c#List結合IEqualityComparer求交集

標籤：

 

List元素類：

    public class MultiPointSearchingRet    {        public int ID { get; set; }        public string PlateNumber { get; set; }        public int VehicleBrand1 { get; set; }        public string BrandName { get; set; }      }

實現了IEqualityComparer的比較類：

    public class MultiPointSearchingRetComparer : IEqualityComparer<MultiPointSearchingRet>    {        public bool Equals(MultiPointSearchingRet x, MultiPointSearchingRet y)        {            return x.PlateNumber == y.PlateNumber && x.VehicleBrand1 == y.VehicleBrand1;        }        public int GetHashCode(MultiPointSearchingRet obj)        {            return obj.ID.GetHashCode();        }    }

調用：

            List<MultiPointSearchingRet>[] tmpLst = new List<MultiPointSearchingRet>[10];            List<MultiPointSearchingRet> retLst = new List<MultiPointSearchingRet>();            //略            for (int i = 0; i < length; i++)            {                if (i == 0)                    retLst = tmpLst[i];                else                    retLst = retLst.Intersect(tmpLst[i], new MultiPointSearchingRetComparer()).ToList();            }

 

c#List結合IEqualityComparer求交集