C# 搜索提示代码，经典

<script language="javascript"> var intIndex=0;arrList = new Array(); arrList[intIndex++] = " 1sdfsdf.com"; arrList[intIndex++] = " a11sdafs.net"; arrList[intIndex++] = " b22dsafsdf"; arrList[intIndex++] = " c333asdfsadf"; arrList[intIndex++] = " 4444dsafasdf"; arrList[intIndex++] = " dddsfddsafdsaf"; arrList[intIndex++] = " 121213dsafsdaf"; arrList[intIndex++] = " 43213asdfadsf"; arrList[intIndex++] = " dsa3121dasf3"; arrList[intIndex++] = " a213"; arrList[intIndex++] = " 323313"; arrList[intIndex++] = " 3213"; arrList[intIndex++] = " 32213"; arrList[intIndex++] = " dsfsdddd"; arrList[intIndex++] = " ds11dfsfd"; arrList[intIndex++] = " ffdafd"; arrList[intIndex++] = " afdfd"; arrList[intIndex++] = " afd"; arrList[intIndex++] = " baffad"; arrList[intIndex++] = " 2fda2fd"; arrList[intIndex++] = " dasd"; function smanPromptList(arrList,objInputId){ this.style = "background:#E8F7EB;border: 1px solid #CCCCCC;font-size:14px;cursor: default;" if (arrList.constructor!=Array){alert('smanPromptList初始化失败:第一个参数非数组!');return ;} window.onload =function() { arrList.sort(function(a,b){ if(a.length>b.length)return 1; else if(a.length==b.length)return a.localeCompare(b); else return -1; }) var objouter=document.getElementById("__smanDisp") //显示的DIV对象 var objInput = document.getElementById(objInputId); //文本框对象 var selectedIndex=-1; var intTmp; //循环用的:) if (objInput==null) {alert('smanPromptList初始化失败:没有找到"'+objInputId+'"文本框');return ;} //文本框失去焦点 objInput.onblur=function(){ objouter.style.display='none'; } //文本框按键抬起 objInput.onkeyup=checkKeyCode; //文本框得到焦点 objInput.onfocus=checkAndShow; function checkKeyCode(){ var ie = (document.all)? true:false if (ie){ var keyCode=event.keyCode if (keyCode==40||keyCode==38){ //下上 var isUp=false if(keyCode==40) isUp=true ; chageSelection(isUp) }else if (keyCode==13){//回车 outSelection(selectedIndex); }else{ checkAndShow() } }else{ checkAndShow() } divPosition() } function checkAndShow(){ var strInput = objInput.value if (strInput!=""){ divPosition(); selectedIndex=-1; objouter.innerHTML =""; for (intTmp=0;intTmp<arrList.length;intTmp++){ for(i=0;i<arrList[intTmp].length;i++){ if (arrList[intTmp].substr(i, strInput.length).toUpperCase()==strInput.toUpperCase()){ addOption(arrList[intTmp],strInput); } } } objouter.style.display=''; }else{ objouter.style.display='none'; } function addOption(value,keyw){ var v=value.replace(keyw,"<b><font color=red>"+keyw+"</font></b>"); objouter.innerHTML +="<div onmouseover=\"this.className='sman_selectedStyle'\" onmouseout=\"this.className=''\" onmousedown=\"document.getElementById('"+objInputId+"').value='" + value + "'\">" + v + "</div>" } } function chageSelection(isUp){ if (objouter.style.display=='none'){ objouter.style.display=''; }else{ if (isUp) selectedIndex++ else selectedIndex-- } var maxIndex = objouter.children.length-1; if (selectedIndex<0){selectedIndex=0} if (selectedIndex>maxIndex) {selectedIndex=maxIndex} for (intTmp=0;intTmp<=maxIndex;intTmp++){ if (intTmp==selectedIndex){ objouter.children[intTmp].className="sman_selectedStyle"; }else{ objouter.children[intTmp].className=""; } } } function outSelection(Index){ objInput.value = objouter.children[Index].innerText; objouter.style.display='none'; } function divPosition(){ objouter.style.top =getAbsoluteHeight(objInput)+getAbsoluteTop(objInput); objouter.style.left =getAbsoluteLeft(objInput); objouter.style.width=getAbsoluteWidth(objInput) } } document.write("<div id='__smanDisp' style='position:absolute;display:none;" + this.style + "' onbulr> </div>"); document.write("<style>.sman_selectedStyle{background-Color:#102681;color:#FFFFFF}</style>"); function getAbsoluteHeight(ob){ return ob.offsetHeight } function getAbsoluteWidth(ob){ return ob.offsetWidth } function getAbsoluteLeft(ob){ var s_el=0;el=ob;while(el){s_el=s_el+el.offsetLeft;el=el.offsetParent;}; return s_el } function getAbsoluteTop(ob){ var s_el=0;el=ob;while(el){s_el=s_el+el.offsetTop ;el=el.offsetParent;}; return s_el } } smanPromptList(arrList,"inputer") </script> <table><tr><td> <input type="text" id="inputer"></td></tr></table>