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【源代码的实现】
登录模块
登录模块根据用户角色不同在登陆成功以后被赋予相应的操作权限，对管理系统有对进货商品的录入、销售商品的录入等一些操作权限。 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 System.Data.SqlClient;
namespace csharp {
public partial class Form1 : Form {
public Form1() {
InitializeComponent(); }
private void button2_Click(object sender, EventArgs e) {
}
private void button1_Click(object sender, EventArgs e) {
SqlConnection con = new
SqlConnection(\); con.Open(); SqlDataAdapter da = new SqlDataAdapter(\* from log where name='\ + textBox1.Text.Trim() + \ + textBox2.Text.Trim() + \, con); DataSet ds = new DataSet(); da.Fill(ds);
if (ds.Tables[0].Rows.Count == 0) {
MessageBox.Show(\用户名和密码有误.请重新输入\, \系统提示\, MessageBoxButtons.OK, MessageBoxIcon.Error); return; }
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else {
MessageBox.Show(\登陆成功,欢迎进入！\, \系统提示\, MessageBoxButtons.OK, MessageBoxIcon.Information); Form2 f2= new Form2(); f2.Show(); this.Hide(); } }
private void label3_Click(object sender, EventArgs e) {
Form10 f10 =new Form10(); f10.Show(); this.Hide(); }
private void Form1_Load(object sender, EventArgs e) {
} } }
登陆主窗体模块
进入主窗口时，用户可以依据自己的交易选择不同的窗口进行操作。 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;
namespace csharp {
public partial class Form2 : Form {
public Form2() {
InitializeComponent(); }
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private void label1_Click(object sender, EventArgs e) {
}
private void 基本档案BToolStripMenuItem_Click(object sender, EventArgs e)
{
Form3 f3 = new Form3(); f3.Show(); this.Hide(); }
private void 进货管理CToolStripMenuItem_Click(object sender, EventArgs e)
{
Form4 f4 = new Form4(); f4.Show(); this.Hide(); }
private void 销售管理SToolStripMenuItem_Click(object sender, EventArgs e)
{
Form5 f5= new Form5(); f5.Show(); this.Hide(); }
private void 库存管理DToolStripMenuItem_Click(object sender, EventArgs e)
{
Form6 f6 = new Form6(); f6.Show(); this.Hide(); }
private void 供应商信息ToolStripMenuItem_Click(object sender, EventArgs e)
{
Form8 f8 = new Form8(); f8.Show();
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this.Hide(); }
private void 系统维护KToolStripMenuItem_Click_1(object sender, EventArgs e)
{
Form6 f6 = new Form6(); f6.Show(); this.Hide(); }
private void label1_Click_1(object sender, EventArgs e) {
}
private void button1_Click(object sender, EventArgs e) {
Form9 f9 = new Form9(); f9.Show(); this.Hide(); }
private void button2_Click(object sender, EventArgs e) {
Form1 f1=new Form1(); f1.Show(); this.Hide(); }
private void 意见反馈ToolStripMenuItem_Click(object sender, EventArgs e) {
Form11 f11 = new Form11(); f11.Show(); this.Hide(); ; }
private void Form2_Load(object sender, EventArgs e) {
} } }
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