public void SaveVersion <T>(T cName, int UserId)
{
int Version = 1;
ReportFilter val = (ReportFilter)(object)cName;
var result = _db.ReportFilter_History.Where(i => i.FilterID == val.FilterID).OrderByDescending(x => x.Version).FirstOrDefault();
Version = (result == null) ? 1 : result.Version + 1;
ReportFilter_History rfHistory = new ReportFilter_History();
val.CopyProperties(rfHistory);
rfHistory.Version = Version;
rfHistory.ModifiedDate = DateTime.Now;
rfHistory.UserId = UserId;
rfHistory.FilterID = val.FilterID;
_db.ReportFilter_History.Add(rfHistory);
_db.SaveChanges();
}