C# .NET Core linq Distinct
var distinctUsers = allUsers
.GroupBy(x => x.UserId)
.Select(x => x.First())
.ToList();C# .NET Core linq Distinct
var distinctUsers = allUsers
.GroupBy(x => x.UserId)
.Select(x => x.First())
.ToList();c# distinct comparer multiple properties
List<Person> distinctPeople = allPeople
.GroupBy(p => new {p.PersonId, p.FavoriteColor} )
.Select(g => g.First())
.ToList();how to use distinct in linq query in c#
var distValues = objList.Select(o=>o.typeId).Distinct().ToList();c# distinct comparer multiple properties
public static IEnumerable<TSource> DistinctBy<TSource, TKey>
(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector)
{
HashSet<TKey> seenKeys = new HashSet<TKey>();
foreach (TSource element in source)
{
if (seenKeys.Add(keySelector(element)))
{
yield return element;
}
}
}linq distinct
var uniquePeople = from p in people
group p by new {p.ID} //or group by new {p.ID, p.Name, p.Whatever}
into mygroup
select mygroup.FirstOrDefault();Copyright © 2021 Codeinu
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