Working on a mini-banking app, and trying to make a page where the transactions into and out of a bank account are on display. I have a HomePage where I've able to display some data from the bank accounts, but for some reason I can't get any information to display on this page. I have one transaction saved in a JSON file that I want to display. This is the JSON file:

[
  {
    "Description": "Tree fiddy",
    "Amount": 3.5,
    "SourceAccountId": "6c7ac53a-5d65-4d5d-8898-f77283fe7cb6",
    "DestinationAccountId": "737552b8-719b-4194-9d6f-74774e969e03"
  }
]

This is the page I want to display the transaction data in:

Here's my ViewModel for the page:

using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using ReadOnlyBankingSystem.Models;
using ReadOnlyBankingSystem.Services;
using System.Collections.ObjectModel;

namespace Frontend.ViewModels
{
    [QueryProperty(nameof(BankAccount), "BankAccount")]
    public partial class ViewTransactionsViewModel : BaseViewModel
    {
        [ObservableProperty]
        [NotifyPropertyChangedFor(nameof(Transactions))]
        public partial BankAccount BankAccount { get; set; }

        private ObservableCollection _transactions;
        public ObservableCollection Transactions
        {
            //get => ledgerService.FilterTransactionsByAccountId(BankAccount.AccountId).Result;

            get => ledgerService.GetTransactions().Result;
        }

        LedgerService ledgerService;
        public ViewTransactionsViewModel(LedgerService ledgerService)
        {
            this.ledgerService = ledgerService;
            this.BankAccount = new BlankAccount();
            _transactions = new ObservableCollection();
        }
    }
}

Here is my Transaction class:

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Text;
using System.Text.Json;
using System.Text.Json.Serialization;

namespace ReadOnlyBankingSystem.Models
{
    public class Transaction
    {
        [JsonInclude]
        public readonly string Description;
        [JsonInclude]
        public readonly decimal Amount;
        [JsonInclude]
        public readonly Guid SourceAccountId;
        [JsonInclude]
        public readonly Guid DestinationAccountId;

        public Transaction(Guid sourceAccountId, Guid destinationAccountId, decimal amount, string description)
        {
            Amount = amount;
            Description = description;
            SourceAccountId = sourceAccountId;
            DestinationAccountId = destinationAccountId;
        }
    }

    [JsonSerializable(typeof(ObservableCollection))]
    internal sealed partial class TransactionContext : JsonSerializerContext
    {

    } 
}

So, for a bit more context, I tested out this page by displaying a different bit of data from my Customer model and can confirm that that worked, so I figure the issue probably has to do with my Transaction class, but I can't tell what. Also, yes, I know I'm doing some things that aren't idiomatic. This is just a personal project I chose to work on to sharpen my skills and teach myself C# language features; I'll probably get to making DTOs and readonly properties at a later date.