protected override void OnPropertyChanged(string propertyName)
{
switch (propertyName) {
case "SelectedPort":
case "SelectedYellowPage":
case "IsModified":
case "IsListenersModified":
case "IsYellowPagesModified":
case "PortCheckStatus":
case "PortMapperExternalAddresses":
break;
default:
IsModified = true;
break;
}
base.OnPropertyChanged(propertyName);
}