changepasswordform.cs

C#通过读取.txt文档进行运行的小系统

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization;

namespace BikeRentSystem
{
    public partial class ChangePassWordForm : Form
    {
        public ChangePassWordForm()
        {
            InitializeComponent();
        }

        private void returnButton_Click(object sender, EventArgs e)
        {
            this.Close();
            
        }

        private void loadButton_Click(object sender, EventArgs e)
        {
            this.Close();
            PassWordForm passWord = new PassWordForm();
            passWord.Show();
        }

        private void changeButton_Click(object sender, EventArgs e)
        {
            
            
            //读取原始密码
            PassWordForm readPassWord = new PassWordForm();
            string passWord;

            passWord= readPassWord.ReadPassWordInfor();

            //验证输入信息正误
            try
            {
                if (oldTextBox.Text == passWord)
                {

                    if (newFirTextBox.Text != newSecTextBox.Text)
                    {
                        throw new ArgumentNullException();

                    }
                    else
                        MessageBox.Show("修改密码成功，请妥善保管好您的密码", "成功", MessageBoxButtons.OK,
                                 MessageBoxIcon.Information);
                }
                else
                {
                    throw new FormatException();

                }
            }

            catch (ArgumentNullException)
            {
                MessageBox.Show("两次密码不相同，请再次输入，或者返回", "错误", MessageBoxButtons.OK,
                                MessageBoxIcon.Error);
                newFirTextBox.Text = "";
                newSecTextBox.Text = "";


            }
            catch (FormatException)
            {
                MessageBox.Show("原始密码不正确，请勿恶意修改密码", "错误", MessageBoxButtons.OK,
                    MessageBoxIcon.Error);
                newFirTextBox.Text = "";
                newSecTextBox.Text = "";
                oldTextBox.Text = "";

            }            
            
            PassWordClass passWordChanged = new PassWordClass(newSecTextBox.Text);      
            
            //存储相关信息
            BinaryFormatter formatter = new BinaryFormatter();
            FileStream output;

            output = new FileStream("passWord.txt", FileMode.Open, FileAccess.Write);

            PassWordClass newp = new PassWordClass("123456");

            try
            {
                formatter.Serialize(output, passWordChanged);
            }
            catch (IOException)
            {
                MessageBox.Show("点击一次\"确定\"按钮即可", "点击次数过多", MessageBoxButtons.OK,
                MessageBoxIcon.Information);
            }

            //关闭文件
            output.Close(); 
        }

        private void ChangePassWordForm_Load(object sender, EventArgs e)
        {
                  
        }
    }
}