SjMes/PaintingPrintBarCode/Login.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using MESClassLibrary.BLL.User;
using MESClassLibrary.Model;

namespace PaintingPrintBarCode
{
    public partial class Login : Form
    {
        public Login()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrWhiteSpace(textBox1.Text))
            {
                MessageBox.Show("用户名不能为空!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                textBox1.Focus();
                return;
            }

            if (string.IsNullOrWhiteSpace(textBox2.Text))
            {
                MessageBox.Show("密码不能为空!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                textBox1.Focus();
                return;
            }

            UserBLL bll=new UserBLL();
            UserModel md=new UserModel();

            md.Username = textBox1.Text.Trim();
            md.Password = textBox2.Text.Trim();
            if (!bll.Login(md))
            {
                MessageBox.Show("用户名或密码有误!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                textBox1.Focus();
                return;
            }
            else
            {
                DataTable dt = bll.SearchUserInfoByUserName(md.Username);
                if (dt != null && dt.Rows.Count > 0)
                {
                    Program.UserName = dt.Rows[0]["RealName"].ToString();
                    this.Visible = false;
                    Form fr = new Form1();
                    fr.Show();
                }
                
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.Close();
        }
    }
}