private void OnConnect(IAsyncResult ar)
{
try
{
clientSocket.EndConnect(ar);
//We are connected so we login into the server
Data msgToSend = new Data ();
msgToSend.cmdCommand = Command.Login;
msgToSend.strName = txtName.Text;
msgToSend.strMessage = null;
string message = "test";
byte[] b = msgToSend.ToByte ();
//byte[] b = Convert.ToByte(message);
List<byte> result = new List<byte>();
result.AddRange(BitConverter.GetBytes(message.Length));
byte[] c = result.ToArray();
//Send the message to the server
clientSocket.BeginSend(b, 0, b.Length, SocketFlags.None, new AsyncCallback(OnSend), null);
//clientSocket.BeginSend(c, 0, c.Length, SocketFlags.None, new AsyncCallback(OnSend), null);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "ChatClient", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
//Broadcast the message typed by the user to everyone
private void btnSend_Click(object sender, EventArgs e)
{
try
{
//Fill the info for the message to be send
Data msgToSend = new Data();
msgToSend.strName = strName;
msgToSend.strMessage = txtMessage.Text;
msgToSend.cmdCommand = Command.Message;
byte [] byteData = msgToSend.ToByte();
//Send it to the server
clientSocket.BeginSend (byteData, 0, byteData.Length, SocketFlags.None, new AsyncCallback(OnSend), null);
txtMessage.Text = null;
}
catch (Exception)
{
MessageBox.Show("Unable to send message to the server.", "ChatClient: " + strName, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void SGSClient_FormClosing(object sender, FormClosingEventArgs e)
{
if (MessageBox.Show("Are you sure you want to leave the chat room?", "SGSclient: " + strName,
MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation) == DialogResult.No)
{
e.Cancel = true;
return;
}
try
{
//Send a message to logout of the server
Data msgToSend = new Data ();
msgToSend.cmdCommand = Command.Logout;
msgToSend.strName = strName;
msgToSend.strMessage = null;
byte[] b = msgToSend.ToByte ();
clientSocket.Send(b, 0, b.Length, SocketFlags.None);
clientSocket.Close();
}
catch (ObjectDisposedException)
{ }
catch (Exception ex)
{
MessageBox.Show(ex.Message, "ChatClient: " + strName, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void Form1_Load(object sender, EventArgs e)
{
this.Text = "ChatClient: " + strName;
//The user has logged into the system so we now request the server to send
//the names of all users who are in the chat room
Data msgToSend = new Data ();
msgToSend.cmdCommand = Command.List;
msgToSend.strName = strName;
msgToSend.strMessage = null;
byteData = msgToSend.ToByte();
clientSocket.BeginSend(byteData, 0, byteData.Length, SocketFlags.None, new AsyncCallback(OnSend), null);
byteData = new byte[1024];
//Start listening to the data asynchronously
clientSocket.BeginReceive(byteData,
0,
byteData.Length,
SocketFlags.None,
new AsyncCallback(OnReceive),
null);
}