public Form_AddNewUser(bool _IsUpdate)
        {
            InitializeComponent();
            this.IsUpdate = _IsUpdate;
            //--------------------------------------
            DataTable dt = CLASS_USERS.SP_FULLCMBPERM();

            cmbPermission.DataSource    = dt;
            cmbPermission.DisplayMember = "Per_Name";
            cmbPermission.ValueMember   = "Per_ID";
            //---------------------------------------
            if (IsUpdate)
            {
                this.Text = "Editer l'utilisateur";
                btn.Text  = "Editer";
                DataTable dtbyid = CLASS_USERS.SP_DISPLAYALLUSERSBYID(Form_usersManangment.I);
                foreach (DataRow dr in dtbyid.Rows)
                {
                    txtUsername.Text             = dr["USERNAME"].ToString();
                    txtPasswrod.Text             = dr["PASSWORD"].ToString();
                    txtPasswordConfirmation.Text = dr["PASSWORD"].ToString();
                    txtFullName.Text             = dr["FULLNAME"].ToString();
                    cmbPermission.Text           = dr["PERMISSION"].ToString();
                }
            }
            else
            {
                this.Text = "Ajouter un utilisateur";
                btn.Text  = "Ajouter";
            }
        }