WebUI/FindPwd2.aspx.cs

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using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using BLL;
using Model;
using Utility;
public partial class FindPwd : System.Web.UI.Page
{
    public DataSet  DsUser
    {
        get
        {
            if (ViewState["VS_DsUser"] == null)
            {
                return null;//空参数转化的对应默认值
            }
            return (DataSet)ViewState["VS_DsUser"];

        }
        set
        {
            ViewState["VS_DsUser"] = value;
        }
    }
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            if (Session["DsUser"] == null)
            {
                Response.Write("<script language='javascript'>alert('请回到找回密码第一步！');location='FindPwd1.aspx';</script>");
                return;
            }
            else
            {
                DsUser = (DataSet)Session["DsUser"];
                lblQuestion.Text = DsUser.Tables[0].Rows[0]["question"].ToString();
            }
        }
    }
    protected void btnSave_Click(object sender, EventArgs e)
    {
        string usename = DsUser.Tables[0].Rows[0]["usename"].ToString();
        string answer=DsUser .Tables [0].Rows[0]["answer"].ToString ();
            if (Session["validateNum"].ToString().ToLower () != txtCode.Text.ToString().ToLower ())
            {
                Page.RegisterStartupScript("", "<script language='javascript'>alert('验证码输入有误！');</script>");
                return;
            }
           if(answer !=txtAnswer .Text .ToString ())
           {