How to combine multiple worksheet Change events Excel VBA - excel

Question

I need to combine the following 3 subroutines into a single worksheet change event but I am unsure how.
I have tried writing one sub in the worksheet editor and another in the workbook editor. However given that I have 3 subroutines all referring to the same worksheet, I am unsure how to combine them. Any help is greatly appreciated!
Private Sub Worksheet_Change(ByVal Target As Range)
If Intersect(Target, Range("D3:D100")) Is Nothing Then
Exit Sub
Else
Dim i As Integer
For i = 3 To 100
If Range("D" & i).Value = "Remote" Then
Range("O" & i).Value = "N/A"
Range("P" & i).Value = "N/A"
Range("Q" & i).Value = "N/A"
End If
Next i
End If
End Sub
Private Sub Worksheet_Change(ByVal Target As Range)
If Intersect(Target,Range("H3:H100")) Is Nothing Then
Exit Sub
Else
Dim e As Integer
For e = 3 To 100
If Range("H" & e).Value = 1 Then
Range("I" & e).Value = "N/A"
End If
Next e
End If
End Sub
Private Sub Worksheet_Change(ByVal Target As Range)
If Intersect(Target,Range("I3:I100")) Is Nothing Then
Exit Sub
Else
Dim e As Integer
For e = 3 To 100
If Range("I" & e).Value = 1 Then
Range("H" & e).Value = "N/A"
End If
Next e
End If
End Sub

Answer 1

Flip the logic.
If Intersect(Target, Range("D3:D100")) Is Nothing Then
Exit Sub
Else
...
End If
Change this to
If Not Intersect(Target, Range("D3:D100")) Is Nothing Then
' Remove Exit Sub
' Remove Else
...
End If
Do the same for the two other Intersect calls and then combine everything into one Worksheet_Change handler.
Most likely you want to disable events as well, to avoid re-triggering the event when writing to the sheet:
Private Sub Worksheet_Change(ByVal Target As Range)
On Error GoTo SafeExit
Application.EnableEvents = False
' Your three Intersect checks
SafeExit:
Application.EnableEvents = True
End Sub

Answer 2

try this. put this in the worksheet, not the workbook
Private Sub Worksheet_Change(ByVal Target As Range)
Dim c As Integer
If Not Intersect(Target, Range("D3:D100")) Is Nothing Then
c = 1
Else
If Not Intersect(Target, Range("H3:H100")) Is Nothing Then
c = 2
Else
If Not Intersect(Target, Range("I3:I100")) Is Nothing Then
c = 3
End If
End If
End If
Select Case c
Case 1
' your stuff
Case 2
'your stuff
Case 3
'your stuff
Case Else
End Select
End Sub