private void VideoWindow_FormClosing(object sender, FormClosingEventArgs e)
{
if (MessageBox.Show("Are you sure to leave the class room", "VCES - Leave confirmation", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
if (tcpClientForStudent.Connected)
{
Data data = new Data();
data.cmd = Command.Leave;
data.userName = lblUser.Text;
byte[] outStream = data.ToByte();
serverStream.Write(outStream, 0, outStream.Length);
serverStream.Flush();
tcpClientForStudent.Close();
udpAudioReceiving.Close();
}
sin = new SignIn();
sin.txtVCESName.Text = lblUser.Text;
this.Dispose();
sin.Show();
sin.txtPassword.Focus();
}
else
{
e.Cancel = true;
}
}
private void btnSignUp_Click(object sender, EventArgs e)
{
if (txtFullName.ForeColor == Color.Gray || txtVCESName.ForeColor == Color.Gray || txtPassword.ForeColor == Color.Gray || txtRepPassword.ForeColor == Color.Gray || txtEmail.ForeColor == Color.Gray || cmbGender.Text.Length == 0 || cmbSubject.Text.Length == 0)
{
MessageBox.Show("Please enter complete information", "VCES - Sign up", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
btnSignUp.Enabled = false;
IPEndPoint dataBaseEP = new IPEndPoint(IPAddress.Parse("169.254.133.4s"), 1350);
TcpClient myTcpClient = new TcpClient();
NetworkStream dataBaseStream;
try
{
myTcpClient.Connect(dataBaseEP);
dataBaseStream = myTcpClient.GetStream();
Data data = new Data();
data.cmd = Command.SignUpStudent;
data.record = txtFullName.Text + "|" + txtVCESName.Text + "|" + txtPassword.Text + "|" + txtRepPassword.Text + "|" + txtEmail.Text + "|" + cmbGender.SelectedItem + "|" + cmbSubject.SelectedItem;
byte[] outStream = data.ToByte();
dataBaseStream.Write(outStream, 0, outStream.Length);
dataBaseStream.Flush();
byte[] inStream = new byte[myTcpClient.ReceiveBufferSize];
dataBaseStream.Read(inStream, 0, inStream.Length);
dataBaseStream.Close();
myTcpClient.Close();
Data receivedData = new Data(inStream);
switch (receivedData.cmd)
{
case Command.SignUpTrue:
if (MessageBox.Show("Congratulation!\nYour new VCES account is created succesfully", "VCES - Create new account", MessageBoxButtons.OK, MessageBoxIcon.Exclamation) == DialogResult.OK)
{
this.Hide();
sin.Show();
sin.txtVCESName.Text = txtVCESName.Text;
sin.txtPassword.Focus();
}
break;
case Command.SignUpFalse:
MessageBox.Show("VCES name is not available\nPlease try different name", "VCES - Sign in", MessageBoxButtons.OK, MessageBoxIcon.Error);
break;
}
}
catch (Exception ex)
{
MessageBox.Show("VCES can't connect with server.\nPlease check your network connection", "VCES - Connection Error Message", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}
finally
{
btnSignUp.Enabled = true;
}
}
private void btnJoinLeave_Click(object sender, EventArgs e)
{
if (btnJoinLeave.Text.Equals("Join"))
{
btnJoinLeave.Enabled = false;
if (!connectToServer())
{
if (MessageBox.Show("Server User is not online right now!", "Server not responding", MessageBoxButtons.RetryCancel, MessageBoxIcon.Error) == DialogResult.Retry)
{
btnJoinLeave_Click(sender, e);
return;
}
else
{
btnJoinLeave.Enabled = true;
return;
}
}
Thread text = new Thread(messageReceived);
text.Start();
Data data = new Data();
data.cmd = Command.Join;
data.userName = lblUser.Text;
byte[] outStream = data.ToByte();
serverStream.Write(outStream, 0, outStream.Length);
serverStream.Flush();
btnJoinLeave.Text = "Leave";
btnJoinLeave.Enabled = true;
btnQuestionRequest.Enabled = true;
btnSend.Enabled = true;
}
else if (btnJoinLeave.Text.Equals("Leave"))
{
if (MessageBox.Show("Are you sure to leave the room", "Leave confirmation", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
if (tcpClientForStudent.Connected)
{
Data data = new Data();
data.cmd = Command.Leave;
data.userName = lblUser.Text;
byte[] outStream = data.ToByte();
serverStream.Write(outStream, 0, outStream.Length);
serverStream.Flush();
tcpClientForStudent.Close();
udpAudioReceiving.Close();
}
sin = new SignIn();
sin.txtVCESName.Text = lblUser.Text;
this.Dispose();
this.Hide();
sin.Show();
sin.txtPassword.Focus();
}
}
}