单列排序

list = GetInstruList(brand,yqxh, poll, pointCode, startTime, endTime, page, rows);
IList<Instrument_Temp> pagelist = list.Take(rows * page).Skip(rows * (page - 1)).ToList();
var listorder = from listtemp in pagelist select listtemp;//每小时的列进行排序
if (!string.IsNullOrEmpty(sort) && !sort.Equals(""))
{
if (order.Equals("asc"))
{
if (sort == "JointTime") { listorder = from listtemp in pagelist orderby listtemp.RegionName, listtemp.JointTime ascending select listtemp; }
}
else
{
if (sort == "JointTime") { listorder = from listtemp in pagelist orderby listtemp.RegionName, listtemp.JointTime descending select listtemp; }
}
}

pagelist = listorder.ToList();