很多购物网站的搜索功能,都是你在文本框中输入东西后直接回车就跳到搜索页了,但是在文本框外按回车是不会响应的,自己看了一下他们的代码,像中关村商城的是PHP写的,搜索就是一个form,里面一个textbox一个submit按钮,这样在textbox中按下回车后会自动的提交到form中的action,自己是用ASP.NET写的,一个页面就一个form,自己写了一个响应文本框中回车的东西出来,自己测试过,IE6,8,FIREFOX,CHROME中浏览正常,代码:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="test_mulform.aspx.cs" Inherits="test_mulform" %>
<!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 runat="server">
<title></title>
<script type="text/javascript">
function responseEnter(e) {
// 响应回车
var key = window.event ? e.keyCode : e.which;
if (key == 13) {
//alert("回车了");
search();
}
}
function search() {
// 搜索
var key = document.getElementById("key").value;
if (key.length == 0) {
document.getElementById("key").focus(); //无效
alert("请输入搜索关键字!");
} else {
var url = "SearchItem.aspx?key=" + encodeURI(key) + "&typeid=0&typename=所有分类";
window.open(url);
}
}
</script>
</head>
<body>
<form id="form1" runat="server" onsubmit="return false;">
<input id="key" type="text" onkeypress="responseEnter(event);" />
<button style="cursor: pointer;" onclick="search();" type="button">
搜索
</button>
<div><%=DateTime.Now %></div>
</form>
</body>
</html>
<!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 runat="server">
<title></title>
<script type="text/javascript">
function responseEnter(e) {
// 响应回车
var key = window.event ? e.keyCode : e.which;
if (key == 13) {
//alert("回车了");
search();
}
}
function search() {
// 搜索
var key = document.getElementById("key").value;
if (key.length == 0) {
document.getElementById("key").focus(); //无效
alert("请输入搜索关键字!");
} else {
var url = "SearchItem.aspx?key=" + encodeURI(key) + "&typeid=0&typename=所有分类";
window.open(url);
}
}
</script>
</head>
<body>
<form id="form1" runat="server" onsubmit="return false;">
<input id="key" type="text" onkeypress="responseEnter(event);" />
<button style="cursor: pointer;" onclick="search();" type="button">
搜索
</button>
<div><%=DateTime.Now %></div>
</form>
</body>
</html>