admin/adminlogin.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 admin_adminlogin : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Linkaddnews_Click(object sender, EventArgs e)
    {
        //管理员登陆
        SqlConnection con = db.ceratcon();
        con.Open();
        SqlCommand cmd = new SqlCommand("select * from Admin where  aname='" + this.txtname.Text + "'and  apwd='" + this.txtpwd.Text + "'", con);
        SqlDataReader sdr = cmd.ExecuteReader();
        if (sdr.Read())
        {
            Response.Write("<script language='javascript'>alert('登录成功！');location.href='AdminContral.aspx'</script>");
         

        }
        else
        {
            Response.Write("<script language='javascript'>alert('用户名或密码错误登录失败！')</script>");

        }
    }
    private void del()
    {//删除有问题的问题
        string str;
        str = Request.QueryString["qid"].ToString();
        SqlConnection con = db.ceratcon();
        con.Open();
        SqlCommand cmd = new SqlCommand(" delete question    where qid=@qid", con);
        cmd.Parameters.Add("@qid", SqlDbType.Int);
        cmd.Parameters["@qid"].Value = str;
        cmd.ExecuteNonQuery();
        con.Close();
        Response.Write("<script language='javascript'>alert('删除成功！');location.href='question.aspx'</script>");

    }
}