<!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 content="text/html; charset=utf-8" http-equiv="Content-Type" /> <title>suggest ajax示例</title> <meta name="author" content="geovindu 塗聚文"/><style type="text/css"> .ajaxsearch { 300px; /*提示层的宽度 */ </style> <script language="javascript" src="suggestajax.js" type="text/javascript"></script> </head> <body onResize="removediv();"> <div style="margin:20px 50px"> <input style="298px;height:18px" type="text" autocomplete="off" onBlur="blurdeal();" onKeyDown="keydowndeal(event);" onFocus="focusdeal(event);" /> </div> </body> </html>
suggestajax.js:
///////////////////////////////搜索提示框///////////////////////////////// var obj_div; //提示层对象 var obj_input; //输入框对象 var main_delay; //判断值变化延迟对象 var ajax_delay; //ajax延迟搜索对象 var updown_delay; //方向键延迟对象 var ajax_xmlhttp; //ajax对象 var div_word=null; //当前提示层对应的搜索值 var li_num=-1; //伪光标位置,提示层被选中的li序号,从0开始 var li_down=-1; //鼠标按下提示层的序号 var value_ed=""; //输入框延迟前的值 var value_ing=""; //输入框当前的值 var value_unexit=""; //搜索过没有结果的值开头 var updown_run=false; //允许方向键上下 var ajax_run=false; //true为正常进程,false停止ajax var ajax_run_ing=false; //true正在运行,false空闲 var input_focus=false; //文本框焦点 var url="ajax.asp"; //后台地址********************************************************** var time_delayajax=300; //搜索延迟********************************************************** var time_delayupdown=100; //方向键延迟******************************************************** var $=function(Fun_id){ return document.getElementById(Fun_id); } try{ ajax_xmlhttp= new ActiveXObject('Msxml2.XMLHTTP'); }catch(e){ try{ ajax_xmlhttp= new ActiveXObject('Microsoft.XMLHTTP'); }catch(e){ try{ ajax_xmlhttp= new XMLHttpRequest(); }catch(e){ajax_xmlhttp=null;} } } ////////////////////////创建提示层//////////////////////// function createajaxdiv(){ var create_div = document.createElement("div"); create_div.type = "div"; var promptdiv = document.body.appendChild(create_div); promptdiv.className = "ajaxsearch"; obj_div=promptdiv; } ////////////////////////设置提示层位置//////////////////////// function removediv(){ if(!obj_div || !obj_input)return false; if(obj_div.style.display=="none")return false; var obj=obj_input; var xtop=0; var xleft=0; while(obj){ xtop += obj["offsetTop"]; xleft += obj["offsetLeft"]; obj = obj.offsetParent; } obj_div.style.left = xleft + "px"; obj_div.style.top = (xtop + 20) + "px"; //20差不多是输入框的高度,请根据实际情况调整************************************************************8 li_down=-1; } ////////////////////////隐藏提示层//////////////////////// function hideajaxdiv(){ obj_div.style.display="none"; li_down=-1; } ////////////////////////设置被选<li>css样式//////////////////////// function setlistyle(){ for(var i=0;i<obj_div.firstChild.childNodes.length;i++){ obj_div.firstChild.childNodes[i].id=""; } if(li_num!=-1)obj_div.firstChild.childNodes[li_num].id="liseleted"; } ////////////////////////鼠标经过提示层//////////////////////// function overli(Fun_seletedlinum){ if(li_num==-1)value_ing=obj_input.value; li_num=Fun_seletedlinum; setlistyle(); } ////////////////////////鼠标拖动提示层//////////////////////// function moveli(){ if(window.getSelection){ setfocus(); window.getSelection().removeAllRanges(); }else{ document.selection.empty(); setfocus(); } } ////////////////////////鼠标按下提示层//////////////////////// function downli(Fun_seletedlinum){ if(!obj_input)return false; li_down=Fun_seletedlinum; input_focus=true; } ////////////////////////鼠标弹起提示层//////////////////////// function upli(Fun_seletedlinum,Fun_event){ if(!obj_input)return false; if(Fun_event.button==2){li_down=-1;return} if(li_down!=Fun_seletedlinum){ li_down=-1; return false; } clearTimeout(ajax_delay); clearTimeout(updown_delay); updown_run=true; ajax_run=false; ajax_run_ing=false; li_num=-1; div_word=null; value_ed=obj_div.firstChild.childNodes[Fun_seletedlinum].childNodes[1].nodeValue; obj_input.value=value_ed; value_ing=value_ed; hideajaxdiv(); obj_div.innerHTML=""; } ////////////////////////设置文本框获取焦点/////////////////////// function setfocus(){ if(window.event){ var r = obj_input.createTextRange(); r.moveStart('character',obj_input.value.length); r.collapse(true); r.select(); }else{ obj_input.selectionStart=obj_input.value.length; obj_input.focus(); } } ////////////////////////文本框失去焦点//////////////////////// function blurdeal(){ if(input_focus==true){ setfocus(); setTimeout("setfocus()"); return false; } updown_run=false; ajax_run=false; ajax_run_ing=false; clearInterval(main_delay); clearTimeout(ajax_delay); clearTimeout(updown_delay); hideajaxdiv(); if(value_ed!=obj_input.value)obj_div.innerHTML=""; } ////////////////////////文本框获取焦点//////////////////////// function focusdeal(Fun_event){ if(!obj_div)createajaxdiv(); if(input_focus==true){ input_focus=false; return false; } var obj=((window.event)?Fun_event.srcElement:Fun_event.target); if(obj.type!="text")return false; updown_run=true; ajax_run=true; ajax_run_ing=false; if(obj_input==obj && value_ed==obj.value && obj_div.innerHTML!