Web/Manage/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 SL.Common;

public partial class Manage_login : System.Web.UI.Page
{
    protected void Login_Click(object sender, ImageClickEventArgs e)
    {
        if (username.Text.Length == 0)
        {
            Msg.Show("用户名不能为空");
            return;
        }
        if (password.Text.Length == 0)
        {
            Msg.Show("密码不能为空");
            return;
        }

        SL.BLL.admin bll=new SL.BLL.admin();
        string Pass=password.Text.Replace("'","''");
        DataSet ds=bll.GetData("*","loginName='"+username.Text.Replace("'","''")+"' and password='"+Pass+"'");
        if(ds.Tables[0].Rows.Count>0)
        {
	    DataRow dr=ds.Tables[0].Rows[0];
        Session["loginName"] = dr["loginName"].ToString();
            Response.Redirect("Default.aspx");
        }
        else
        {
            Msg.Show("您输入的用户名或密码不正确");
            return;
        }
    }
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void ImageButton2_Click(object sender, ImageClickEventArgs e)
    {

    }
    protected void ImageButton3_Click(object sender, ImageClickEventArgs e)
    {
        Response.Redirect("~/Default.aspx");
    }
}