// gửi gói tin
public void Send(string ms)
{
try
{
// gửi dữ liệu ở dạng nhị phân (byte)
myUser.setMessage(ms);
NetworkStream netStream = clt.GetStream();
byte[] data = myUser.GetBytes();
int size = myUser.size;
byte[] packsize = new byte[2];
// convert byte -> string
packsize = BitConverter.GetBytes(size);
netStream.Write(packsize, 0, 2);
netStream.Write(data, 0, size);
netStream.Flush();
}
catch
{
MessageBox.Show("Lỗi kết nối", "Lỗi!",
MessageBoxButtons.OK, MessageBoxIcon.Error);
Application.Exit();
}
}
private void loginBtn_Click(object sender, EventArgs e)
{
string name = usNameTxt.Text;
string pass = passTxt.Text;
if (name != "" && pass != "")
{
BllClient userSending = new BllClient(name, pass);
userSending.setMessage("dang_nhap-" + keyDangNhap);
myUser = userSending;
myUser.receiveDir = 1;
sendUserObject(userSending);
}
else
{
MessageBox.Show("User name or Password are error", "Error",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
public void sendMessage(string ms)
{
try
{
myUser.setMessage(ms);
NetworkStream netStream = clt.GetStream();
byte[] data = myUser.GetBytes();
int size = myUser.size;
byte[] packsize = new byte[2];
packsize = BitConverter.GetBytes(size);
netStream.Write(packsize, 0, 2);
netStream.Write(data, 0, size);
netStream.Flush();
}
catch
{
MessageBox.Show("Error login", "Error",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}