在C#中从xamarin sql数据库加载第一项

using System;
using System.Linq;
using SQLite;
using Xamarin.Forms;

public class Item
{
    [PrimaryKey, AutoIncrement]
    public int Id { get; set; }
    public string Name { get; set; }
}

public class DatabaseContext : SQLiteConnection
{
    public DatabaseContext(string path) : base(path)
    {
    }

    public DbSet<Item> Items { get; set; }
}

public class MainPageViewModel
{
    public Item FirstItem { get; private set; }

    public MainPageViewModel()
    {
        var dbPath = DependencyService.Get<ISQLite>().GetDatabasePath("items.db");
        using (var context = new DatabaseContext(dbPath))
        {
            FirstItem = context.Items.FirstOrDefault();
        }
    }
}