How to Update row in sqlite.net pcl in windows 10 C#?

I have ID of Row then I will update other values.

I don't know how to update my values! My Table:

 class MyTable
{
    [PrimaryKey, AutoIncrement]
    public int Id { get; set; }
    public string Date { get; set; }
    public string Volumes { get; set; }
    public string Price { get; set; }
}

other information:

 string path;
    SQLite.Net.SQLiteConnection conn;

    public updatepage()
    {
        this.InitializeComponent();
        path = Path.Combine(Windows.Storage.ApplicationData.Current.LocalFolder.Path, "ccdb.sqlite");

        conn = new SQLite.Net.SQLiteConnection(new SQLite.Net.Platform.WinRT.SQLitePlatformWinRT(), path);

        conn.CreateTable<MyTable>();
    }