Prevent entry of invalid values using VBA in Microsoft Excel

 

Question:
Entries of invalid values in area A1:B6 are to be prevented, in case of an error a respective message box to be displayed.

Answer:
Insert the following code in This Workbook module.

Private Sub Worksheet_Change(ByVal Target As Range)
   Dim var As Variant
   If IsEmpty(Target) Then Exit Sub
   If Intersect(Target, Range("Calculating")) _
      Is Nothing Then Exit Sub
   var = Application.Sum(Range("Calculating"))
   If IsError(var) Then
      Beep
      MsgBox "Please enter the correct value!"
      Target.Value = ""
   End If
End Sub


One thought on “Prevent entry of invalid values using VBA in Microsoft Excel

  1. I want to know more bout auto_open macro . Its not running in my excel20000 version, I want to know whether it works in excel2000 or there is a bug in my version.

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