如何在Xamarin forms中使用SQLite更新数据库中的项

string databasePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "database.db3");
SQLiteConnection connection = new SQLiteConnection(databasePath);

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

connection.CreateTable<Item>();

Item newItem = new Item { Name = "Item 1", Description = "Description 1" };
connection.Insert(newItem);

Item itemToUpdate = connection.Table<Item>().FirstOrDefault(item => item.Name == "Item 1");
if (itemToUpdate != null)
{
    itemToUpdate.Description = "Updated Description";
    connection.Update(itemToUpdate);
}

Item itemToDelete = connection.Table<Item>().FirstOrDefault(item => item.Name == "Item 1");
if (itemToDelete != null)
{
    connection.Delete(itemToDelete);
}