private void button1_Click(object sender, EventArgs e)
{
byte[] data = new byte[208];
int nuid;
try
{
if (OpenPort())
{
if (CardAccess(NUID))
{
if (radioButton1.Checked)
{
serialPort1.Write(ded10, 0, ded10.Length);
}
else if (radioButton2.Checked)
{
serialPort1.Write(ded30, 0, ded30.Length);
}
else if (radioButton3.Checked)
{
serialPort1.Write(ded50, 0, ded50.Length);
}
if (Receive(data))
{
try
{
SqlConnection sqc = ConnectDB.GetConnection();
SqlCommand cmd = new SqlCommand("insert into transactiondata values(@UserId,@Store,@Amount,getdate(),'Deduct');", sqc);
cmd.Parameters.Add("@UserId", comboBox1.SelectedValue);
cmd.Parameters.Add("@Store", comboBox2.Text);
cmd.Parameters.Add("@amount", readBalance().ToString());
int insertCount = cmd.ExecuteNonQuery();
if (insertCount > 0)
{
MessageBox.Show("Purchase completed successfully.");
lblCurrentBalance.Text = readBalance().ToString();
}
else
{
MessageBox.Show("Some Error Occured.");
}
}
catch
{
MessageBox.Show("Some Error Occured.");
}
//txtboxBalance.Text = readBalance().ToString();
//DataGridViewRow row = (DataGridViewRow)dgv1.Rows[0].Clone();
//row.Cells[0].Value = DateTime.Now.ToString();
//nuid = (int)NUID[0] + (int)NUID[1] * 256 + (int)NUID[2] * 65536 + (int)NUID[3] * 16777216;
//row.Cells[1].Value = nuid.ToString("X");
//row.Cells[2].Value = txtboxBalance.Text;
//dgv1.Rows.Add(row);
}
else
{
MessageBox.Show("Operation error! Please try again.");
}
}
else
{
MessageBox.Show("Card read error.");
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
serialPort1.Close();
}
