updatepassword.aspx.cs

毕业设计题目,学生成绩查询系统,包括管理员和普通用户两级管理

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace StudentScroeQuery.Student
{
	/// <summary>
	/// updatePassword 的摘要说明。
	/// </summary>
	public class updatePassword : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox txtold;
		protected System.Web.UI.WebControls.TextBox txtnew;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator2;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator3;
		protected System.Web.UI.WebControls.Button Button1;
		protected System.Web.UI.WebControls.CompareValidator CompareValidator1;
		protected System.Web.UI.HtmlControls.HtmlForm Form1;
		protected System.Web.UI.WebControls.TextBox txtnewagain;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			if(Session["username"]==null)
			{
				Response.Redirect("user_login.aspx",true);
			}
		}

		#region Web 窗体设计器生成的代码
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
			this.txtnew.TextChanged += new System.EventHandler(this.txtnew_TextChanged);
			this.Button1.Click += new System.EventHandler(this.Button1_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void txtnew_TextChanged(object sender, System.EventArgs e)
		{
		
		}

		private void Button1_Click(object sender, System.EventArgs e)
		{
			if(txtold.Text!=Session["userpassword"].ToString())
			{
				Response.Write("<script>alert('原始密码错误')</script>");
				return;
			}
			int userid=Convert.ToInt32(Session["username"].ToString());
			string password=System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(txtnew.Text,"md5");
			try
			{
				new BLL.loginBll().updatepwd(userid,password);
				Session["userpassword"]=txtnew.Text;
				Response.Write("<script>alert('密码修改成功!')</script>");


			}
			catch
			{
				Response.Write("<script>alert('密码修改失败!')</script>");
			}	
		}
	}
}