WB 例子登录

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>
</head>
<body>
    <form id="form1" runat="server">
    <div>
           <h1>登录</h1>
        <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"></asp:TextBox>
        <br />
        <br />
        <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="登录" />
        <br />
    </div>
        <asp:Literal ID="Literal1" runat="server"></asp:Literal>
    </form>
</body>
</html>

　　后台C#代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class DengLu : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        testDataContext context = new testDataContext();

        //取值
        string uid = txtUid.Text;
        string pwd = txtPwd.Text;
        //查询
        var query = context.Login.Where(p => p.UserName == uid && p.Password == pwd);
        if (query.Count() > 0)
        {
            Session["uid"] = uid;
            //跳转页面
            Response.Redirect("Main.aspx");
        }

        else
        {
            Literal1.Text = "<script type='text/javascript'>alert('用户名或密码错误!');</script>";
        }
    }
}

　　网页显示：

WB 例子 登录

WB 例子登录