Default.aspx.cs

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using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.Text;

public partial class _Default : System.Web.UI.Page
{
    private readonly string ConnectionString = ConfigurationManager.AppSettings["ConnectionString"].ToString();
	protected void Page_Load(object sender,EventArgs e)
	{
		///添加页面初始化代码
		if(!Page.IsPostBack)
		{
            Session["UserID"] = this.UserName.Text.Trim();
		}
	}
    protected void LoginBtn_Click(object sender, EventArgs e)
    {

        //创建连接字符串
        string sqlstr;
        sqlstr = "select Password,IsAdmin,UserID from Users where UserName=@adminname ";
        SqlConnection scon = new SqlConnection(ConnectionString);
        SqlCommand scm = new SqlCommand(sqlstr, scon);
        scm.Parameters.Add("@adminname", SqlDbType.VarChar, 20);
        scm.Parameters["@adminname"].Value = this.UserName.Text.Trim();
        scon.Open();
        SqlDataReader reader = scm.ExecuteReader();
        if (reader.Read())
        {

            string strPwd = reader[0].ToString();
            string stradmin = reader[1].ToString().Trim();
            Session["UID"] = reader[2].ToString().Trim();

            reader.Close();
            if (strPwd != Password.Text.Trim())
            {
                this.Message.Text = "密码错误！";
            }
            else
            {
                if (this.DropDownList1.SelectedValue == "1")//下拉列表的值 1代表1是管理员 2为分析员 填写分析报告3为普通用户 填写问卷
                { //stradmin为1是管理员 2为分析员 填写分析报告3为普通用户 填写问卷
                    //if (stradmin == "1")
                    if (stradmin == "系统管理员")
                    {
                        Response.Redirect("ManageList.aspx");//管理页面
                    }
                    else 
                    {
                        this.Message.Text = "对不起，您暂时没有权限！请与管理员联系！";
                    }