Question

I am trying to open a form as a dialog and also pass a string in the OpenArgs property. No matter what I try, I get an Invalid use of null error.

The form is not open. It’s not open in design mode either. Can anyone shed some light on this for me?

Here’s the calling line:

DoCmd.OpenForm strTmpForm, acNormal, , , , acDialog, "Hi"

Here’s the Form Open Sub on the target form

Private Sub Form_Open(Cancel As Integer)
    MsgBox Me.OpenArgs
End Sub

Answer 1

Are you sure the form isn’t open and hidden? It seems likely, since the usual dialog pattern usually involves hiding the dialog form to allow control to resume in the calling method.

To be certain:

If SysCmd(acSysCmdGetObjectState, acForm, strTmpForm) <> 0 Then
    DoCmd.Close acForm, strTmpForm
End If

If that’s not the problem then I’d ask if you can post the entire calling method rather than the calling line.