frm_login.cs

手持式RFID及条码车辆识别系统手持机代码

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


namespace RFID_CAR
{
    public partial class Frm_Login : Form
    {
        public Frm_Login()
        {
            InitializeComponent();
        }

        private void Frm_Login_Load(object sender, EventArgs e)
        {
            UserLogin userlogin = new UserLogin();
            string[] userList = userlogin.get_users();
            
            int i = 0;
            
            for (i = 0; userList[i] != null;i++ )
            {
                this.cbx_Users.Items.Add(userList[i]);
            }

        }

        private void btn_Login_Click(object sender, EventArgs e)
        {
            UserLogin userlogin = new UserLogin();
            if (userlogin.is_valid_user_login(this.cbx_Users.Text, this.txt_Password.Text))
            {
                new Frm_ReadTag(this.cbx_Users.Text).ShowDialog();
                this.Close();
            }
            else 
            {
                MessageBox.Show("密码错误,请重新输入!");
                this.txt_Password.Text = "";
            }
        }

        private void cbx_Users_SelectedIndexChanged(object sender, EventArgs e)
        {
            this.txt_Password.Focus();
        }
    }
}