EditPassword.aspx.cs

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using MyWeb.DBUtility;
using MyWeb.WebUtility;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace SelectCourseSystem
{
    public partial class EditPassword : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            //首次加载
            if (!IsPostBack)
            {
                //输入框赋值
                TextBox1.Text = Session["name"].ToString();
            }
        }
        protected void Button1_Click(object sender, EventArgs e)
        {
            DBHelper db = new DBHelper();
            WebHelper wb = new WebHelper();
            //判断是否存在
            if(TextBox2.Text==""){
                wb.Alert("原密码不能为空！");
            }
            else if (TextBox3.Text == "")
            {
                wb.Alert("新密码不能为空！");
            }
            else if (TextBox4.Text == "")
            {
                wb.Alert("确认密码不能为空！");
            }
            else if (TextBox4.Text != TextBox3.Text)
            {
                wb.Alert("确认密码和新密码不一致！");
            }
            else {
                string sql = "select id,name from UserInfo_Tbl where del=0 and id='" + Session["id"].ToString() + "' and password='" + TextBox2.Text + "'";
                DataSet ds = db.Query(sql);
                if (ds.Tables[0].Rows.Count > 0)
                {
                    //进行密码的更新
                    sql = "update UserInfo_Tbl set password='" + TextBox3.Text + "' where id='" + Session["id"].ToString() + "' and del=0";
                    int renum = db.ExecuteSql(sql);
                    if (renum == 1)
                    {
                        //成功
                        wb.Alert("密码修改成功！");
                    }
                    else
                    {
                        wb.Alert("修改密码失败，请刷新重试！");
                    }