Remove duplicates in the list using linq

Question

I have a class Items with properties (Id, Name, Code, Price).

The List of Items is populated with duplicated items.

F

Answer 1

An universal extension method:

public static class EnumerableExtensions
{
    public static IEnumerable DistinctBy(this IEnumerable enumerable, Func keySelector)
    {
        return enumerable.GroupBy(keySelector).Select(grp => grp.First());
    }
}

Example of usage:

var lstDst = lst.DistinctBy(item => item.Key);