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问题描述

我无法从集合中移除重复的,我已经实现的IEqualityComparer为Employee类还是我没有得到输出

 静态无效的主要(字串[] args)
    {
        清单<雇工> Employeecollection =新的List<雇工>();        Employeecollection.Add(新雇工(ABC,高清));
        Employeecollection.Add(新雇工(LMN,DEF));
        Employeecollection.Add(新雇工(ABC,高清));        IEnumerable的<雇工>科尔= Employeecollection.Distinct(新雇工());        的foreach(在科尔雇工项)
        {
            Console.WriteLine(item.fName ++ item.lName);
        }    }

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

 类雇工:&的IEqualityComparer LT;雇工>
{
    公共字符串FNAME {搞定;组; }
    公共字符串LNAME {搞定;组; }    公共雇工()
    {    }    公共雇工(串名字,姓氏字符串)
    {
        this.fName =名字;
        this.lName =姓氏;
    }    #地区的IEqualityComparer<&PCF GT;会员    公共布尔等于(雇工X,雇工Y)
    {
        如果(x.fName == y.fName&放大器;&安培; x.lName == y.lName)
        {
            返回true;
        }        返回false;
    }    公众诠释GetHash code(雇工OBJ)
    {
        返回obj.GetHash code();
    }    #endregion
}


解决方案

忘记的IEqualityComparer,只是使用Linq直接:

  EmployeeCollection.GroupBy(X =>新建{x.fName,x.lName}),选择(G => g.First());

I am unable to remove the duplicates from collection , i have implemented IEqualityComparer for the class Employee still i am not getting the output

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 );
        }

    }

The Below is the Employee class implementation , here i implemented 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
}
解决方案

Forget IEqualityComparer and just use Linq directly:

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

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10-10 16:17