想了解asp.net使用jquery实现搜索框默认提示功能的相关内容吗，在本文为您仔细讲解jquery实现搜索框默认提示的相关知识和一些Code实例，欢迎阅读和指正，我们先划重点：搜索框默认提示，下面大家一起来学习吧。
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Web.Default" %>
<!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 src="jquery-1.8.2.min.js" type="text/javascript"></script>
<link href="Base.css" rel="stylesheet" type="text/css" />
<style type="text/css">
.text
{
border: #0a8fda solid 1px;
color: #cccccc;
font-style:italic;
background: #fff url(img/input.gif);
padding: 5px;
}
.text-focus
{
border: solid 1px #f50;
background: #fff url(img/input.gif);
padding: 5px;
}
</style>
<script type="text/javascript">
$(document).ready(function () {
var txtSearch = $("#<%=txtSearch.ClientID%>");
$("#txtSearch").focus(function () {
if (txtSearch.val() == this.title) {
txtSearch.val("");
this.className = "text-focus";
}
});
$("#txtSearch").blur(function () {
if (txtSearch.val() == "") {
txtSearch.val(this.title);
this.className = "text";
}
});
txtSearch.blur();
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div style="margin: 100px auto; width: 400px; height: 80px;border: solid 1px #0a8fda;">
<p style="text-align:center;">
<asp:TextBox ID="txtSearch" runat="server" Width="200px" class="text" ToolTip="请输入搜索的关键字"></asp:TextBox>
<asp:Button ID="btnSearch" runat="server" Text="搜索" class="button blue" />
</p>
</div>
</form>
</body>
</html>
