var list = new BindingList<PatcherDB>(patches);

    foreach (DataGridViewRow item in dataGridView.Rows)
    {
        //list.Add(item.Cells[1].Value.ToString());
        list.Add(new PatcherDB() {Version = item.Cells[0].Value.ToString(), Release = item.Cells[1].Value.ToString(), Path = item.Cells[2].Value.ToString()});
        MessageBox.Show($"Version = {item.Cells[0].Value.ToString()}, Release = {item.Cells[1].Value.ToString()}, Path = {item.Cells[2].Value.ToString()}");
    }

    var data = JsonConvert.SerializeObject(list);