//1 . Response.Write("<script>document.getElementById('adds').style.display = 'block';</script>");
//2. ScriptManager.RegisterStartupScript(this, this.GetType(), "", "document.getElementById('adds').style.display = 'block';location='SideDish.aspx'", true);
1和2要输入的js怎么都执行不了啊，目的让页面的一个层显示，它默认的是隐藏的，坐等了，先谢谢大家
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首先确定document.getElementById('adds'是否为空
前台写个js 用alert弹出看看
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可以是js脚本生成的位置靠前，执行js语句时还没出现这个adds的div。
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第一种是太靠前，页面DOM还没加载，你那句就写上执行了，啥也找不到
第二种倒是应该可以的 document.getElementById('adds'）有东西吗
再有location能直接这么用吗
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这个为什么要用c#来输出呢？直接在aspx页面添加js代码就ok了呀
还有location跳转的用法是
location.href=url 你少了个href。。。
你直接在你要操作的dom下面写
- JScript code
<script type="text/javascript"> document.getElementById('adds').style.display = 'block'; location.href='SideDish.aspx'</script>
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- HTML code
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>一个简单的网页弹出层</title><style>* {margin:0;}body {font-size:9pt;}#container div{margin-top:6px;}#select_city h3{float:left;}#main_city,#all_province {clear:both;}#main_city div,#all_province div{width:588px;clear:left;}#main_city h4,#all_province h4{float:left;display:inline;font-size:16px;}#main_city div span,#all_province div span{margin:0 9px;cursor:pointer;font-size:14px;}#float_lay{width:220px;height:122px;border:1px #787878 solid;position:absolute;background:#fff;z-index:999;display:none;}</style><script type="text/javascript">//弹出层function openLayer(objId,conId){var arrayPageSize = getPageSize();//调用getPageSize()函数var arrayPageScroll = getPageScroll();//调用getPageScroll()函数if (!document.getElementById("popupAddr")){//创建弹出内容层var popupDiv = document.createElement("div");//给这个元素设置属性与样式popupDiv.setAttribute("id","popupAddr")popupDiv.style.position = "absolute";popupDiv.style.border = "1px solid #ccc";popupDiv.style.background = "#fff";popupDiv.style.zIndex = 99;//创建弹出背景层var bodyBack = document.createElement("div");bodyBack.setAttribute("id","bodybg")bodyBack.style.position = "absolute";bodyBack.style.width = "100%";bodyBack.style.height = (arrayPageSize[1] + 35 + 'px');bodyBack.style.zIndex = 98;bodyBack.style.top = 0;bodyBack.style.left = 0;bodyBack.style.filter = "alpha(opacity=50)";bodyBack.style.opacity = 0.5;bodyBack.style.background = "#ddf";//实现弹出(插入到目标元素之后)var mybody = document.getElementById(objId);insertAfter(popupDiv,mybody);//执行函数insertAfter()insertAfter(bodyBack,mybody);//执行函数insertAfter()}//显示背景层document.getElementById("bodybg").style.display = "";//显示内容层var popObj=document.getElementById("popupAddr")popObj.innerHTML = document.getElementById(conId).innerHTML;popObj.style.display = "";//让弹出层在页面中垂直左右居中(统一)// popObj.style.width = "600px";// popObj.style.height = "400px";// popObj.style.top = arrayPageScroll[1] + (arrayPageSize[3] - 35 - 400) / 2 + 'px';// popObj.style.left = (arrayPageSize[0] - 20 - 600) / 2 + 'px';//让弹出层在页面中垂直左右居中(个性)var arrayConSize=getConSize(conId)popObj.style.top = arrayPageScroll[1] + (arrayPageSize[3] - arrayConSize[1]) / 2-50 + 'px';popObj.style.left = (arrayPageSize[0] - arrayConSize[0]) / 2 -30 + 'px';}//获取内容层内容原始尺寸function getConSize(conId){var conObj=document.getElementById(conId)conObj.style.position = "absolute";conObj.style.left=-1000+"px";conObj.style.display="";var arrayConSize=[conObj.offsetWidth,conObj.offsetHeight]conObj.style.display="none";return