void FormMain_FormClosed(object sender, FormClosedEventArgs e)
{
// Destroy objects
if (mMessageListControlCurrent != null)
{
mMessageListControlCurrent.Dispose();
mMessageListControlCurrent = null;
}
mSemaphores = null;
mChatUserList = null;
mChatMessageList = null;
mChatMessage = null;
if (mMessageListControlCurrent != null)
{
mformUserLists.Dispose();
mformUserLists = null;
}
foreach (Controls.MessageList messageListCurrent in panelMessageList.Controls)
{
panelMessageList.Controls.Remove(messageListCurrent);
messageListCurrent.Dispose();
}
}
static public void AppendReceivedMessage(ref Controls.MessageList messageListControl, Message messageReceived)
{
Controls.MessageItemReceived NewMessageItemReceived = new Controls.MessageItemReceived(messageReceived);
messageListControl.panelMessages.Controls.Add(NewMessageItemReceived);
NewMessageItemReceived.Dock = DockStyle.Top;
}
static public void AppendSentMessage(ref Controls.MessageList messageListControl, Message messageSent)
{
Controls.MessageItemSent NewMessageItemSent = new Controls.MessageItemSent(messageSent);
messageListControl.panelMessages.Controls.Add(NewMessageItemSent);
NewMessageItemSent.Dock = DockStyle.Top;
}
static Controls.MessageList CreateMessageListControl(ref Panel panelMessageList, byte companyID, short userID)
{
Controls.MessageList MessageListCurrent = new Controls.MessageList(companyID, userID);
panelMessageList.Controls.Add(MessageListCurrent);
// Set appearance
MessageListCurrent.BackColor = My.Settings.MessageList_BackColor;
MessageListCurrent.Dock = DockStyle.Fill;
return(MessageListCurrent);
}
static public Controls.MessageList GetMessageListControl(ref Panel panelMessageList, byte companyID, short userID)
{
Controls.MessageList MessageListLastUpdated = null;
// Find if there is a Control created for this User
foreach (Controls.MessageList MessageListCurrent in panelMessageList.Controls)
{
// Save the Last Updated control
if (MessageListLastUpdated == null)
{
MessageListLastUpdated = MessageListCurrent;
}
else if (MessageListCurrent.LastUpdate.CompareTo(MessageListLastUpdated.LastUpdate) > 0)
{
MessageListLastUpdated = MessageListCurrent;
}
if ((MessageListCurrent.CompanyID == companyID) && (MessageListCurrent.UserID == userID))
{
// Control exist
Debug.Print("MessageList Control already exists for current user.");
return(MessageListCurrent);
}
}
// There is not Control created for this User
if (panelMessageList.Controls.Count < My.Settings.MessageList_OnMemoryMaxCount)
{
// Create a new Control to hold the messages for this User
Debug.Print("Create a new MessageList Control for the user.");
return(CreateMessageListControl(ref panelMessageList, companyID, userID));
}
else
{
// Reuse one of the created Controls
if (panelMessageList.Controls.Count > 0)
{
MessageListLastUpdated.CompanyID = companyID;
MessageListLastUpdated.UserID = userID;
MessageListLastUpdated.panelMessages.Controls.Clear();
Debug.Print("Reuse a MessageList Control because the MessageList_OnMemoryMaxCount setting has been reached.");
return(MessageListLastUpdated);
}
else
{
// The "MessageList_OnMemoryMaxCount" setting is apparently equal to 0
return(null);
}
}
}
public bool LoadMessagesForUser(Controls.MessageList messageListControl)
{
byte destinationCompanyID = messageListControl.CompanyID;
short destinationUserID = messageListControl.UserID;
try
{
List <Message> listMessages = (from msgs in mdbContext.Message
where ((msgs.SourceCompanyID == mUser.CompanyID && msgs.SourceUserID == mUser.UserID && msgs.DestinationCompanyID == destinationCompanyID && msgs.DestinationUserID == destinationUserID) || (msgs.SourceCompanyID == destinationCompanyID && msgs.SourceUserID == destinationUserID && msgs.DestinationCompanyID == mUser.CompanyID && msgs.DestinationUserID == mUser.UserID)) && msgs.ReadedDateTime == null
orderby msgs.SentDateTime, msgs.MessageID
select msgs).ToList();
messageListControl.panelMessages.SuspendLayout();
messageListControl.panelMessages.Controls.Clear();
foreach (Message messageCurrent in listMessages)
{
if ((messageCurrent.SourceCompanyID == mUser.CompanyID) && (messageCurrent.SourceUserID == mUser.UserID))
{
MessageListControlFunctions.AppendSentMessage(ref messageListControl, messageCurrent);
}
else
{
MessageListControlFunctions.AppendReceivedMessage(ref messageListControl, messageCurrent);
}
}
messageListControl.panelMessages.ResumeLayout();
messageListControl.LastUpdate = DateTime.Now;
return(true);
}
catch (Exception e)
{
MessageBox.Show(string.Format("Error al leer los Mensajes.{0}{0}Error #{1}: {2}", System.Environment.NewLine, e.HResult, e.Message), My.Application.Info.Title, MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
}
public bool SendMessage(Controls.MessageList messageListControl, string text)
{
try
{
// Add the message to the database, update the destination user semaphore and gets the new message ID (all in the stored procedure)
ObjectParameter outputMessageID = new System.Data.Entity.Core.Objects.ObjectParameter("MessageID", typeof(Int32));
mdbContext.usp_Message_Send(mUser.CompanyID, mUser.UserID, messageListControl.CompanyID, messageListControl.UserID, text, outputMessageID);
int messageID = Convert.ToInt32(outputMessageID.Value);
// Load current message from database
// TODO: Use the message from memory
Message messageSent = mdbContext.Message.Find(messageID);
// Show the sent message in the MessageList control
MessageListControlFunctions.AppendSentMessage(ref messageListControl, messageSent);
return(true);
}
catch (DbEntityValidationException e)
{
MessageBox.Show(string.Format("Error al enviar el Mensaje.{0}{0}Error #{1}: {2}", System.Environment.NewLine, e.HResult, e.Message), My.Application.Info.Title, MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
}
static public void ChatWithUser(TableLayoutPanel panelUserInfoAndMessageListAndMessageNew, ref Controls.MessageList messageListControlCurrent, Label labelUserName, Panel panelMessageList, byte companyID, short userID, string userName, ChatMessageList chatMessageListCurrent)
{
if (panelUserInfoAndMessageListAndMessageNew.Visible == false)
{
panelUserInfoAndMessageListAndMessageNew.Visible = true;
}
if (messageListControlCurrent != null)
{
messageListControlCurrent.Visible = false;
}
labelUserName.Text = userName;
messageListControlCurrent = MessageListControlFunctions.GetMessageListControl(ref panelMessageList, companyID, userID);
messageListControlCurrent.Visible = true;
if (chatMessageListCurrent.LoadMessagesForUser(messageListControlCurrent))
{
}
}
