c# - 如何使用LinQ Distinct使用IEqualityComparer从集合中删除重复项

我无法从集合中删除重复项，我为Employee类实现了IEqualityComparer，但我仍未获得输出

static void Main(string[] args)
    {
        List<Employe> Employeecollection = new List<Employe>();

        Employeecollection.Add(new Employe("abc","def"));
        Employeecollection.Add(new Employe("lmn","def"));
        Employeecollection.Add(new Employe("abc", "def"));

        IEnumerable<Employe> coll = Employeecollection.Distinct(new Employe());

        foreach (Employe item in coll)
        {
            Console.WriteLine(item.fName + "   " + item.lName );
        }

    }

下面是Employee类的实现，在这里我实现了IEqualityComparer

class Employe : IEqualityComparer<Employe>
{
    public string fName { get; set; }
    public string lName { get; set; }

    public Employe()
    {

    }

    public Employe(string firstName, string LastName)
    {
        this.fName = firstName;
        this.lName = LastName;
    }

    #region IEqualityComparer<pcf> Members

    public bool Equals(Employe x, Employe y)
    {
        if (x.fName == y.fName && x.lName == y.lName)
        {
            return true;
        }

        return false;
    }

    public int GetHashCode(Employe obj)
    {
        return obj.GetHashCode();
    }

    #endregion
}

最佳答案

忘记IEqualityComparer，直接使用Linq即可:

EmployeeCollection.GroupBy(x => new{x.fName, x.lName}).Select(g => g.First());