public ResultObj <List <ClassModel> > GetGroupProduct(string salesDateStart = "", string salesDateEnd = "", string clientId = "", bool needPage = false, int pageIndex = 1, int pageSize = 10)
{
if (string.IsNullOrEmpty(salesDateStart) || string.IsNullOrEmpty(salesDateEnd))
{
return(null);
}
IStatistic istatistic = new StatisticService();
return(Content(istatistic.GetGroupProduct(salesDateStart, salesDateEnd, clientId, needPage, pageIndex, pageSize)));
}
