Multiple Conditions For Form

G'Day:

I have a form that I created that allows the user to input an "ExhibitNo" and then a "PlacingNo" to allow each entry to receive a set monetary amount (based on values in a table).

The "ExhibitNo" has two references linked to it. They are "ClassNo" and "ExhibitorID".

My supervisors want me to make it so that when the "ExhibitNo" is entered on the form that it will not allow a monetary amount.

This is where I started, but it does not work. Does anyone have a better idea?

Private Sub Combo14_AfterUpdate()
Me.Refresh
If [ClassNo] >= 0 >= 5000 Then
If [ExhibitorNo] <= 0 >= 499 Then
If [Placinggrade] = "Blue" Then
[Premium] = [Blue]
End If
If [Placinggrade] = "Red" Then
[Premium] = [Red]
End If
If [Placinggrade] = "White" Then
[Premium] = [White]
End If
End If
End If

If [ClassNo] >= 5000 Then
If [ExhibitorNo] <= 500 Then
If [Placinggrade] = "Blue" Then
[Premium] = [Blue]
End If
If [Placinggrade] = "Red" Then
[Premium] = [Red]
End If
If [Placinggrade] = "White" Then
[Premium] = [White]
End If
End If
End If

If [ClassNo] >= 5000 Then
If [ExhibitorNo] >= 500 Then
[Premium] = 0
End If
End If

End Sub

Thanks