use of generic list

Question

hello,how to centralize that part of code with the use of a generic list.

DG.DataSource = null;
           var source = new BindingSource();
           source.DataSource = Lcls.lc;
           DG.DataSource = source;

 that is my source code I insert and my problem is localized in MyData.cs file

MyData.cs 

class MyData:clslistes<Object>
    {

        public void RemplirDataGridList(DataGridView DG,clslistes<Object> Lcls)
        {
            DG.DataSource = null;
            var source = new BindingSource();
            source.DataSource = Lcls.lc;
            DG.DataSource = source;
        }
    }

 clslistes.cs

 

abstract class clslistes<T>
    {
       public static List<T> lc = new List<T>();
       public clslistes()
       {

       }
    }

 clsClient.cs

 

class clsClient:clslistes<clsClient>
    {
        private int _NumCl;

        public int Numero
        {
            get { return _NumCl; }
            set { _NumCl = value; }
        }
        private string _NomCl;

        public string GETSETNomCl
        {
            get { return _NomCl; }
            set { _NomCl = value; }
        }
        private string _telCl;

        public string GETSETTelCl
        {
            get { return _telCl; }
            set { _telCl = value; }
        }
        private string _adressCl;

        public string GETSETadressCl
        {
            get { return _adressCl; }
            set { _adressCl = value; }
        }
        private string _EmailCl;

        public string GETSETEmailCl
        {
            get { return _EmailCl; }
            set { _EmailCl = value; }
        }
        private string _VilleCl;

        public string GETSETvilleCl
        {
            get { return _VilleCl; }
            set { _VilleCl = value; }
        }
        private string _paysCl;

        public string GETSETpaysCl
        {
            get { return _paysCl; }
            set { _paysCl = value; }
        }
        public clsClient()
        {}

        public clsClient(int NumCl, string NomCl, string telCl, string adressCl, string EmailCl, string VilleCl, string paysCl)
        {

            this._NumCl = NumCl;
            this._NomCl = NomCl;
            this._adressCl = adressCl;
            this._telCl = telCl;
            this._EmailCl = EmailCl;
            this._VilleCl = VilleCl;
            this._paysCl = paysCl;

        }

        public bool rechercheClient(int num)
        {
            foreach (clsClient cl in lc)
            {
                if (cl.Numero == num)
                    return true;

            }
            return false;

        }

        public bool ajoutclient(clsClient cl)
        {
            if (this.rechercheClient(cl.Numero) == false)
            {
                lc.Add(cl);
                return true;
            }

            return false;
        }

        private int rechercheclientposit(int num)
        {
            clsClient cl = new clsClient();
            for (int i = 0; i < lc.Count; i++)
            {
                cl = (clsClient)lc[i];
                if (cl.Numero == num)
                {
                    return i;

                }
            }
            return -1;

        }



        public bool modifierclient(int numcl,clsClient Ncli)
        {
            if (this.rechercheclientposit(numcl) == -1)
                return false;
            else
            {
                lc[rechercheclientposit(numcl)] = Ncli;
                return true;

            }


        }

        public bool supprimerClient(int num)
        {
            if (this.rechercheclientposit(num) == -1)
                return false;
            else
            {
                lc.RemoveAt(rechercheclientposit(num));
                return true;

            }

        }
    }

 knowing that the error is localized exactly in this line MyData.cs file:

 

source.DataSource = Lcls.lc;