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distinct values from a list using LINQ

distinct values from a list using LINQ to sql

This is basically used for get the distinct values from a linq list using GroupBy and Select with the help of C# and MVC 5. 

The code-sample as given below.

public IEnumerable<ServiceContract> getSContract(int id)
{
   ICollection<ServiceContract> serviceContract = mapper.MapDALServiceContracts2BAL(objDalServiceContract.getAllServiceContract());
   if (serviceContract.Count > 0)
   {
        if (id > 0)
        {
           serviceContract = serviceContract.Where(x => x.ContractID == id).ToList()
                    .Select(sc => new ServiceContract
                        {
                            ID = sc.ID,
                            EndDate = sc.EndDate,
                            StartDate = sc.StartDate,
                            InstallationDate = sc.InstallationDate,
                            TrialDays = sc.TrialDays
                        })
                     .GroupBy(x => x.EndDate)
                     .Select(y => y.First()).ToList();
          }
   };
   return serviceContract;
}

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