public void Add_Possible_Aggregation(string Aggregation_Code )
{
// Make sure this collection has been defined
if (PossibleAggregations == null)
{
PossibleAggregations = new List<string> {Default_Aggregation.ToLower()};
}
if (!PossibleAggregations.Contains(Aggregation_Code.ToLower()))
PossibleAggregations.Add(Aggregation_Code.ToLower());
}