/// <summary>
        /// Chargement de la fenêtre de modification d'un client.
        /// </summary>
        /// <param name="b"></param>
        /// <param name="cli"></param>
        public Gestion_Fiche_Client(bool b, Clients cli)
        {
            InitializeComponent();
            bIsUpdate = b;
            Commerciaux com = new Commerciaux();
            com = CDAO.FindCom(cli.Commercial);
            if (cli.Type)
            {
                radioButton_Particulier.Checked = true;

            }
            else
            {
                radioButton_Entreprise.Checked = true;
            }
            textBox_ID.Text = Convert.ToString(cli.Id);
            textBox_Coeff.Text = Convert.ToString(Math.Round(cli.Coeff, 2));
            textBox_NomCommercial.Text = com.Nom;
            textBox_PrenomCommercial.Text = com.Prenom;
            if (cli.Civilite == "M")
                radioButton_Monsieur.Checked = true;
            else
                radioButton_Madame.Checked = true;
            textBox_Nom.Text = cli.Nom;
            textBox_Prenom.Text = cli.Prenom;
            textBox_Societe.Text = cli.Entreprise;
            textBox_Adresse.Text = cli.Adresse;
            textBox_CP.Text = cli.Codepostal;
            textBox_Ville.Text = cli.Ville;
            textBox_Pays.Text = cli.Pays;
            textBox_Mail.Text = cli.Mail;
            textBox_Tel.Text = cli.Telephone1;
            textBox_Tel2.Text = cli.Telephone2;
            radioButton_Particulier_CheckedChanged(null, null);
            radioButton_Entreprise_CheckedChanged(null, null);
            a = b = c = d = E = f = g = h = i = j = true;
        }
        /// <summary>
        /// Permet de retrouver le commercial associé au client.
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public Commerciaux FindCom(int id)
        {
            _connect.Open();

            Commerciaux result = new Commerciaux();
            SqlCommand requete = new SqlCommand("SELECT * FROM COMMERCIAUX WHERE com_id = @id", _connect);
            requete.Parameters.AddWithValue("@id", id);

            SqlDataReader lecture = requete.ExecuteReader();

            while (lecture.Read())
            {
                result.ID = Convert.ToInt32(lecture["com_id"].ToString());
                result.Civilite = lecture["com_civilite"].ToString();
                result.Nom = lecture["com_nom"].ToString();
                result.Prenom = lecture["com_prenom"].ToString();
            }

            _connect.Close();

            return result;
        }