How can I fill a Combobox in a datagridview from db mysql

Hello, I have a datagridview  which has a combobox.

I want to populate this comboboxes at runtime. But I don't know how.

In the database I have: 

Column1 : Name               Column2 : Quantity                          Column 3 : Date

a                                                 1                                                         2019
b                                                 2                                                         2018
c                                                 3                                                          2017
a                                                 4                                                          2015

So what I need is to show in my combobox for Name a : (1 - 2019)

                                                                                         (4 - 2015)

These two must be filled in the combobox.

For Name b the combobox will be : (2 - 2018)     

The code I tried:

using (MySqlDataAdapter sda = new MySqlDataAdapter(@"SELECT DISTINCT Name FROM articles", MyConnexion))  
        {  
            DataTable dt = new DataTable();  
            sda.Fill(dt);  
            DTG_Bordereau.AutoResizeColumns(DataGridViewAutoSizeColumnsMode.AllCells);  
            DTG_Bordereau.Columns[0].DataPropertyName = "Name";  
            DTG_Bordereau.Columns[3].Width = 300;  
            DTG_Bordereau.DataSource = dt;  
                try  
                {  
                    for (int i = 0; i < dt.Rows.Count; i++)  
                    {  
                        QuantiteDisponible.Items.Clear();  
                    MySqlDataAdapter sda2 = new MySqlDataAdapter("SELECT DISTINCT CONCAT(Quantite ,'PCS -' ,Date) as Conc FROM articles where Name='" + dt.Rows[i][0].ToString() + "'", MyConnexion);  
                    DataTable dt2 = new DataTable();  
                    sda2.Fill(dt2);  
                    QuantiteDisponible.DataSource = dt2;  
                    QuantiteDisponible.DisplayMember = "Conc";  
                    QuantiteDisponible.ValueMember = "Conc";  
                }  
            }  
                catch  
                { }  
        }