前台HTML代码：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Denglu.aspx.cs" Inherits="Denglu" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
<style type="text/css">
* {
margin: 0px auto;
padding: 0px;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div id="aa" style="width:400px">
<h1> </h1>
<h1> </h1>
<h1> </h1>
<h1> </h1>
<h1> </h1>
<h1> 登录</h1>
<p> </p>
<p> </p>
<asp:Label ID="Label1" runat="server" Text="用户名："></asp:Label>
<asp:TextBox ID="txtUid" runat="server"></asp:TextBox>
<br />
<br />
<asp:Label ID="Label2" runat="server" Text="密码："></asp:Label>
<asp:TextBox ID="txtPwd" runat="server" TextMode="Password"></asp:TextBox>
<br />
<br />
<asp:Button ID="Button1" runat="server" Text="登陆" OnClick="Button1_Click" />
<asp:Literal ID="Literal1" runat="server"></asp:Literal>
</div>
</form>
</body>
</html>
后台C#代码：
public partial class Denglu : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
TextDataContext context = new TextDataContext();
//取值
string uid = txtUid.Text;
string pwd = txtPwd.Text;
//查询
var query = context.login1.Where(p => p.username == uid && p.password == pwd);
//判断
if (query.Count() > 0)
{
Session["uid"] = uid;
Response.Redirect("Main.aspx");
}
else
{
Literal1.Text = "<script type=‘Text/javascript‘>alert(‘用户名或密码错误！‘);</script>";
}
}
}
时间： 2024-08-06 17:18:05