Amazon.EC2.AmazonEC2Client.DescribeAvailabilityZones C# (CSharp) Method

        internal DescribeAvailabilityZonesResponse DescribeAvailabilityZones()
        {
            return DescribeAvailabilityZones(new DescribeAvailabilityZonesRequest());
        }
        internal DescribeAvailabilityZonesResponse DescribeAvailabilityZones(DescribeAvailabilityZonesRequest request)

        /// <summary>
        /// Load availability zones to view model with AWS data based on region selected and EC2 classic/vpc
        /// </summary>
        private void LoadAvailabilityZones(AmazonEC2Client ec2Client)
        {
            try
            {

                DescribeAvailabilityZonesRequest azreq = new DescribeAvailabilityZonesRequest();
                DescribeAvailabilityZonesResponse azresp = ec2Client.DescribeAvailabilityZones(azreq);
                Dispatcher.BeginInvoke(DispatcherPriority.Background, new Action(() =>
                {
                    vm.Zones.Clear();
                }));
                foreach (AvailabilityZone az in azresp.DescribeAvailabilityZonesResult.AvailabilityZone)
                {
                    Dispatcher.BeginInvoke(DispatcherPriority.Background, new Action(() =>
                    {
                        vm.Zones.Add(az);
                    }));
                }
            }
            catch (Exception ex)
            {
                LogManager.LogEntry(ex.Message);
                LogManager.LogEntry(ex.StackTrace);
                throw new DataLoadingException("Error occurred loading availability zones for region and environment type");
            }
        }