admin/login.aspx.cs

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

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

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        SqlHelper data = new SqlHelper();
        SqlDataReader sdr1;
        sdr1 = data.GetDataReader("select * from Admin where Name='" + this.txtUserID.Text.Trim() + "' and Pass='" + this.txtPwd.Text.Trim() + "'");

        if (sdr1.Read())
        {
            Session["admin"] = sdr1["Name"].ToString();
            Session["ID"] = sdr1["ID"].ToString();
            Alert.AlertAndRedirect("恭喜您登录成功！", "index.aspx");
        }
        else
        {
            Alert.AlertAndRedirect("登录失败！", "login.aspx");
        }
    }
}