今天和大家一起利用ASP模仿实现google suggest风格的下拉菜单,直接上代码

1.前台代码:

<%@LANGUAGE="JAVASCRIPT" CODEPAGE="936"%>
<!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">
<style type="text/css">
<!--
.style1 {color: #FF0000}
.mouseOut
{
font-size:12px;
background: #708090;
color: #FFFAFA;
}
  
.mouseOver
{
font-size:12px;
background: #FFFAFA;
color: #000000;
}
-->
</style>
   <script type="text/javascript" language="javascript">
    var xmlHttp;
    var completeDiv;
    var inputField;
    var nameTable;
    var nameTableBody;
    var flag=false;
  
    function createXMLHttpRequest() {
      if (window.ActiveXObject) {
        xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
      }
      else if (window.XMLHttpRequest) {
        xmlHttp = new XMLHttpRequest();        
      }
    }
    
    function setflag(){
      flag = true;
    }
    
    function DisSelect()
    {
      if(flag==false)
      document.getElementById("popup").style.display="none";
    }
  
    function initVars() {
      inputField = document.getElementById("frmchangshang");      
      nameTable = document.getElementById("name_table");
      completeDiv = document.getElementById("popup");
      nameTableBody = document.getElementById("name_table_body");
      document.getElementById("popup").style.display="block";
    }
  
    function findNames() {
      initVars();
      if (inputField.value.length > 0)
  {
        createXMLHttpRequest();
        var url = "search.asp" + inputField.value; 
        xmlHttp.open("GET", url, true);
        xmlHttp.onreadystatechange = callback;
        xmlHttp.send(null);
      }
  else
  {
        clearNames();
      }
    }
  
    function callback() {
      if (xmlHttp.readyState == 4) {
        if (xmlHttp.status == 200)
        {
   try
          {
            var name = xmlHttp.responseXML.getElementsByTagName("name")

[0].firstChild.data;
          }
          catch(e)
          {
            document.getElementById("popup").style.display="none";
            clearNames();
          }
          setNames(xmlHttp.responseXML.getElementsByTagName("content"));
        }
        else if (xmlHttp.status == 204)
        {
          clearNames();
        }
      }
    }
    
    function setNames(the_names) {      
      clearNames();
      var size = the_names.length;
      setOffsets();
      var row,cell,spans;
      for (var i = 0; i < size; i++) {
        //var nextNode = the_names[i].firstChild.data;
  var e = the_names[i];
  //取得子节点内容,重新装载为数组
  var nextNode=e.getElementsByTagName("name")[0].firstChild.data;
  //创建tr,td,span元素
        row =document.createElement("tr");
        cell =document.createElement("td");
  //spans=document.createElement("span");
  //设置cell属性
        cell.onmouseout = function() {this.className='mouseOver'; flag=false;};
        cell.onmouseover = function() {this.className='mouseOut'; flag=true;};
        cell.setAttribute("bgcolor","#FFFAFA");
        cell.setAttribute("border","0");
        //cell.setAttribute("onmouseover","setflag()");
        cell.onclick = function() { populateName(this); };
  //将nextNode添加到td
  var txtName = document.createTextNode(nextNode);
  cell.appendChild(txtName);
  //装载隐藏数据到span元素
  row.appendChild(cell);
        nameTableBody.appendChild(row);
      }
    }
  
    function setOffsets() {
      var end = inputField.offsetWidth;
      var left = calculateOffsetLeft(inputField);
      var top = calculateOffsetTop(inputField) + inputField.offsetHeight;
  
      completeDiv.style.border = "black 1px solid";
      completeDiv.style.left = left + "px";
      completeDiv.style.top = top + "px";
      nameTable.style.width="400px";
    }
    
    function calculateOffsetLeft(field) {
     return calculateOffset(field, "offsetLeft");
    }
  
    function calculateOffsetTop(field) {
     return calculateOffset(field, "offsetTop");
    }
  
    function calculateOffset(field, attr) {
     var offset = 0;
     while(field) {
      offset += field[attr];
      field = field.offsetParent;
     }
     return offset;
    }
  
    function populateName(cell) {
  //填充数据到web页面,cell---->td对象
      inputField.value = cell.firstChild.nodeValue;
      clearNames();
    }
    //清除列表数组
    function clearNames() {
      var ind = nameTableBody.childNodes.length;
      for (var i = ind - 1; i >= 0 ; i--) {
         nameTableBody.removeChild(nameTableBody.childNodes[i]);
      }
      completeDiv.style.border = "none";
    }
</script>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>Untitled Document</title>
</head>
  
<body>
<input name="frmchangshang" class="InputText" id="frmchangshang" style="width:250px;" 

onBlur="DisSelect();" onKeyUp="findNames();" size="50" maxlength="100">
          &nbsp;<span class="style1">提示:输入关键字,程序自动从库中匹配您

要找的记录,如果不存在自行填写
     </span>
          <div style="position:absolute;top:0;left:0;" id="popup">
            <table id="name_table" bgcolor="#FFFAFA" border="0" cellspacing="0" 

cellpadding="0">      
              <tbody id="name_table_body"></tbody>
            </table>
         </div>
</body>
</html>

2.后台search.asp异步查询数据页面
把sql语句和要显示的字段改为自己的数据库相对应格式就可以了。

<!--#include virtual="conn.asp" -->
<%
keyword=request.QueryString("names")
sql="select lgid,lgmc from lg where lgmc like '%"&keyword&"%' order by lgid desc"
set rs=server.CreateObject("adodb.recordset")
rs.open sql,conn,1,1
Response.ContentType="text/xml"  
response.Write "<""1.0"" encoding=""GB2312"" "
response.Write "<response>"
do while not rs.eof
response.Write "<content>"
response.Write "<name>"&rs("lgmc")&"</name>"
'response.Write "<userid>"&rs("userid")&"</userid>"
'response.Write "<startime>"&rs("startime")&"</startime>"
'response.Write "<endtime>"&rs("endtime")&"</endtime>"
response.Write "</content>"
rs.movenext
loop
response.Write "</response>"
rs.close
set rs=nothing
%>

以上就是ASP模仿google suggest风格实现下拉菜单效果的代码,希望对大家的学习有所帮助。

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稳了!魔兽国服回归的3条重磅消息!官宣时间再确认!

昨天有一位朋友在大神群里分享,自己亚服账号被封号之后居然弹出了国服的封号信息对话框。

这里面让他访问的是一个国服的战网网址,com.cn和后面的zh都非常明白地表明这就是国服战网。

而他在复制这个网址并且进行登录之后,确实是网易的网址,也就是我们熟悉的停服之后国服发布的暴雪游戏产品运营到期开放退款的说明。这是一件比较奇怪的事情,因为以前都没有出现这样的情况,现在突然提示跳转到国服战网的网址,是不是说明了简体中文客户端已经开始进行更新了呢?