How to fix "Sequence contains no matching element" in Sales/Index.cshtml

[freeburma]

Hi there,

If some one get "Sequence contains no matching element" in Sales/Index.cshtml, you should add the following code. This happened because when the buyer cancelled the payment. The error said "The index you requested was not found in the array" in plain English.
This will happened at line 40:

To Fix this: "Add the IF STATEMENT "if (payment.transactions[0].related_resources.Count != 0)"as below or cut line 33-56 and paste with this code snipped.

@foreach (var payment in Model.payments)
{
// Checking for the completed transitions
if (payment.transactions[0].related_resources.Count != 0)
{

@payment.id
@payment.create_time
@payment.state
$@(decimal.Parse(payment.transactions.First().amount.total).ToString("0.00"))

                                <td class="text-right">@(payment.transactions.FirstOrDefault().related_resources.FirstOrDefault(x => x.sale != null).sale.state)</td>

                                <td class="text-right">

                                    <!-- Checking the refunded sales. If it was refunded, the button will disable. -->
                                    @if (payment.transactions.FirstOrDefault().related_resources.FirstOrDefault(x => x.sale != null).sale.state == "refunded")
                                    {
                                    <!-- Button was disabled. -->
                                        <button type="button" class="btn btn-success" disabled>Refunded</button>
                                    }
                                    else
                                    {
                                        using (Html.BeginForm("Refund", "Sales", FormMethod.Post))
                                        {
                                        <!-- Looking for Sales ID -->
                                            @Html.Hidden("saleId", payment.transactions.First().related_resources.First(x => x.sale != null).sale.id)
                                            <button type="submit" class="btn btn-warning">Refund</button>
                                        }
                                    }
                                </td>
                            </tr>
                        }
                    }

Hope, this helps to someone.