实例介绍
【实例简介】
winform程序，数据库为sqlserver 2008 r2，小型超市管理系统，具有购物，商品结算，查看购物车，商品管理，雇员管理，供应商管理，商品进货、销售统计等功能
【实例截图】
【核心代码】
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;
using System.Collections;
using System.IO;
namespace Shop
{
public partial class MainForm : Form
{
public MainForm()
{
InitializeComponent();
}
SqlHelp sqlh = new SqlHelp();
DataSet ds = null;
string[,] goodsinfo = new string[1,2];
ArrayList cart = new ArrayList();//存放商品
int record = 0;//记录商品序列
int detail_record = 0;//用于记录详细商品时的序列号
int[] need_minus_record =new int[6];//记录1-6商品的序列
int rowsCount = 0;
int showdetail_record = 0;
AutoSizeFormClass asc = new AutoSizeFormClass();
private void MainForm_Load(object sender, EventArgs e)
{
string sql = "select * from goodsinfo where IsSoling='1'";
ds = new DataSet();
ds = sqlh.GetDataSet(sql, "goods");
showgoods();
}
private void btn_find_Click(object sender, EventArgs e)
{
string textmess = tb_find.Text;
string sql = "select * from goodsinfo where GoodsName like '%" textmess "%'";
ds = new DataSet();
ds = sqlh.GetDataSet(sql,"goods");
showgoods();
}
public void showgoods()//加载商品信息
{
rowsCount = ds.Tables["goods"].Rows.Count;
if (rowsCount==0)
{
MessageBox.Show("查不到此商品哟！","友情提示");
return;
}
if (record <rowsCount)
{
lb_goods_1.Text =Convert.ToString(ds.Tables["goods"].Rows[record].ItemArray[2]);
MemoryStream ms = new MemoryStream((byte[])ds.Tables["goods"].Rows[record].ItemArray[8]);
pic_1.Image = Image.FromStream(ms, true);
need_minus_record[0] = record;
record ;
record = record % rowsCount;
}
if (record < rowsCount)
{
lb_goods_2.Text = Convert.ToString(ds.Tables["goods"].Rows[record].ItemArray[2]);
MemoryStream ms = new MemoryStream((byte[])ds.Tables["goods"].Rows[record].ItemArray[8]);
pic_2.Image = Image.FromStream(ms, true);
need_minus_record[1] = record;
record ;
record = record % rowsCount;
}
if (record < rowsCount)
{
lb_goods_3.Text = Convert.ToString(ds.Tables["goods"].Rows[record].ItemArray[2]);
MemoryStream ms = new MemoryStream((byte[])ds.Tables["goods"].Rows[record].ItemArray[8]);
pic_3.Image = Image.FromStream(ms, true);
need_minus_record[2] = record;
record ;
record = record % rowsCount;
}
if (record < rowsCount)
{
lb_goods_4.Text = Convert.ToString(ds.Tables["goods"].Rows[record].ItemArray[2]);
MemoryStream ms = new MemoryStream((byte[])ds.Tables["goods"].Rows[record].ItemArray[8]);
pic_4.Image = Image.FromStream(ms, true);
need_minus_record[3] = record;
record ;
record = record % rowsCount;
}
if (record < rowsCount)
{
lb_goods_5.Text = Convert.ToString(ds.Tables["goods"].Rows[record].ItemArray[2]);
MemoryStream ms = new MemoryStream((byte[])ds.Tables["goods"].Rows[record].ItemArray[8]);
pic_5.Image = Image.FromStream(ms, true);
need_minus_record[4] = record;
record ;
record = record % rowsCount;
}
if (record < rowsCount)
{
lb_goods_6.Text = Convert.ToString(ds.Tables["goods"].Rows[record].ItemArray[2]);
MemoryStream ms = new MemoryStream((byte[])ds.Tables["goods"].Rows[record].ItemArray[8]);
pic_6.Image = Image.FromStream(ms, true);
need_minus_record[5] = record;
record ;
record = record % rowsCount;
}
}
public void showDetailsgoods(int place)//显示详细信息
{
this.panel1.Visible = true;
lb_detail_goodsID.Text= ds.Tables["goods"].Rows[place].ItemArray[1].ToString();
lb_detail_goodsName.Text = ds.Tables["goods"].Rows[place].ItemArray[2].ToString();
lb_detail_goodsdetail.Text = ds.Tables["goods"].Rows[place].ItemArray[3].ToString();
lb_detail_manufacturer.Text = ds.Tables["goods"].Rows[place].ItemArray[4].ToString();
lb_detail_num.Text= ds.Tables["goods"].Rows[place].ItemArray[5].ToString();
lb_detail_price.Text = ds.Tables["goods"].Rows[place].ItemArray[6].ToString();
MemoryStream ms = new MemoryStream((byte[])ds.Tables["goods"].Rows[place].ItemArray[8]);
pic_show.Image = Image.FromStream(ms, true);
}
public bool jionInScart(Label goodsname)//加入购物车
{
SqlHelp.ispaid = 0;
goodsinfo = new string[1, 2];
int i = 0;
bool flag = false;
foreach (string[,] details in cart)
{
if (details[0,0]==goodsname.Text)
{
details[0,1] = Convert.ToString(Convert.ToInt32(details[0,1]) 1);
cart.RemoveAt(i);
cart.Insert(i, details);
flag = true;
break;
}
i ;
}
if (flag)
{
return true;
}
goodsinfo[0,0]= goodsname.Text;
goodsinfo[0,1] ="1";
cart.Add(goodsinfo);
tssl_num.Text = cart.Count.ToString();
return true;
}
private void btn_back_Click(object sender, EventArgs e)//返回
{
this.panel1.Visible = false;
}
