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

        private AzureAccount MergeAccountProperties(AzureAccount account1, AzureAccount account2)
        {
            if (account1 == null || account2 == null)
            {
                throw new ArgumentNullException("account1");
            }
            if (!string.Equals(account1.Id, account2.Id, StringComparison.InvariantCultureIgnoreCase))
            {
                throw new ArgumentException("Account Ids do not match.");
            }
            if (account1.Type != account2.Type)
            {
                throw new ArgumentException("Account1 types do not match.");
            }
            AzureAccount mergeAccount = new AzureAccount
            {
                Id = account1.Id,
                Type = account1.Type
            };

            // Merge all properties
            foreach (AzureAccount.Property property in Enum.GetValues(typeof(AzureAccount.Property)))
            {
                string propertyValue = account1.GetProperty(property) ?? account2.GetProperty(property);
                if (propertyValue != null)
                {
                    mergeAccount.Properties[property] = propertyValue;
                }
            }

            // Merge Tenants
            var tenants = account1.GetPropertyAsArray(AzureAccount.Property.Tenants)
                    .Union(account2.GetPropertyAsArray(AzureAccount.Property.Tenants), StringComparer.CurrentCultureIgnoreCase);

            mergeAccount.SetProperty(AzureAccount.Property.Tenants, tenants.ToArray());

            // Merge Subscriptions
            var subscriptions = account1.GetPropertyAsArray(AzureAccount.Property.Subscriptions)
                    .Union(account2.GetPropertyAsArray(AzureAccount.Property.Subscriptions), StringComparer.CurrentCultureIgnoreCase);

            mergeAccount.SetProperty(AzureAccount.Property.Subscriptions, subscriptions.ToArray());

            return mergeAccount;
        }