C#list combined with IEqualityComparer to seek the intersection

List element class:

     Public classMultipointsearchingret { Public intID {Get;Set; }  Public stringPlatenumber {Get;Set; }  Public intVehicleBrand1 {Get;Set; }  Public stringbrandname {Get;Set; } }

The IEqualityComparer comparison classes are implemented:

     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 ();        }    }

Call:

list<multipointsearchingret>[] Tmplst =Newlist<multipointsearchingret>[Ten]; List<MultiPointSearchingRet> Retlst =NewList<multipointsearchingret>();            //slightly             for(inti =0; i < length; i++)            {                if(i = =0) Retlst=Tmplst[i]; ElseRetlst= Retlst.intersect (Tmplst[i],Newmultipointsearchingretcomparer ()).            ToList (); }

C#list combined with IEqualityComparer to seek the intersection