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;

public partial class Web_Login : System.Web.UI.Page
{
    BaseClass bc = new BaseClass();
    protected void Page_Load(object sender, EventArgs e)
    {
        this.ImgbtnClose.Attributes.Add("onclick", "window.close()");
    }
    
    protected void ImgbtnLogin_Click(object sender, ImageClickEventArgs e)
    {
        
        DataSet ds = bc.GetDataSet("SELECT User_name,User_pwd,User_type FROM tb_User where User_name='" +txbUserName.Text + "' and User_pwd='" + txbPwd.Text + "'","tb_User");
        if (ds.Tables[0].Rows.Count == 0)
        {
            lblMessage.Text="用户名或者密码错误！";
            txbUserName.Text = "";
            txbPwd.Text = "";
          
        }
        else 
        {
            //Rows[0]["User_type"]第0行第n个字段
            if (ds.Tables[0].Rows[0]["User_type"].ToString() == "1")
            {
                Response.Redirect("Default.aspx?User_name=" + txbUserName.Text.ToString());
            }
            else Response.Redirect("Search.aspx?User_name=" + txbUserName.Text.ToString());
        }
    }
    protected void ImgbtnClose_Click(object sender, ImageClickEventArgs e)
    {
         Response.Write("<script language:javascript>javascript:window.close();</script>"); 

    }
}