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 LYF.SqlHelper;
using System.Data.SqlClient;

public partial class Manage_Login : System.Web.UI.Page
{
    private SqlHelper shp = new SqlHelper("XS");
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack) 
        {
        
        }
    }
    /// <summary>
    /// 登录事件
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void loginBT_Click(object sender, EventArgs e)
    {
        int count = 0;
        string sql = "select count(*) from XS_Manager where username='" + this.uname.Value + "' and loginpwd='" + this.loginpwd.Value + "'";
        using (SqlDataReader dr = shp.ExecuteReader(sql)) 
        {
            if (dr.Read()) 
            {
                count = Int32.Parse(dr[0].ToString());
            }
        }
        shp.CloseDB();
        if (count > 0)
        {
            Session["Uname"] = this.uname.Value;
            Response.Redirect("default.aspx");
        }
        else 
        {
            ShowJsMsg("登录失败，用户名密码错误！");
        }
    }
    public void ShowJsMsg(string msg)
    {
        this.ClientScript.RegisterStartupScript(this.GetType(), "message",
            "<script type='text/javascript' defer='defer'>alert('" + msg + "');</script>");
    }
}