login1.aspx.cs

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using System;
using System.Data;
using System.Configuration;
using System.Collections;
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;

public partial class login1 : System.Web.UI.Page
{
    string ConnectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
    data data = new data();
    SqlDataReader dr;
    Alert js = new Alert();

    protected void Page_Load(object sender, EventArgs e)
    {
        //if (!IsPostBack)
        //{
        //    if (Session["MName"] != null)
        //    {
        //        MName.Text = Session["MName"].ToString();
        //    }
        //}
    }

    private void chkADmin()
    {
        if (txtMName.Text == "" && txtMPwd.Text == "")
        {
            Alert.AlertAndRedirect("没有输入账号和密码！", "Login1.aspx");


        }
        else
        {
            dr = data.GetDataReader("select * from  Admin where name='" + txtMName.Text.Trim() + "'and Password='" + txtMPwd.Text.Trim() + "'");
            if (dr.Read())
            {
                Session["admin"] = dr["name"].ToString();
                Response.Write("<script language=javascript>window.open('admin/Main.aspx');window.close();</script>");
          

            }
            else
            {
                Alert.AlertAndRedirect("管理员的账号或者密码不对请重新登陆！", "Login.aspx");
            }
        }
    }
    protected void btnEntry_Click(object sender, EventArgs e)
    {
        chkADmin();
    }
}