ViewController/UpdatePwdForm.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

using BookMIS.Model.User;
namespace BookMIS.ViewController
{
    public partial class UpdatePwdForm : Form
    {
        string username = "";
        Form Main = null;
        UserDAO userdao = new UserDAOImpl();
        public UpdatePwdForm()
        {
            InitializeComponent();
        }
        public UpdatePwdForm(string user, Form main)
        {
            InitializeComponent();
            username = user;
            Main = main;
        }

        private void UpdatePwdForm_Load(object sender, EventArgs e)
        {
            txtName.Text = username;
        }

        private void btnOK_Click(object sender, EventArgs e)
        {
            if (txtjPwd.Text == "")
            {
                MessageBox.Show("旧密码不能为空", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                txtjPwd.Focus();
                return;
            }
            if (txtxPwd.Text == "")
            {
                MessageBox.Show("新密码不能为空", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                txtxPwd.Focus();
                return;
            }
            if (txtxPwd.Text != txtxPwdOk.Text)
            {
                MessageBox.Show("再次密码不一致", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                txtxPwd.Focus();
                txtxPwd.SelectAll();
                return;
            }
            if (txtName.Text == "" || userdao.SelectUser(txtName.Text, txtjPwd.Text) == 0)
            {
                MessageBox.Show("对不起,用户不存在,或旧密码不正确", "提示", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                txtName.Focus();
                txtName.SelectAll();
                return;