public void writeMsg(string chatname, string msg)
{
MsgHistory m = getMsgHistory(chatname);
m.sb.AppendLine(msg);
m.unread++;
refreshTextWindow();
}
MsgHistory getMsgHistory(string chatname)
{
if (!msgHistorys.ContainsKey(chatname))
{
MsgHistory m = new MsgHistory();
m.sb = new StringBuilder();
m.unread = 0;
msgHistorys.Add(chatname, m);
}
return(msgHistorys[chatname]);
}
void refreshTextWindow()
{
if (listBoxFriend.SelectedIndex != -1)
{
string chatname = ((ChatLink)listBoxFriend.Items[listBoxFriend.SelectedIndex]).getChatname();
textBoxMsgReceive.Text = string.Empty;
MsgHistory m = getMsgHistory(chatname);
textBoxMsgReceive.AppendText(m.sb.ToString());
m.unread = 0;
}
listBoxFriend.Refresh();
}