Remove duplicate from list in ASP.Net MVC

Hi sureshMGR,

You can't use distinct to get records.

From the result you can select indivisual distinct records.

Check this example. Now please take its reference and correct your code.

Controller

public class HomeController : Controller
{
    // GET: Home
    public ActionResult Index()
    {
        var items = ReferenceCrisisSplEvents()
            .Select(x => new
            {
                YEAR = x.StartDate.Year,
                LINEID = x.LineID,
                WORKSHOP = x.WorkshopTypeListID,
            }).ToList();

        // Get Distinct Year.
        List<int> years = items.Select(x => x.YEAR).Distinct().ToList();
        // Get Distinct LINEID.
        List<string> lineIDs = items.Select(x => x.LINEID).Distinct().ToList();
        // Get Distinct WORKSHOP.
        List<string> workshopTypes = items.Select(x => x.WORKSHOP).Distinct().ToList();
        return View();
    }

    private List<CrisisSplEvent> ReferenceCrisisSplEvents()
    {
        List<CrisisSplEvent> events = new List<CrisisSplEvent>();
        events.Add(new CrisisSplEvent { StartDate = DateTime.Now, LineID = "lineid1", WorkshopTypeListID = "workshop1" });
        events.Add(new CrisisSplEvent { StartDate = DateTime.Now.AddDays(10), LineID = "lineid2", WorkshopTypeListID = "workshop2" });

        return events;
    }

    public class CrisisSplEvent
    {
        public DateTime StartDate { get; set; }
        public string LineID { get; set; }
        public string WorkshopTypeListID { get; set; }
    }
}

Screenshot