作者:DotSharp

    我們在CSDN論壇上的左上角能夠看到導航欄的功能,下面就模擬該功能,利用JS在asp.net中作一個簡單的無刷新的左導航欄隱藏功能.

    首先,作一個框架頁,我們取名 main.aspx
<!-- main.aspx 主要代碼 -->
<script>
document.write("<frameset rows='54,28,*,19' frameborder='NO' border='0' framespacing='0'>");
document.write("<frame src='title.aspx' name='topFrame' scrolling='NO' noresize>");
document.write("<frame src='bar.aspx' name='MainNaviFrame' scrolling='NO'>");
<!-- left.aspx是導航頁 ,menuswitch.aspx是交互的按鈕頁 -->
document.write("<frameset name='forum' cols='150,8,*' frameborder='NO' border='0' framespacing='0'>");
document.write("<frame src='left.aspx' name='LeftFrame' scrolling='auto'>");
document.write("<frame src='menuswitch.aspx' name='SwichFrame' scrolling='No'>");

document.write("<frameset rows='100%,*' frameborder='NO' border='0' framespacing='0'>");
document.write("<frame src='' name='MainFrame' scrolling='no'>");
document.write("</frameset></frameset>");
document.write("<frame src='bottom.aspx' name='BottomFrame' scrolling='No'></frameset>");
</script>

<!-- menuswitch.js 主要代碼-->
var leftwin = true;

function changeWin()
{
 if(leftwin == true)
 {
  parent.forum.cols = "0,8,*";
  parent.SwichFrame.menuSwitch.innerHTML = "<a onclick='changeWin();' style='cursor:hand;'><img src='http://www.okasp.com/techinfo/images/ArrowOpen.gif' border='0'></a>";
  leftwin = false;
 }
 else
 {
  parent.forum.cols = "150,8,*";
  parent.SwichFrame.menuSwitch.innerHTML = "<a onclick='changeWin();' style='cursor:hand;'><img src='http://www.okasp.com/techinfo/http://www.okasp.com/techinfo/images/ArrowClose.gif' border='0'></a>";
  leftwin = true;
 }
}

<!-- menuswitch.aspx 主要代碼 -->
<table height="100%" cellSpacing="0" cellPadding="0" width="8" background="images/MiddleBg1.gif"
 border="0">
 <tr>
  <td onclick="changeWin();" style="cursor:hand;" id="menuSwitch" align="center">
   <img id="Image1" src="http://www.okasp.com/techinfo/http://www.okasp.com/techinfo/images/ArrowClose.gif" border="0" />
  </td>
 </tr>
</table>

以上功能并不完善,只能起到拋磚引玉的作用,歡迎網友與我交流.