protected IEnumerable <TTarget> ConvertInternal(IEnumerable <TSource> from, IMappingFactory mappingFactory)
{
var source = from?.ToList() ?? new List <TSource>(0);
if (!source.Any())
{
return(null);
}
var mapper = mappingFactory.Create <TSource, TTarget>();
return(mapper == null ? null : source.Select(item => mapper.Map(item)).ToList());
}