private void btnTransfer_Click(object sender, EventArgs e)
{
    MyTransaction transaction = new MyTransaction(); 
 
    try
    {
        transaction.Transfer(
            Convert.ToInt32(txtID.Text),
            Convert.ToInt32(txtValue.Text),
            "Data Source=localhost;Initial "
            + "Catalog=AtomicTransaction;" 
            + "Integrated Security=True;Pooling=False");
    }
    catch (Exception ex)
    {
        throw ex;
    } 
 
    MessageBox.Show("Finished!");
}