

1. bring up the VBE windows as above
2. clear the code out
3. close the VBE window

To learn more about macros in general, see:

http://www.mvps.org/dmcritchie/excel/getstarted.htm

To learn more about Event Macros (worksheet code), see:

http://www.mvps.org/dmcritchie/excel/event.htm


--
Gary''s Student - gsnu200858


"TG" wrote:

Hello,

How would I be able to hide lets say row 4-15 if A1 had the word no?
Is this even possible? Also, what if i also want to hide rows 20-100 if A19
says "no"?

Thank you in advance,

TG