Admin/Login.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 Login : System.Web.UI.Page
{
    SqlHelper data = new SqlHelper();
    SqlDataReader dr;
    Alert js = new Alert();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
 
        }
    }
    protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
    {
        if (UserName.Text == "" && PassWord.Text == "")
        {
            Alert.AlertAndRedirect("没有输入账号和密码！", "Login.aspx");


        }
        else
        {

            dr = data.GetDataReader("select * from  [Admin] where Username='" + UserName.Text + "'and UserPwd='" + PassWord.Text.Trim() + "'");
                if (dr.Read())
                {
                    Session["User"] = dr["Username"].ToString();
                    Session["Userid"] = dr["id"].ToString();
                    Session["Roule"] = "管理员";
                    Response.Redirect("Default.aspx");

                }
                else
                {
                    Alert.AlertAndRedirect("账号或者密码不对请重新登陆！", "Login.aspx");
                }
            }
         
       
       
    }
}