arrayConSize;}function insertAfter(newElement,targetElement){//插入var parent = targetElement.parentNode;if(parent.lastChild == targetElement){parent.appendChild(newElement);}else{parent.insertBefore(newElement,targetElement.nextSibling);}}//获取滚动条的高度function getPageScroll(){var yScroll;if (self.pageYOffset) {yScroll = self.pageYOffset;} else if (document.documentElement && document.documentElement.scrollTop){yScroll = document.documentElement.scrollTop;} else if (document.body) {yScroll = document.body.scrollTop;}arrayPageScroll = new Array('',yScroll)return arrayPageScroll;}//获取页面实际大小function getPageSize(){var xScroll,yScroll;if (window.innerHeight && window.scrollMaxY){xScroll = document.body.scrollWidth;yScroll = window.innerHeight + window.scrollMaxY;} else if (document.body.scrollHeight > document.body.offsetHeight){sScroll = document.body.scrollWidth;yScroll = document.body.scrollHeight;} else {xScroll = document.body.offsetWidth;yScroll = document.body.offsetHeight;}var windowWidth,windowHeight;if (self.innerHeight) {windowWidth = self.innerWidth;windowHeight = self.innerHeight;} else if (document.documentElement && document.documentElement.clientHeight) {windowWidth = document.documentElement.clientWidth;windowHeight = document.documentElement.clientHeight;} else if (document.body) {windowWidth = document.body.clientWidth;windowHeight = document.body.clientHeight;}var pageWidth,pageHeightif(yScroll < windowHeight){pageHeight = windowHeight;} else {pageHeight = yScroll;}if(xScroll < windowWidth) {pageWidth = windowWidth;} else {pageWidth = xScroll;}arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight)return arrayPageSize;}//关闭弹出层function closeLayer(){document.getElementById("popupAddr").style.display = "none";document.getElementById("bodybg").style.display = "none";return false;}</script><script type="text/javascript">//对“拖动点”定义：onMousedown="StartDrag(this)" onMouseup="StopDrag(this)" onMousemove="Drag(this)"即可var move=false,oldcolor,_X,_Y;function StartDrag(obj){ //定义准备拖拽的函数obj.setCapture(); //对当前对象的鼠标动作进行跟踪oldcolor=obj.style.backgroundColor;obj.style.background="#999";move=true;//获取鼠标相对内容层坐标var parentwin=document.getElementById("popupAddr");_X=parentwin.offsetLeft-event.clientX_Y=parentwin.offsetTop-event.clientY}function Drag(obj){ //定义拖拽函数if(move){var parentwin=document.getElementById("popupAddr");parentwin.style.left=event.clientX+_X;parentwin.style.top=event.clientY+_Y;}}function StopDrag(obj){ //定义停止拖拽函数obj.style.background=oldcolor;obj.releaseCapture(); //停止对当前对象的鼠标跟踪move=false;}</script></head><body><input name="Input" id="test" value="点击弹出层" type="button" onclick="openLayer('test','test_con')" /><div id="test_con" style="display:none"><div id="tab" style="padding:8px;"><div id="tabtop"><div id="tabtop-L"><strong>层的标题在这里</strong></div><div id="tabtop-R" onclick="closeLayer()"><strong>[关闭层]</strong></div></div><div id="tabcontent">内容写在这里。。</div></div></div><br><br><input name="Input" id="test3" value="可拖动层" type="button" onclick="openLayer('test3','test_con3')" /><div id="test_con3" style="display:none"><div id="tab3" style="width:360px;height:200px;background:#fee;"><div id="tabtop3"><div id="tabtop-L3" onMousedown="StartDrag(this)" onMouseup="StopDrag(this)" onMousemove="Drag(this)"><strong style="color:red;font-size:20px">可拖动层的标题</strong></div><div id="tabtop-R3" onclick="closeLayer()"><strong>[关闭层]</strong></div></div><div id="tabcontent3" style="padding:8px">欢迎回来</div></div></div></body></html>