// This is called when we want to raise the StatusChanged event
public static void OnStatusChanged(StatusChangedEventArgs e)
{
StatusChangedEventHandler statusHandler = StatusChanged;
if (statusHandler != null)
{
// Invoke the delegate
statusHandler(null, e);
}
}
// Send messages from one user to all the others
public static void SendMessage(string From, string Message)
{
StreamWriter swSenderSender;
// First of all, show in our application who says what
e = new StatusChangedEventArgs(From + ": " + Message);
OnStatusChanged(e);
// Create an array of TCP clients, the size of the number of users we have
TcpClient[] tcpClients = new TcpClient[ChatServer.htUsers.Count];
// Copy the TcpClient objects into the array
ChatServer.htUsers.Values.CopyTo(tcpClients, 0);
// Loop through the list of TCP clients
for (int i = 0; i < tcpClients.Length; i++)
{
// Try sending a message to each
try
{
// If the message is blank or the connection is null, break out
if (Message.Trim() == "" || tcpClients[i] == null)
{
continue;
}
// Send the message to the current user in the loop
swSenderSender = new StreamWriter(tcpClients[i].GetStream());
swSenderSender.WriteLine(From + ": " + Message);
swSenderSender.Flush();
swSenderSender = null;
}
catch // If there was a problem, the user is not there anymore, remove him
{
RemoveUser(tcpClients[i]);
}
}
}
public void mainServer_StatusChanged(object sender, StatusChangedEventArgs e)
{
this.Invoke(new UpdateStatusCallback(this.UpdateStatus), new object[] { e.EventMessage });
}