<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="JAlert_2.aspx.cs" Inherits="JQueryStudy.JAlert_2" %>
<!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" defer="defer">
function isEmail(strEmail)
{
if (strEmail.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)
return true;
else
alert("您输入的Email不合法，请重新输入!");
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" runat="server" onblur="javascript:return isEmail($(this).val());"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
</div>
</form>
</body>
</html>
验证文本框中只能输入数字，如果不是数字，自动去掉
<asp:TextBox ID="txtTraineeNo" runat="server" onkeyup="value=value.replace(/[^\d]/g,'')"></asp:TextBox>
上面可以，下面不可以
function isNum(s)
{
return s.replace(/[^\d]/g, '');
}
<asp:TextBox ID="txtTraineeNo" runat="server" onkeyup="value=isNum($(this).val()) >asp:TextBox>