/// <summary>
/// LogOff
/// Logs off the user from the service
/// and updates the GUI locally
/// </summary>
private void LogOff()
{
// Call the Service to Log Off
DuplexChannelFactory <IOneToOneChatService> cf = new DuplexChannelFactory <IOneToOneChatService>(this, "NetTcpBinding_IOneToOneChatService");
cf.Open();
IOneToOneChatService proxy = cf.CreateChannel();
if (proxy != null)
{
try
{
proxy.LeaveServer(LoggedInUser.Username);
// Disable the GUI for Chat
UpdateChatGUI(false);
} // end of try
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message, System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Namespace + "." + System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Name + "." + System.Reflection.MethodBase.GetCurrentMethod().Name);
MessageBox.Show("Error logging off user: "******"Cannot Create a Channel to a Proxy. Check Your Configuration Settings.", "Proxy", MessageBoxButtons.OK);
} // end of else
} // end of method
} // end of method
private void UpdateOnlineUsersListboxUI()
{
// If User is Not Logged In
if (LoggedInUser.Username == null)
{
MessageBox.Show("Please Login First !");
return;
}
// Clear the List Box
lbOnlineUsers.Items.Clear();
// Temporary variable to hold the list of chat messages
List <string> receivedOnlineUsers;
// Retrieve the New Messages
DuplexChannelFactory <IOneToOneChatService> cf = new DuplexChannelFactory <IOneToOneChatService>(this, "NetTcpBinding_IOneToOneChatService");
cf.Open();
IOneToOneChatService proxy = cf.CreateChannel();
if (proxy != null)
{
try
{
// retrieve the online username from the server
receivedOnlineUsers = proxy.GetAllOnlineUsers(LoggedInUser.Username);
// Update the UI
foreach (string item in receivedOnlineUsers)
{
lbOnlineUsers.Items.Add(item);
}
} // end of try
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message, System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Namespace + "." + System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Name + "." + System.Reflection.MethodBase.GetCurrentMethod().Name);
MessageBox.Show(ex.Message);
}
} // end of if
else
{
// Cannot Connect to Server
MessageBox.Show("Cannot Create a Channel to a Proxy. Check Your Configuration Settings.", "Proxy", MessageBoxButtons.OK);
} // end of else
} // end of method
/// <summary>
/// btnSendMessage_Click
/// Implements the Send Message Button Click
/// </summary>
/// <param name="sender">not used</param>
/// <param name="e">not used</param>
private void btnSendMessage_Click(object sender, EventArgs e)
{
// Validate User LoggedIn
if (txtMyMessage.Enabled == false || LoggedInUser.Username == null)
{
// User needs to login!
MessageBox.Show("Please login before sending a message.", "Login Required", MessageBoxButtons.OK);
}
else
{
// Send Message to Service
// Retrieve the New Messages
using (DuplexChannelFactory <IOneToOneChatService> cf = new DuplexChannelFactory <IOneToOneChatService>(this, "NetTcpBinding_IOneToOneChatService"))
{
cf.Open();
IOneToOneChatService proxy = cf.CreateChannel();
if (proxy != null)
{
try
{
// It is ok to send empty messages, I don't care lol
proxy.SendMessageToParticularUser(LoggedInUser.Username, LoggedInUser.receiverName, txtMyMessage.Text);
} // end of try
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message, System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Namespace + "." + System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Name + "." + System.Reflection.MethodBase.GetCurrentMethod().Name);
MessageBox.Show(ex.Message);
} // end of catch
} // end of if
else
{
// Cannot Connect to Server
MessageBox.Show("Cannot Create a Channel to a Proxy. Check Your Configuration Settings.", "Proxy", MessageBoxButtons.OK);
} // end of else
} // end of using
} // end of if
} // end of method
private void JoinServer(string username)
{
// Check State on Service
// Make a ChannelFactory Proxy to the Service
DuplexChannelFactory <IOneToOneChatService> cf = new DuplexChannelFactory <IOneToOneChatService>(this, "NetTcpBinding_IOneToOneChatService");
cf.Open();
IOneToOneChatService proxy = cf.CreateChannel();
if (proxy != null)
{
try
{
proxy.AddMeToServer(username);
Console.WriteLine("Inside join server");
// Disable the GUI for Chat
UpdateChatGUI(true);
} // end of try
catch (FaultException <DuplicateUserFault> ex)
{
System.Diagnostics.Debug.WriteLine(ex.Detail.Reason, System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Namespace + "." + System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Name + "." + System.Reflection.MethodBase.GetCurrentMethod().Name);
MessageBox.Show(ex.Detail.Reason);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message, System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Namespace + "." + System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Name + "." + System.Reflection.MethodBase.GetCurrentMethod().Name);
MessageBox.Show("Error logging off user: "******"Cannot Create a Channel to a Proxy. Check Your Configuration Settings.", "Proxy", MessageBoxButtons.OK);
} // end of else
}
} // end of method
/// <summary>
/// GetMessageHistory
/// Gets a list of ChatMessages to update
/// the UI list box
/// </summary>
private void UpdateMessageHistoryUI(bool multipleTimes)
{
// If User is Not Logged In
if (LoggedInUser.Username == null)
{
MessageBox.Show("Please Login First !");
return;
}
// Temporary variable to hold the list of chat messages
List <SingleChatMessage> historyChat;
// Retrieve the New Messages
DuplexChannelFactory <IOneToOneChatService> cf = new DuplexChannelFactory <IOneToOneChatService>(this, "NetTcpBinding_IOneToOneChatService");
cf.Open();
IOneToOneChatService proxy = cf.CreateChannel();
if (proxy != null)
{
try
{
IsChatHistoryLoaded = true;
if (LoggedInUser.receiverName == LoggedInUser.previousReceiver || multipleTimes)
{
if (LoggedInUser.receiverName == null)
{
lstChatMessages.Items.Clear();
lstChatMessages.Items.Add("NO MESSAGE RECORDS");
}
}
else
{
lstChatMessages.Items.Clear();
// retrieve the chat history
historyChat = proxy.GetMessageHistory(LoggedInUser.Username, LoggedInUser.receiverName);
if (historyChat.Count == 0)
{
lstChatMessages.Items.Add("NO MESSAGE RECORDS");
return;
}
foreach (SingleChatMessage msg in historyChat)
{
lstChatMessages.Items.Add(msg);
Console.WriteLine("MSG : " + msg);
}
Console.WriteLine("Sender : " + LoggedInUser.Username + " Receiver : " + LoggedInUser.receiverName);
}
} // end of try
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message, System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Namespace + "." + System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Name + "." + System.Reflection.MethodBase.GetCurrentMethod().Name);
MessageBox.Show(ex.Message);
}
} // end of if
else
{
// Cannot Connect to Server
MessageBox.Show("Cannot Create a Channel to a Proxy. Check Your Configuration Settings.", "Proxy", MessageBoxButtons.OK);
} // end of else
} // end of method
