Login.aspx.cs

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using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using LYF.SqlHelper;

public partial class _Login : System.Web.UI.Page
{
    private SqlHelper shp = new SqlHelper("XS");
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
        }
    }
    protected void LGBT_Click(object sender, EventArgs e)
    {
        string selec = "select * from XS_User where number='" + zhtb.Text + "',onepwd='" + pwdtb.Text + "'";
        using (SqlDataReader dr = shp.ExecuteReader(selec))
        {
            if (dr.Read())
            {
                Session["uname"] = dr["number"].ToString();
                Response.Redirect("index.aspx");
            }
            else
            {
                ShowJsMsg("账号或密码错误，请重新输入！");
            }
        }
        shp.CloseDB();
    }
    public void ShowJsMsg(string msg)
    {
        this.ClientScript.RegisterStartupScript(this.GetType(), "message",
            "<script type='text/javascript' defer='defer'>alert('" + msg + "');</script>");
    }
}