can I take last five rows from database usinq linq

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ASP.NET

LINQ

dear sir,
how to take last five data (rows) when join multiple table from database using linq.

Posted 28-Dec-11 21:28pm

Gnanavel Rng

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Ankur^\m/ · Answer 1 · 2011-12-28T21:41:00

Solution 2

Use Order By Desc clause to arrange the rows in descending order and then select the 5 rows using Take(5) method. Column_Name will be the id column or the column you want to sort the table through.

Hope it helps!

Posted 28-Dec-11 21:41pm

Ankur^\m/

Comments

Abhinav S 29-Dec-11 3:44am

I was just about to post the same answer.

Ankur^\m/ 29-Dec-11 3:47am

Thanks!

Abhinav S 29-Dec-11 5:28am

Yes it was indeed a very disappointing boxing day test. :(

janareddyjanareddy · Answer 2 · 2011-12-28T21:35:00

C#

var temp = db.Positions.Where(P => P.DeviceID == device.ID);
            List<Position> tempPositions = FilterPosition(temp.ToList<Position>());
            var tt = FilterStops(tempPositions, new TimeSpan(0, 30, 0), 100);
            List<JsonDevicePositionModel> returnPositions = (

                                          from p in tt

                                             select new 
                                                 JsonDevicePositionModel

                                             {
                                                 DeviceID = p.Position.DeviceID,
                                                 Latitude = p.Position.Latitude,
                                                 Longitude = p.Position.Longitude,
                                                 SerialNumber = p.Position.Device.SerialNumber,

                                                 Speed = p.Position.Speed,


                                             }).ToList(); 

            //    }
            return Json(returnPositions, JsonRequestBehavior.AllowGet);

        }