在程式殿堂不斷學習的小菜鳥

1 <asp:UpdateProgress ID="UpdateProgress1" runat="server" AssociatedUpdatePanelID="UpdatePanel1">
2                 <ProgressTemplate>
3                     <asp:Panel ID="Panel3" runat="server" CssClass="PBF">
4                         <img alt="Loading" src="../image/load.gif" /></asp:Panel>
5                 </ProgressTemplate>
6             </asp:UpdateProgress>

01
02 .PBF
03 {
04     position:fixed;  
05     top:0px;  
06     bottom:0px;  
07     left:0px;
08     right:0px;
09     overflow:hidden;  
10     padding:0;  
11     margin:0;  
12     background-color:white;  
13     filter:alpha(opacity=50);  
14     opacity:0.5;  
15     z-index:1000;  
16      
17     }