parameterized query with Access database

Question

Good evening, I research a lot on the net but I find not how used the parameter query to a database Access.in fact I create a connectionString and then I add this connection class

 

class connexionGS
    {
        private OleDbConnection con = new OleDbConnection(Properties.Settings.Default.connectGS);
        private OleDbConnection getconnexion()
        {
            //con = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=../../gestion reglement.accdb;Persist Security Info=False;");
            //con = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + AppDomain.CurrentDomain.GetData("DataDirectory") + "/gestion reglement.mdb;");
            string constr = Properties.Settings.Default.connectGS;
            con=new OleDbConnection(constr);
            return con;
        }

        public static void ExcuteNonQuery(string requete)
        {
            connexionGS connect = new connexionGS();
            OleDbConnection con = connect.getconnexion();
            con.Open();
            OleDbCommand cmd = new OleDbCommand(requete, con);
            cmd.ExecuteNonQuery();
            cmd.Dispose();
            con.Close();
        }

    }

 and then I add another class named product :

 

public class Produit
   {
      public void AjouterProduit()
      {
         throw new NotImplementedException();
      }

      public void ModifierProduit()
      {
         throw new NotImplementedException();
      }

      public void SupprimerProduit()
      {
         throw new NotImplementedException();
      }

      public String referenceP;
      public String libelle;
      public DateTime dateProduction;
      public Double prix;
      public int qte;

   }

 

knowing that I use oledb.

can i find an example that uses the parameter query with the database access and OleDbConnection?