private void cmdDeleteList_Click(object sender, EventArgs e)
        {
            DatabaseManagement database = new DatabaseManagement();

            database.OpenConnection();


            database.DeleteList(((UsersList)cboList.SelectedItem).Name);
            userInfo = (EnterpriseUser)database.GetUser(userInfo.Email);

            database.CloseConnection();

            displayEnterpriseLists();
            lstList.Items.Clear();
            cmdListToDelete.Enabled = false;
            cmdDeleteList.Enabled   = false;
            cmdAddToList.Enabled    = false;
            txtIban.Enabled         = false;
        }