private void SendOneDatagram()
{
int maxLength = int.Parse(cb_MaxDatagramSize.Text) * 10240;
Random rnd = new Random();
int datagramLength = rnd.Next(1, maxLength);
//就这里，弄个类的序列化。
DbTools db = new DbTools();
ModelMember m = new ModelMember();
m.email = "赵钦@sina.com";
m.hdinfo = HardWare.getHardCode();
m.logintime = DateTime.Now;
string datagramText = db.ClasstoString(m, "VCDS");
datagramText = "<" + datagramText + ">";
//if (ck_ErrorDatagram.Checked && datagramLength < maxLength * 0.20) // 产生一个无 > 的包
//{
// datagramText = "<" + tb_ClientName.Text.Trim() + ",".PadRight(datagramLength, 'a');
//} else if (ck_ErrorDatagram.Checked && datagramLength > maxLength * 0.80) // 产生一个无 < 的包
//{
// datagramText = tb_ClientName.Text.Trim() + ",".PadRight(datagramLength, 'a') + ">";
//} else // 正常包
//{
// string header = "<" + tb_ClientName.Text.Trim() + ",";
// string tailer = ",".PadRight(datagramLength, 'a') + ">";
// datagramText = header + (header.Length + tailer.Length + 10).ToString("0000000000") + tailer; // 第二个字节是长度
//}
byte[] datagram = Encoding.ASCII.GetBytes(datagramText);
try {
m_socketClient.Client.Send(datagram);
this.RefreshSendCount();
this.AddInfo("send text len = " + datagramText.Length.ToString());
if (ck_AsyncReceive.Checked) // 异步接收回答
{
m_socketClient.Client.BeginReceive(m_receiveBuffer, 0, m_receiveBuffer.Length, SocketFlags.None, this.EndReceiveDatagram, this);
}
else
{
this.Receive();
}
} catch (Exception err) {
this.AddInfo("send exception: " + err.Message);
this.CloseClientSocket();
}
}