frmchangepwd.cs

企业短信群发系统

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

namespace SMS.Forms
{
    public partial class frmChangePwd : Form
    {
        private static frmChangePwd changepwd;//声明一个私有变量，用来保存唯一的窗体实例
        public frmChangePwd()
        {
            InitializeComponent();
        }

       //提供一个静态的方法，此方法是用来判断何时实例化窗体，
        public static frmChangePwd Instance()
        {
            if (changepwd == null)
                changepwd = new frmChangePwd();
            return changepwd;
        }

        private void frmChangePwd_FormClosing(object sender, FormClosingEventArgs e)
        {
            changepwd.Dispose(true);
            changepwd = null;
        }

        private void pictureBox1_Click(object sender, EventArgs e)
        {
            if (textBox1.Text == "")
            {
                MessageBox.Show("密码不能位空");
            }
            else
            {
                if (textBox2.Text == "" || textBox2.Text != textBox1.Text)
                {
                    MessageBox.Show("两次密码不一致");
                }
                else
                {
                    OleDbConnection conn = BaseClass.ConnClass.DataConn();
                    conn.Open();
                    OleDbCommand cmd = new OleDbCommand("update tb_Admin set [AdminUserPwd]='" + textBox1.Text + "'", conn);
                    cmd.ExecuteNonQuery();
                    conn.Close();
                    if (MessageBox.Show("密码修改成功", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning) == DialogResult.OK)
                    {
                        this.Close();
                    }
                }
            }
        }

        private void pictureBox2_Click(object sender, EventArgs e)
        {
            changepwd.Dispose(true);
            changepwd = null;
            changepwd.Close();
        }
    }
}