userprotection.aspx.cs

ASP.NET 2.0动态网站设计实例源代码,本书介绍了ASP.NET2.0的基础知识

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;

public partial class UserProtection : System.Web.UI.Page
{
 protected void Page_Load(object sender, EventArgs e)
 {

 }
 protected void Wizard1_NextButtonClick(object sender, WizardNavigationEventArgs e)
 {
  switch (e.CurrentStepIndex)
  {
   case 0:
    {
     if (!IsUserExist(tbxUserName.Text))
     {
      lblUserNotExist.Visible = true;
      e.Cancel = true;
     }
     else
     {
      object userQuestion = GetUserQuestion(tbxUserName.Text);
      if (userQuestion == null)
      {
       lblUserNotExist.Text = "您没有注册密码保护！";
       lblUserNotExist.Visible = true;
       e.Cancel=true;
      }
      else
      {
       lblQuestion.Text = GetUserQuestion(tbxUserName.Text);
      }
     }
    }
    break;
   case 1:
    {
     if (!IsUserAnswerRight(tbxAnswer.Text))
     {
      lblWrongAnswer.Visible = true;
      e.Cancel = true;
     }
     else
     {
      Session["AnswerRight"] = true;
     }
    }
    break;
  }
 }

 /// <summary>
 /// 指定用户名的密码问题是否正确
 /// </summary>
 private bool IsUserAnswerRight(string pstrUserAnswer)
 {
  UserEntity user = (UserEntity)Session["User"];
  user.Answer = pstrUserAnswer;

  UserBussiness userBuss = new UserBussiness();
  return userBuss.IsUserAnswerRight(user);
 }
 /// <summary>
 /// 获取指定用户名的密码保护问题
 /// </summary>
 private string GetUserQuestion(string pstrUserName)
 {
  UserEntity user = (UserEntity)Session["User"];
  UserBussiness userBuss = new UserBussiness();

  userBuss.GetUserQuesion(ref user);
  return user.Question;
 }
 /// <summary>
 /// 指定用户名是否存在
 /// </summary>
 private bool IsUserExist(string pstrUserName)
 {
  UserEntity user = new UserEntity();
  UserBussiness userBuss = new UserBussiness();
  user.UserName = pstrUserName;
  if (userBuss.IsUserNameExist(ref user))
  {
   Session["User"] = user;
   return true;
  }
  else
   return false;
 }

 protected void Wizard1_FinishButtonClick(object sender, WizardNavigationEventArgs e)
 {

  if (Session["User"] == null)
  {
   Response.Redirect("UserProtection.aspx",true);
   return;
  }

  if (!(bool)Session["AnswerRight"])
  {
   Response.Redirect("UserProtection.aspx", true);
   return;
  }

  UserEntity user = (UserEntity)Session["User"];
  UserBussiness userBuss = new UserBussiness();
  user.Password = tbxPassword.Text;
  userBuss.ModifyPassword(user);
  Session.Clear();
  Common.RegisterAlertScript("修改密码成功！请使用新密码登录！", "Login.aspx", "ModifySuccess", this.Page);
 }
}