//
// METHOD : MainWindow_Close()
// DESCRIPTION : This method shuts down all the running functions and threads when the
// user exits the program
// PARAMETERS : object sender : object that called the funtion
// CancelEventArgs e : any arguments if an event is canceled
// RETURNS : void
//
private void Close_Window(object sender, System.ComponentModel.CancelEventArgs e)
{
// try catch to catch and exceptions thrown
try
{
Byte[] data = System.Text.Encoding.ASCII.GetBytes("--A Client Has Disconnected--");
stream.Write(data, 0, data.Length);
// stop the client from listening to server
keepListening = false;
// close Stream and client
stream.Close();
client.Close();
}
catch (SocketException Se)
{
MessageBox.Show(Se.ToString());
}
catch (ArgumentNullException ARGe)
{
MessageBox.Show(ARGe.ToString());
}
}
// FUNCTION : Send_Button_Click
// DESCRIPTION : When the send button is clicked if there is text in the text box
// translate the message and submit it to the chat
// PARAMETERS : Object : o
// RETURNS : NONE
private void Send_Button_Click(object sender, RoutedEventArgs e)
{
if ((messageText.Text.Length != 0) && (messageText.Text != " "))
{
string recievedMessage = messageText.Text;
// try catch to catch any exceptions thrown
try
{
// translate the message into ASCII and then store into array
Byte[] data = System.Text.Encoding.ASCII.GetBytes(recievedMessage);
// if stream isn't null send the message to the server
if (stream == null)
{
MessageBox.Show("Error: Server Offline");
}
else
{
stream.Write(data, 0, data.Length);
}
// submit the message to the chatBox
SubmitToChat(recievedMessage, "You");
}
catch (SocketException Se)
{
MessageBox.Show(Se.ToString());
}
catch (ArgumentNullException ARGe)
{
MessageBox.Show(ARGe.ToString());
}
// reset message box text
messageText.Text = "";
}
}
