Using of the generic list

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

C#

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

C#

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

C#

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

clsClient.cs

C#

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

C#

source.DataSource = Lcls.lc

What I have tried:

i try to change the input parametres of

C#

clslistes<Object> Lcls

with

C#

clslistes<T> Lcls

but it shows error

C#

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

Posted 19-Oct-16 14:30pm

abboudi_ammar

Updated 19-Oct-16 23:11pm

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Comments

[no name] 19-Oct-16 21:29pm

List is already a generic class, why are you trying to create a generic class from a generic class?

johannesnestler 20-Oct-16 4:58am

just a comment: I'd strongly recomend you overthink your naming-conventions - maybe to something more .NET-ish? I get eye-cancer when I read your code ;)

Rahul VB 20-Oct-16 5:43am

:) hahaha i agree

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johannesnestler · Answer 1 · 2016-10-19T23:11:00

So which error? - what you do here makes no sense to me... - a generic type that represents a list (hard to know from your naming) that contains a generic list of the same type - is this what you wanted?

But anyway I guess that your problem is just the declaration of RemplirDataGridList - it has to be the same (t) - come on, really read the .NET naming conventions! - as you declared you clslistes instance so it's:

C#

public void RemplirDataGridList<t>(DataGridView DG,clslistes<t> Lcls)

naming conventions for NET.
https://msdn.microsoft.com/en-us/library/ms229045(v=vs.110).aspx
(I'm not joking: programming is inventing and remembering names - from all years of my experience, this is the most important thing I would say to be successful in programming...)