Is there a way to do this :
SubSonic.Where filter = new SubSonic.Where();
filter.ColumnName = Region.Columns.Region;
filter.Comparison = SubSonic.Comparison.IsNot;
filter.ParameterValue = null;
SubSonic.Aggregate orderBy = new SubSonic.Aggregate(Region.Columns.RegionName, SubSonic.AggregateFunction.GroupBy);
RegionCollection regions = new RegionCollection().Where(filter).GroupBy(groupBy).Load();
The "GroupBy" part in the last line doesn't compile... (I'm using SubSonic 2.1)