Assembling - Teh Forum

<body> <div id="header"> <span class="left"> <span class="back"><a href="lthread_list.php?webtag=DEFAULT"><span class="image mobile_back" title="Back"></span></a></span> <span class="image mobile_logo" title="Beehive Forum Logo"></span> </span> <ul> <li> <a class="reply_all" href="lpost.php?webtag=DEFAULT&reply_to=33530.0&return_msg=33530.6"> <span class="image mobile_reply_all"></span><span class="text">Reply to All</span> </a> </li> <li> <a class="navigation" href="#"> <span class="image mobile_navigation"></span><span class="text">Show messages</span> </a> </li> <li> <a class="main" href="#"><span class="image mobile_menu" title="Menu"></span> </a> </li> </ul> </div> <div class="menu main"> <ul> <li><a href="lthread_list.php?webtag=DEFAULT">Messages</a></li> <li><a href="lpm.php?webtag=DEFAULT">Inbox</a></li> <li><a href="lsearch.php?webtag=DEFAULT">Search</a></li> <li><a href="llogon.php?webtag=DEFAULT">Login</a></li> </ul> </div> <div class="menu navigation"><a href="lmessages.php?webtag=DEFAULT&msg=33530.1">1–8</a></div> <div id="page_content"> <h3 class="thread_title"><a href="index.php?webtag=DEFAULT&amp;msg=33530.6">Assembling</a> </h3> <div id="messages" data-navigation="33530_6_8_10"> <a name="a33530_6"></a><div class="message" id="message_33530_6"> <div class="message_header"> <div class="message_from"> From: THERE IS NO GOD BUT (RENDLE)<span class="message_time">30 Nov 2007 22:54</span> <div class="clearer"></div> </div><div class="message_to">To: Rich <span><span class="image post_read" title="Read: 30 Nov 2007 23:39"></span></span> <span class="message_count">6 of 8</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=33530.6">33530.6</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=33530.5">33530.5</a></div> <div class="message_body"> <p>Cool. Apparently a lot of the base classes use emitted code for dynamic operations, like data binding and such.</p> <p> </p> <p>Do you know whether lots of event handlers are a bad thing? Like, if I've got business objects with 20 properties each, would it be better to have a PropertyChanging event for each property, or one for the entire business object and the handling method does conditionals? Obviously the events would be exposed by the containing collections rather than the individual business objects, cos some of them can have hundreds of records and you don't want twenty thousand event handlers. I'm leaning towards separate events for each property.</p> <p> </p> <p>Got a huge performance increase today by sticking individual data access routines in ThreadPool.QueueUserWorkItem calls. Be even better when ParallelFX gets released...</p> </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=33530.6&return_msg=33530.6" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="33530.6"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a33530_7"></a><div class="message" id="message_33530_7"> <div class="message_header"> <div class="message_from"> From: Rich<span class="message_time">30 Nov 2007 23:48</span> <div class="clearer"></div> </div><div class="message_to">To: THERE IS NO GOD BUT (RENDLE) <span><span class="image post_read" title="Read: 1 Dec 2007 20:15"></span></span> <span class="message_count">7 of 8</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=33530.7">33530.7</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=33530.6#a33530_6" target="_self">33530.6</a></div> <div class="message_body"> <p>Odd you should mention that about the events. During our tests with the emitted code, we noticed that some events were being thrown about 25 million times, something we've not really done any analysis on before. Even so, with all those events flying, we saw that 50 sec reduction on a 52 second operation.</p> <p> </p> <p>I'll let you know more if I can, once we've finished testing.</p> </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=33530.7&return_msg=33530.6" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="33530.7"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a33530_8"></a><div class="message" id="message_33530_8"> <div class="message_header"> <div class="message_from"> From: THERE IS NO GOD BUT (RENDLE)<span class="message_time"> 1 Dec 2007 20:17</span> <div class="clearer"></div> </div><div class="message_to">To: Rich <span><span class="image post_read" title="Read: 2 Dec 2007 00:18"></span></span> <span class="message_count">8 of 8</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=33530.8">33530.8</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=33530.6#a33530_7" target="_self">33530.7</a></div> <div class="message_body"> Are you using System.Data.DataSet? The ColumnChanged and RowChanged events on those seem to fire lots. If they're your own objects and events, try using get/set accessors on the event to prevent the same handler being added multiple times. </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=33530.8&return_msg=33530.6" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="33530.8"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div></div> </div> </body>