瀏覽器如何解釋 WebParts 中的 CallBack?

同樣的Server Code，兩家瀏覽器的內容竟然不一樣，來看一下，到底差多少?

Mozilla FireFox

<a 
	onclick="WebForm_DoCallback('ctl00$MainContent$WebPartManager1$VerbWebPart1','RefreshAjax',function(result, controlId){ document.getElementById(controlId).innerHTML = result;},'MainContent_WebPartManager1_VerbWebPart1',null,false);"
	title="Refresh the data2"
	href="javascript:__doPostBack('','')">
	<img title="Refresh the data2" src="/WebResource.axd?d=b0mWHY8S-KhFmq2i0Ng64vjCr7jtn6d1PqDQASYhlciLFSkUesn25v94jo0Hl8v3SSeikIor9zVbWy0TKuelog2&amp;t=634156742020331178"
	alt="Refresh2">
</a>

Internet Explorer

<a title="Refresh the data2"
   href="javascript:void(0)" 
   onclick="document.body.__wpm.Execute(&#39;WebForm_DoCallback(\&#39;ctl00$MainContent$WebPartManager1$VerbWebPart1\&#39;,\&#39;RefreshAjax\&#39;,function(result, controlId){ document.getElementById(controlId).innerHTML = result;},\&#39;MainContent_WebPartManager1_VerbWebPart1\&#39;,null,false);&#39;)" class="menuItem">
   <img src="/WebResource.axd?d=b0mWHY8S-KhFmq2i0Ng64vjCr7jtn6d1PqDQASYhlciLFSkUesn25v94jo0Hl8v3SSeikIor9zVbWy0TKuelog2&amp;t=634156681268366365"
   alt="Refresh the data2"
   width="16"
   height="16"
   style="border-style:none;vertical-align:middle;" />
&nbsp;Refresh2&nbsp;
</a>

在FireFox中，多送了一次PostBack，所以CallBack的結果被洗掉了。

解決方式：在Web Part页面上添加AJAX。