=""){ obj_div.style.display="block"; removediv(); }else{ obj_input=obj; value_ed=obj.value; value_ing=obj.value; value_unexit=""; li_num=-1; li_down=-1; div_word=null; obj_div.innerHTML=""; removediv(); } main_delay=setInterval("mainajax()",10); } ////////////////////////主函数//////////////////////// function mainajax(){ if(value_ed==obj_input.value)return false; if(value_unexit!="" && (obj_input.value).indexOf(value_unexit)==0){hideajaxdiv();obj_div.innerHTML="";return false;} if(value_ed!=obj_input.value && ajax_run_ing==false){ ajax_run=true; value_ed=obj_input.value; clearTimeout(ajax_delay); if(obj_input.value!=""){ ajax_delay=setTimeout("getsearch();",time_delayajax); }else{ hideajaxdiv(); obj_div.innerHTML=""; ajax_run=false; return false; } } } ////////////////////////获取搜索内容//////////////////////// function getsearch(){ var temp_value=obj_input.value; if(ajax_xmlhttp==null){ return false; }else if(ajax_xmlhttp.readyState!=0){ ajax_xmlhttp.abort(); ajax_run_ing=false; } ajax_xmlhttp.onreadystatechange=function(){ if(ajax_run==false){ajax_xmlhttp.abort();ajax_run_ing=false;return false;} if(ajax_xmlhttp.readyState==4){ obj_div.innerHTML=""; if(ajax_xmlhttp.status==200 || ajax_xmlhttp.status==304){ var contant=ajax_xmlhttp.responseText; if(contant!="" && ajax_run==true){ div_word=temp_value; obj_div.innerHTML=resetcontant(contant); obj_div.style.display="block"; removediv();removediv(); }else{ hideajaxdiv(); } updown_run=true; ajax_run_ing=false; li_num=-1; if(contant=="")value_unexit=temp_value; } } } ajax_xmlhttp.open("post",url,true); ajax_xmlhttp.setRequestHeader('Content-type','application/x-www-form-urlencoded'); ajax_run_ing=true; ajax_xmlhttp.send("sift_value="+escape(temp_value)); //提交到后台的值***************************************** } ////////////////////////内容重组/////////////////////// function resetcontant(Fun_contant){ if(Fun_contant==null || Fun_contant=="")return ""; var a=Fun_contant.substring(1,Fun_contant.length-1); if(Fun_contant==null || Fun_contant=="")return ""; var b=a.split("''"); var c; var d; d="<ul>"; for(var i in b){ c=b[i].split(","); //*************************************************************** d=d+"<li onmouseover="overli("+i+");" onmousedown="downli("+i+")" onmouseup="upli("+i+",event)" onmousemove="moveli();"><span>"+c[1]+"</span>"+c[0]+"</li>"; //约 结果 //*************************************************************** } d=d+"<li onmousedown="input_focus=true;li_down=-1;" onmouseup="li_down=-1" onmousemove="moveli();"><span><a class="shutajaxdiv" onclick="hideajaxdiv();">关闭</a></span></li>" d=d+"</ul>"; return d; } ////////////////////////键盘事件//////////////////////// function keydowndeal(Fun_event){ var keyc=((window.event)?Fun_event.keyCode:Fun_event.which); if(keyc==13){hideajaxdiv();return false;} if(keyc==27){ if(obj_div.style.display=="block" && li_num>-1)value_ed=obj_input.value=value_ing; hideajaxdiv(); return false; } if(keyc==40 || keyc==38){ if(div_word==obj_input.value && obj_div.style.display=="none" && obj_div.innerHTML!=""){ obj_div.style.display="block"; removediv(); return false; } if(li_num==-1){ if(div_word!=obj_input.value)return false; }else{ if(div_word!=value_ing)return false; } if(updown_run==false || ajax_run_ing==true || obj_div.style.display=="none")return false; updown_delay=setTimeout("updownli("+keyc+")",time_delayupdown); updown_run=false; } } ////////////////////////方向键移动li//////////////////////// function updownli(Fun_key){ if(!obj_div){return false;} updown_run=true; if(li_num==-1){ if(div_word!=obj_input.value){hideajaxdiv();obj_div.innerHTML="";li_num=-1;return false;} }else{ if(div_word!=value_ing){hideajaxdiv();obj_div.innerHTML="";li_num=-1;return false;} } if(updown_run==false)return false; if(li_num==-1)value_ing=value_ed; if(Fun_key==40){ if(li_num<obj_div.firstChild.childNodes.length-2){ li_num++; }else{ li_num=-1; } } if(Fun_key==38){ if(li_num>=0){ li_num--; }else{ li_num=obj_div.firstChild.childNodes.length-2; } } if(li_num!=-1){ value_ed=obj_input.value=obj_div.firstChild.childNodes[li_num].childNodes[1].nodeValue; }else{ value_ed=obj_input.value=value_ing; } setlistyle(); }
ajax.asp
<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001" %> <%Response.CodePage="65001"%> <%Response.Charset="utf-8" %> <!--#include file="Conn.asp"--> <% dim Sift_value dim Sql,Rs,I,Num dim Contant Contant="" Num=10 Sift_value=replace(unescape(request.form("sift_value")),"""","""""") Sql="select top "&Num&" ShopAddress,LicenseId from LC where ShopAddress like '%"&Sift_value&"%' order by LicenseId" 'Response.Write Sql set Rs=server.CreateObject("adodb.recordset") Rs.open Sql,O_con,1,1 if not (Rs.eof and Rs.bof) then for I=0 to Num-1 Contant=Contant&"'"&rs(0)&","&rs(1)&"'" Rs.movenext if Rs.eof then exit for next end if response.Write(Contant) Rs.close set Rs=nothing %>