我现在能想到的在 3 秒延迟后回发的唯一方法就是这样。
setInterval("__doPostBack('UpdatePanel1', '' )", 3000);
我遇到的问题是它每 3 秒回发一次。有没有更好的方法来做到这一点或清除间隔的方法?我正在使用一个 asp updatepanel 控件。
这是我完整的 javascript 代码,让您了解我正在尝试做的事情:
var delayb4scroll = 1000 //Specify initial delay before marquee starts to scroll on page (2000=2 seconds)
var marqueespeed = 2 //Specify marquee scroll speed (larger is faster 1-10)
var pauseAtBottom = 3000 //Pause at the end of the scroll for this many seconds (3000 = 3 seconds)
var copyspeed = marqueespeed
var actualheight = ''
var boolRunOnce = ''
function pageLoad() {
initializemarquee();
}
function scrollmarquee() {
if (parseInt(cross_marquee.style.top) - 975 > (actualheight * (-1) + 8)) //if scroller hasn't reached the end of its height
cross_marquee.style.top = parseInt(cross_marquee.style.top) - copyspeed + "px" //move scroller upwards
else { //else, scrollbar has reached the bottom, display for 3 seconds then postback
setInterval("__doPostBack('UpdatePanel1', '' )", 3000);
}
}
function initializemarquee() {
cross_marquee = document.getElementById("vmarquee")
cross_marquee.style.top = 0
marqueeheight = document.getElementById("marqueecontainer").offsetHeight
actualheight = cross_marquee.offsetHeight //height of marquee content (much of which is hidden from view)
setTimeout('lefttime=setInterval("scrollmarquee()",30)', delayb4scroll)
}