private void btnSendTrade_Click(object sender, EventArgs e)
{
NET_ITS_TRANS_INFO trade = new NET_ITS_TRANS_INFO();
trade.sStartTime = new byte[20];
trade.sEndTime = new byte[20];
//int a = Marshal.SizeOf(trade);
trade.nPumpID = (byte)comboNozzle.SelectedIndex;
trade.nOilType = 92;
trade.fTradeLitre = 3.2f;
trade.fTradeMoney = 35.0f;
trade.fTradePrice = 6.80f;
trade.fStartRead = 1000.1f;
trade.fEndRead = 1003.3f;
string time = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
byte[] byTime = System.Text.Encoding.Default.GetBytes(time);
Buffer.BlockCopy(byTime, 0, trade.sStartTime, 0, byTime.Length);
Buffer.BlockCopy(byTime, 0, trade.sEndTime, 0, byTime.Length);
HCNetSDK.NET_DVR_SendTrans(trade);
}