protected void btnDelete_Click(object sender, EventArgs e)
        {
            DatabaseConnectivity dbcon = new DatabaseConnectivity();
            int clientType             = Convert.ToInt32(dropClientType.SelectedValue);
            int res = dbcon.deleteClientType(clientType);

            rowClientType.Visible = false;
            rowSubmit.Visible     = false;
            lblSubmission.Visible = true;
            lblSubmission.Text    = "Delete User Role Query is successfully executed with the Response Code: " + (res == 1 ? "0200 OK" : (res == -1 ? "0203 NOT OK" : "0500 SERVER ERROR"));
        }