Hi,

The following code gives an error - at run time

InvalidCastException was unhandled
Operator '=' is not defined for type 'DatarowView' and 'Nothing'

Code:
If Not Me.CmbTruckTyp.SelectedItem = Nothing Then

 Select Case Me.CmbTruckTyp.SelectedItem.ToString
    Case "Mercedes-Benz"
         cmdMercBenzModels.Visible = True
         cmbDafModels.Visible = False
    Case "Daf"
         cmdMercBenzModels.Visible = False
         cmbDafModels.Visible = True
    Case Else
         cmdMercBenzModels.Visible = False
         cmbDafModels.Visible = False

  End Select

End If
any help please