/// <summary>
        /// Alissa Duffy
        /// Updated: 2017/04/24
        ///
        /// Deny Approval.
        /// Standardized methods.
        /// </summary>
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnDeny_Click(object sender, RoutedEventArgs e)
        {
            if (_supplier != null)
            {
                try
                {
                    if (_supplierMgr.DenySupplier(_supplier, _userid))
                    {
                        MessageBox.Show("Supplier Denied.", "System Updated", MessageBoxButton.OK, MessageBoxImage.Exclamation);
                    }
                    else
                    {
                        MessageBox.Show("Supplier record not altered", "Oops, no record was modified", MessageBoxButton.OK, MessageBoxImage.Hand);
                    }
                }
                catch (Exception ex)
                {
                    MessageBox.Show("There was an error approving this record. Please try again later" + Environment.NewLine + ex, "Oops, something went wrong", MessageBoxButton.OK, MessageBoxImage.Error);
                }

                MessageBox.Show("Supplier not approved.", "System Updated", MessageBoxButton.OK, MessageBoxImage.Exclamation);
                this.Close();
            }

            if (_commercialCustomer != null)
            {
                try
                {
                    if (_customerMgr.DenyCommercialCustomer(_commercialCustomer, _userid))
                    {
                        MessageBox.Show("Commercial Customer Denied.", "System Updated", MessageBoxButton.OK, MessageBoxImage.Exclamation);
                    }
                    else
                    {
                        MessageBox.Show("Commercial Customer record not altered", "Oops, no record was modified", MessageBoxButton.OK, MessageBoxImage.Hand);
                    }
                }
                catch (Exception ex)
                {
                    MessageBox.Show("There was an error approving this record. Please try again later" + Environment.NewLine + ex, "Oops, something went wrong", MessageBoxButton.OK, MessageBoxImage.Error);
                }

                MessageBox.Show("Commercial Customer not approved.", "System Updated", MessageBoxButton.OK, MessageBoxImage.Exclamation);
                this.Close();
            }
        }