ACC2000: Cannot Use AutoNumber to Determine If Record Is New Record (210411)

RESOLUTION

Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements. Access includes a property called NewRecord. You can check this property in the BeforeUpdate event of a form to determine if the current record is a new one. For example:

1. Open the sample database Northwind.mdb.
2. Open the Categories form in Design view.
3. Add the following code to the BeforeUpdate property of the form:

   Private Sub Form_BeforeUpdate(Cancel As Integer)
       Dim newmsg As String
       Dim newrec As Integer
   
       newrec = Me.NewRecord
   
       If newrec = True Then
           newmsg = "This is a new record"
           MsgBox newmsg
       End If
   End Sub
   					

4. Close the module.
5. Open the form in Form view and click the new record selector.
6. Type Bogus Category in the Category Name box and click the new record selector again. Note that a message stating, "This is a new record" appears. Click OK and you will be on a new record.

If IsNull([<CounterFieldName>]) Then
    ...
End If