Braintree.RequestBuilder.ToQueryString C# (CSharp) Method

        public string ToQueryString()
        {
            string underscoredParent = Parent.Replace("-", "_");

            var qs = new QueryString();
            foreach (var pair in topLevelElements)
            {
                qs.Append(pair);
            }
            foreach (var pair in elements)
            {
                qs.Append(ParentBracketChildString(underscoredParent, pair.Key.Replace("-", "_")), pair.Value);
            }

            return qs.ToString();

        }

        public override string ToQueryString()
        {
            var builder = new RequestBuilder();
            builder.AddTopLevelElement("merchant_id", MerchantId);
            builder.AddTopLevelElement("redirect_uri", RedirectUri);
            builder.AddTopLevelElement("scope", Scope);
            builder.AddTopLevelElement("state", State);
            builder.AddTopLevelElement("client_id", ClientId);

            foreach (var paymentMethod in PaymentMethods) {
                builder.AddTopLevelElement("payment_methods[]", paymentMethod);
            }

            builder.AddElement("user", User);
            builder.AddElement("business", Business);
            return builder.ToQueryString();
        }