1. 登錄界面的效果圖

GIF.gif

2. 登錄界面實(shí)現(xiàn)的功能描述

該界面主要是為指定的用戶(hù)可以更快更安全的進(jìn)入商超管理系統(tǒng)。用戶(hù)首先選擇登錄用戶(hù)類(lèi)型，然后輸入自己的用戶(hù)名和密碼點(diǎn)擊登錄就可以登錄相應(yīng)的商超系統(tǒng)頁(yè)面。不同的身份類(lèi)型所訪問(wèn)到的頁(yè)面也是不同的

3. 登錄界面各控件的參數(shù)設(shè)置

以列表的方式，列出各個(gè)控件的重要參數(shù)設(shè)置。

label1

label2

label3

Linklabel1

comboBox1

textBox1

textBox2

button1

button2

4. 重要方法描述

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;

namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

    private void button1_Click(object sender, EventArgs e)
    {
        if (this.comboBox1.SelectedItem.ToString() == "收銀員")
        {
            if (this.textBox1.Text == "123456789" && this.textBox2.Text == "123456")
            {
                MessageBox.Show("收銀員登錄成功");
            }
            else
            {
                MessageBox.Show("用戶(hù)名或密碼錯(cuò)誤", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
    }

    private void label3_Click(object sender, EventArgs e)
    {

   }

    private void Form1_Load(object sender, EventArgs e)
    {
        this.comboBox1.SelectedIndex = 0;

    }

    private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        this.comboBox1.SelectedIndex = 0;
    }

    private void textBox1_TextChanged(object sender, EventArgs e)
    {

    }

    private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
    {
        if (e.KeyChar == (char)Keys.Enter)
        {
            SendKeys.Send("{tab}");
        }
    }

    private void textBox2_TextChanged(object sender, EventArgs e)
    {
    }

    private void button2_Click(object sender, EventArgs e)
    {
        Application.Exit();
    }

    private void textBox1_Enter(object sender, EventArgs e)
    {
        ((TextBox)sender).SelectAll();
    }

    private void Form1_KeyPress(object sender, KeyPressEventArgs e)
    {
        if (e.KeyChar == (char)Keys.Enter)
        {
            SendKeys.Send("{tab}");
        }
    }

    private void textBox2_KeyPress(object sender, KeyPressEventArgs e)
    {
        if (e.KeyChar == (char)Keys.Enter)
        {
            SendKeys.Send("{tab}");
        }
    }
    }
}