Homework/Student/UPPwd.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 dbClass;
using System.Data.SqlClient;

namespace Homework.Student
{
    public partial class UPPwd : System.Web.UI.Page
    {
        Alert alert = new Alert();
        SqlHelper data = new SqlHelper();
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {


            }
        }
        /// <summary>
        /// 修改密码
        /// </summary>
        private void UPpwds()
        {
            SqlHelper mydata = new SqlHelper();
            string name = Session["users"].ToString();
            try
            {
                mydata.RunSql("update Student  set Pwd ='" + txtpwd2.Text + "' where UserName=" + name);



                Label4.Text = "修改成功！";


            }
            catch
            {
                Label4.Text = "修改失败！";
            }
        }
        /// <summary>
        /// 检验原来的密码
        /// </summary>
        private void chkpwd()
        {
            SqlDataReader dr;
            dr = data.GetDataReader("select * from Student   where UserName='" + Session["users"].ToString() + "' and pwd='" + txtpwd1.Text + "'");
            if (dr.Read())
            {
                UPpwds();
            }