public bool SaveValidTicketNos(string id,string[] ticketNos, string checkType, string checkMan)
{
bool result = false;
List<Carstartlistticket>enties=new List<Carstartlistticket>();
using (var context = new MiniSysDataContext())
{
try
{
foreach (var ticketNo in ticketNos)
{
Orderticket temp = context.Orderticket.ByTicketNo(ticketNo).SingleOrDefault();
if (temp != null)
{
Ticketline ticketline= temp.Ticketline;
string currencyType = temp.CurrencyType;
float personAllowance=GetPersonCountAllowance(context,ticketline, currencyType);
Carstartlistticket carstartlistticket = new Carstartlistticket()
{
CsltId = Guid.NewGuid().ToString(),
Carstartlist = new Carstartlist(){CslId = id},
LeaveDate = temp.LeaveDate,
OnPointName = temp.OnpointName,
OffPointName = temp.OffpointName,
OutTicketMan = temp.OutBy,
TicketNo = temp.TicketNo,
ChekMan = checkMan,
Type = string.IsNullOrEmpty(checkType)?(short?)null:Convert.ToInt16(checkType),
CreatedOn = DateTime.Now,
CreatedBy = checkMan,
NumbserAllowance = personAllowance
};
enties.Add(carstartlistticket);
}
}
context.BeginTransaction();
context.Carstartlistticket.InsertAllOnSubmit(enties);
context.SubmitChanges();
bool changeStateResult=ChangeTicketState(context, ticketNos,checkMan);
if(changeStateResult)
{
context.CommitTransaction();
result = true;
}
else
{
context.RollbackTransaction();
}
}
catch (Exception e)
{
LogHelper.WriteLog(string.Format("CarstartlistService.SaveValidTicketNos({0},{1},{2},{3})",id,ticketNos,checkType,checkMan),e);
context.RollbackTransaction();
}
}
return result;
}
我的代码在上面。我怀疑这些代码的性能很差。在这一点上表现不佳
Orderticket temp = context.Orderticket.ByTicketNo(ticketNo).SingleOrDefault();
,实际上,我通过args方法得到一个字符串数组,然后我想通过ticketNos从数据库中获取所有数据,这里我使用一个循环,我知道如果我这样写我的代码会导致性能问题,它会再引导一次数据库访问,如何避免这个问题并提高代码性能,例如,仅通过数据库访问获取所有数据我忘了告诉你我使用的 ORM,恩,ORM 是基于 PlinqO 的 NHibernate
我期待着你的每一个答案,谢谢