btcpayserver/BTCPayServer/Views/Invoice/Refund.cshtml

@model RefundModel
@{
    ViewData["Title"] = "Refund";
}

<section>
    <div class="row">
        <div class="modal-dialog">
            <div class="modal-content">
                <div class="modal-header">
                    <h4 class="modal-title">@Model.Title</h4>
                </div>
                <div class="modal-body">
                    <form method="post">
                        <div asp-validation-summary="All" class="text-danger"></div>
                        @if (Model.RefundStep == RefundSteps.SelectPaymentMethod)
                        {
                            <div class="form-group">
                                <label asp-for="SelectedPaymentMethod"></label>
                                <select asp-items="Model.AvailablePaymentMethods" asp-for="SelectedPaymentMethod" class="form-control"></select>
                                <span asp-validation-for="SelectedPaymentMethod" class="text-danger"></span>
                            </div>
                            <div class="form-group">
                                <button id="ok" type="submit" class="btn btn-primary btn-block btn-lg">Next</button>
                            </div>
                        }
                        else
                        {
                            <input type="hidden" asp-for="SelectedPaymentMethod" />
                            <input type="hidden" asp-for="CryptoAmountThen" />
                            <input type="hidden" asp-for="FiatAmount" />
                            <input type="hidden" asp-for="CryptoAmountNow" />
                            <div class="form-group">
                                <div class="form-check-inline">
                                    <input id="RateThenText" asp-for="SelectedRefundOption" type="radio" value="RateThen" class="form-check-input" />
                                    <label for="RateThenText" class="form-check-label">@Model.RateThenText</label>
                                </div>
                                <small class="form-text text-muted">The crypto currency price, at the rate the invoice got paid.</small>
                            </div>
                            <div class="form-group">
                                <div class="form-check-inline">
                                    <input id="CurrentRateText" asp-for="SelectedRefundOption" type="radio" value="CurrentRate" class="form-check-input" />
                                    <label for="CurrentRateText" class="form-check-label">@Model.CurrentRateText</label>
                                </div>
                                <small class="form-text text-muted">The crypto currency price, at the current rate.</small>
                            </div>
                            <div class="form-group">
                                <div class="form-check-inline">
                                    <input id="FiatText" asp-for="SelectedRefundOption" type="radio" value="Fiat" class="form-check-input" />
                                    <label for="FiatText" class="form-check-label">@Model.FiatText</label>
                                </div>
                                <small class="form-text text-muted">the invoice currency, at the rate when the refund will be sent.</small>
                            </div>
                            <div class="form-group">
                                <button id="ok" type="submit" class="btn btn-primary btn-block btn-lg">Create refund</button>
                            </div>
                        }
                    </form>
                </div>
            </div>
        </div>
    </div>
</section>