userFindPwd.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;

using System.Text;
using System.Windows.Forms;
using System.Text.RegularExpressions;

namespace invite_bids
{
    public partial class userFindPwd : Form
    {
        public userFindPwd()
        {
            InitializeComponent();
        }

        private void btnOk_Click(object sender, EventArgs e)
        {
            if (!Regex.IsMatch(txt_uemail.Text.Trim(), @"^\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$", RegexOptions.IgnoreCase))
            {
                MessageBox.Show("邮箱格式验证错误，请仔细检查！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error); txt_uemail.Focus(); return;
            }
            if (txtUname.Text.Trim() == string.Empty)
            {
                MessageBox.Show("用户名不能为空！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
                txtUname.Focus(); return;

            }
            Tb_User tb_user=new Tb_User();
            DataTable dtb = tb_user.getDateTableByName(txtUname.Text.Trim());
            if (dtb.Rows.Count > 0)
            {
                if (dtb.Rows[0]["userEmail"].ToString() == txt_uemail.Text.Trim())
                {
                    //先产生随机密码
                    Random rdm = new Random();
                    string newPwd = string.Empty;
                    for (int i = 0; i < 6; i++)
                    {
                        newPwd += rdm.Next(0, 9).ToString();
                    }
                    
                    
                    //发送邮件  goto:继续监测

                    string emlto = txt_uemail.Text.Trim();
                    string emlSubject = "找回密码";
                    string emlBody = "你的新密码为:【"+newPwd+"】  为了确保数据安全请尽快修改密码！";
                    System.Collections.ArrayList lst = new System.Collections.ArrayList();
                    Ericbai.TestEmail eml = new Ericbai.TestEmail(emlto, emlSubject, emlBody, lst);
                     
                    btnOk.Enabled = false ;

                    if (eml.SendMail())
                    {
                        if (tb_user.updateUser(" userPwd ",Ericbai.EncryptSystem.Encrypt(newPwd),txtUname.Text.Trim()))
                        {