Microsoft.Azure.ServiceManagemenet.Common.ProfileClient.MergeSubscriptionProperties C# (CSharp) Method

        private AzureSubscription MergeSubscriptionProperties(AzureSubscription subscription1, AzureSubscription subscription2)
        {
            if (subscription1 == null || subscription2 == null)
            {
                throw new ArgumentNullException("subscription1");
            }
            if (subscription1.Id != subscription2.Id)
            {
                throw new ArgumentException("Subscription Ids do not match.");
            }
            AzureSubscription mergedSubscription = new AzureSubscription
            {
                Id = subscription1.Id,
                Name = subscription1.Name,
                Environment = subscription1.Environment,
                State = (subscription1.State != null &&
                         subscription1.State.Equals(subscription2.State, StringComparison.OrdinalIgnoreCase)) ?
                        subscription1.State : null,
                Account = subscription1.Account ?? subscription2.Account
            };

            // Merge all properties
            foreach (AzureSubscription.Property property in Enum.GetValues(typeof(AzureSubscription.Property)))
            {
                string propertyValue = subscription1.GetProperty(property) ?? subscription2.GetProperty(property);
                if (propertyValue != null)
                {
                    mergedSubscription.Properties[property] = propertyValue;
                }
            }

            // Merge RegisteredResourceProviders
            var registeredProviders = subscription1.GetPropertyAsArray(AzureSubscription.Property.RegisteredResourceProviders)
                    .Union(subscription2.GetPropertyAsArray(AzureSubscription.Property.RegisteredResourceProviders), StringComparer.CurrentCultureIgnoreCase);

            mergedSubscription.SetProperty(AzureSubscription.Property.RegisteredResourceProviders, registeredProviders.ToArray());

            // Merge Tenants
            var tenants = subscription1.GetPropertyAsArray(AzureSubscription.Property.Tenants)
                    .Union(subscription2.GetPropertyAsArray(AzureSubscription.Property.Tenants), StringComparer.CurrentCultureIgnoreCase);

            mergedSubscription.SetProperty(AzureSubscription.Property.Tenants, tenants.ToArray());

            return mergedSubscription;
        }