怎样实现ASP读出数据库的栏目，下拉式菜单显示？

qingang1983 2005-12-18 02:56:29

像：http://article.xy998.com/
上面的栏目分类那样，弹出显示子栏目？

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xtuwz 2005-12-19

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那你就先讀數據庫,利用DIV的ONMOUSEOVER來顯示,注意子菜單先設成不可見,具體JAVASCRIPT看上面,其實不難

qingang1983 2005-12-19

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在那嵌？

李睿_Lee 2005-12-18

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从Access读出后嵌进去就行了啊！

qingang1983 2005-12-18

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但是我那栏目名称是从ACCESS上读出的哦

lonaerd 2005-12-18

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代码现成的你都不知道抄？

<script language="JavaScript" type="text/JavaScript">
//下拉菜单相关代码
var h;
var w;
var l;
var t;
var topMar = 1;
var leftMar = -2;
var space = 1;
var isvisible;
var MENU_SHADOW_COLOR='#999999';//定义下拉菜单阴影色
var global = window.document
global.fo_currentMenu = null
global.fo_shadows = new Array

function HideMenu()
{
var mX;
var mY;
var vDiv;
var mDiv;
if (isvisible == true)
{
vDiv = document.all("menuDiv");
mX = window.event.clientX + document.body.scrollLeft;
mY = window.event.clientY + document.body.scrollTop;
if ((mX < parseInt(vDiv.style.left)) || (mX > parseInt(vDiv.style.left)+vDiv.offsetWidth) || (mY < parseInt(vDiv.style.top)-h) || (mY > parseInt(vDiv.style.top)+vDiv.offsetHeight)){
vDiv.style.visibility = "hidden";
isvisible = false;
}
}
}

function ShowMenu(vMnuCode,tWidth) {
vSrc = window.event.srcElement;
vMnuCode = "<table id='submenu' cellspacing=1 cellpadding=3 style='width:"+tWidth+"' class=menu onmouseout='HideMenu()'><tr height=23><td nowrap align=left class=MenuBody>" + vMnuCode + "</td></tr></table>";

h = vSrc.offsetHeight;
w = vSrc.offsetWidth;
l = vSrc.offsetLeft + leftMar+4;
t = vSrc.offsetTop + topMar + h + space-2;
vParent = vSrc.offsetParent;
while (vParent.tagName.toUpperCase() != "BODY")
{
l += vParent.offsetLeft;
t += vParent.offsetTop;
vParent = vParent.offsetParent;
}

menuDiv.innerHTML = vMnuCode;
menuDiv.style.top = t;
menuDiv.style.left = l;
menuDiv.style.visibility = "visible";
isvisible = true;
makeRectangularDropShadow(submenu, MENU_SHADOW_COLOR, 4)
}

function makeRectangularDropShadow(el, color, size)
{
var i;
for (i=size; i>0; i--)
{
var rect = document.createElement('div');
var rs = rect.style
rs.position = 'absolute';
rs.left = (el.style.posLeft + i) + 'px';
rs.top = (el.style.posTop + i) + 'px';
rs.width = el.offsetWidth + 'px';
rs.height = el.offsetHeight + 'px';
rs.zIndex = el.style.zIndex - i;
rs.backgroundColor = color;
var opacity = 1 - i / (i + 1);
rs.filter = 'alpha(opacity=' + (100 * opacity) + ')';
el.insertAdjacentElement('afterEnd', rect);
global.fo_shadows[global.fo_shadows.length] = rect;
}
}

var menu4="<img src='images/tree_line1.gif' width='17' height='16' valign='abvmiddle'><img src='Images/tree_folder3.gif' width='15' height='15' valign='abvmiddle'><a style=font-size:9pt;line-height:14pt; href='ShowClass2.asp?ClassID=17'>Window XP</a><br><img src='images/tree_line1.gif' width='17' height='16' valign='abvmiddle'><img src='Images/tree_folder3.gif' width='15' height='15' valign='abvmiddle'><a style=font-size:9pt;line-height:14pt; href='ShowClass2.asp?ClassID=18'>Linux</a><br><img src='images/tree_line2.gif' width='17' height='16' valign='abvmiddle'><img src='Images/tree_folder3.gif' width='15' height='15' valign='abvmiddle'><a style=font-size:9pt;line-height:14pt; href='ShowClass2.asp?ClassID=19'>Window NT</a><br>";

</script>

<html>

<a href='ShowClass2.asp?ClassID=16' onMouseOver='ShowMenu(menu4,100)'> 操作系统 </a>

</html>