Input Validation using VBA

[VoxBox-Richard]

Hello,
I have been told it is possible to create input validation using visual
basic so I could give a warning if the input was within a certain range of
values,
and a stop message if it was between another.
So in my situation I want a stop message if the input is below that of
another cell, and a warning if it is double the value of the same other cell.
The cell is using direct input.
Thank you.
Richard.

 

[Bob Phillips]

Something like this

Private Sub Worksheet_Change(ByVal Target As Range)
Const WS_RANGE As String = "H1:H10" '<== change to suit

On Error GoTo ws_exit
Application.EnableEvents = False

If Not Intersect(Target, Me.Range(WS_RANGE)) Is Nothing Then
With Target

If .Value < 0 Or .Value > 10 Then

MsgBox "Invalid value, correct it"
End If
End With
End If

ws_exit:
Application.EnableEvents = True
End Sub

'This is worksheet event code, which means that it needs to be
'placed in the appropriate worksheet code module, not a standard
'code module. To do this, right-click on the sheet tab, select
'the View Code option from the menu, and paste the code in.