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

Try this extension method out. Hopefully this could help.

public static class DistinctHelper
{
    public static IEnumerable DistinctBy(this IEnumerable source, Func keySelector)
    {
        var identifiedKeys = new HashSet();
        return source.Where(element => identifiedKeys.Add(keySelector(element)));
    }
}

Usage:

var outputList = sourceList.DistinctBy(x => x.TargetProperty);