private void btn_jion_Click(object sender, EventArgs e)//按钮-加入购物车
{
if (jionInScart(lb_detail_goodsName))
{
MessageBox.Show("加入成功！");
}
else {
MessageBox.Show("加入成功！");
}
}
/// <summary>
/// 点击显示详细信息
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
#region
private void lb_goods_1_Click(object sender, EventArgs e)
{
detail_record= need_minus_record[0];
showDetailsgoods(detail_record);
}
private void pic_1_Click(object sender, EventArgs e)
{
detail_record = need_minus_record[0];
showDetailsgoods(detail_record);
}
private void lb_goods_2_Click(object sender, EventArgs e)
{
detail_record = need_minus_record[1];
showDetailsgoods(detail_record);
}
private void pic_2_Click(object sender, EventArgs e)
{
detail_record = need_minus_record[1];
showDetailsgoods(detail_record);
}
private void lb_goods_3_Click(object sender, EventArgs e)
{
detail_record = need_minus_record[2];
showDetailsgoods(detail_record);
}
private void pic_3_Click(object sender, EventArgs e)
{
detail_record = need_minus_record[2];
showDetailsgoods(detail_record);
}
private void lb_goods_4_Click(object sender, EventArgs e)
{
detail_record = need_minus_record[3];
showDetailsgoods(detail_record);
}
private void pic_4_Click(object sender, EventArgs e)
{
detail_record = need_minus_record[3];
showDetailsgoods(detail_record);
}
private void lb_goods_5_Click(object sender, EventArgs e)
{
detail_record = need_minus_record[4];
showDetailsgoods(detail_record);
}
private void pic_5_Click(object sender, EventArgs e)
{
detail_record = need_minus_record[4];
showDetailsgoods(detail_record);
}
private void lb_goods_6_Click(object sender, EventArgs e)
{
detail_record = need_minus_record[5];
showDetailsgoods(detail_record);
}
private void pic_6_Click(object sender, EventArgs e)
{
detail_record = need_minus_record[5];
showDetailsgoods(detail_record);
}
#endregion
/// <summary>
/// 点击加入购物车
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
#region
private void pic_add_1_Click(object sender, EventArgs e)
{
if (jionInScart(lb_goods_1))
{
MessageBox.Show("加入成功！");
}
else
{
MessageBox.Show("加入成功！");
}
}
private void pic_add_2_Click(object sender, EventArgs e)
{
if (jionInScart(lb_goods_2))
{
MessageBox.Show("加入成功！");
}
else
{
MessageBox.Show("加入成功！");
}
}
private void pic_add_3_Click(object sender, EventArgs e)
{
if (jionInScart(lb_goods_3))
{
MessageBox.Show("加入成功！");
}
else
{
MessageBox.Show("加入成功！");
}
}
private void pic_add_4_Click(object sender, EventArgs e)
{
if (jionInScart(lb_goods_4))
{
MessageBox.Show("加入成功！");
}
else
{
MessageBox.Show("加入成功！");
}
}
private void pic_add_5_Click(object sender, EventArgs e)
{
if (jionInScart(lb_goods_5))
{
MessageBox.Show("加入成功！");
}
else
{
MessageBox.Show("加入成功！");
}
}
private void pic_add_6_Click(object sender, EventArgs e)
{
if (jionInScart(lb_goods_6))
{
MessageBox.Show("加入成功！");
}
else
{
MessageBox.Show("加入成功！");
}
}
#endregion
private void btn_showcart_Click(object sender, EventArgs e)//查看购物车
{
if (SqlHelp.username == "")
{
LoginForm logform = new LoginForm();
logform.ShowDialog();
}
else
{
int i = 0;
string sql = "";
sql = "delete cart where CustoName='" tssl_username.Text "'";
sqlh.Getsqlcom(sql);
foreach (string[,] detail in cart)
{
string name = detail[i,0].ToString();
string num = detail[i,1].ToString();
string price = "";
sql = "select * from goodsinfo where GoodsName='" name "'";
SqlDataReader reader = sqlh.GetComRead(sql);
if (reader.Read())
{
price = reader["GoodsPrice"].ToString();
}
reader.Close();
string total = Convert.ToString(Convert.ToDouble(price) * Convert.ToDouble(num));
sql = "insert into cart(CustoName,GoodsName,GoodsPrice,GoodsNum,TotalMoney,CreatingTime) ";
sql = "values('" tssl_username.Text "','" name "','" price "','" num "','" total "','" System.DateTime.Now "')";
sqlh.Getsqlcom(sql);
}
cartForm cartform = new cartForm();
cartform.Show();
}
}
private void btn_balance_Click(object sender, EventArgs e)//结算
{
if (SqlHelp.username == "")
{
LoginForm logform = new LoginForm();
logform.ShowDialog();
}
else
{
string sql = "";
SqlDataReader reader = null;
int i = 0;
sql = "delete cart where CustoName='" tssl_username.Text "'";
sqlh.Getsqlcom(sql);
foreach (string[,] detail in cart)
{
string name = detail[i, 0].ToString();
string num = detail[i, 1].ToString();
string price = "";
sql = "select * from goodsinfo where GoodsName='" name "'";
reader = sqlh.GetComRead(sql);
if (reader.Read())
{
price = reader["GoodsPrice"].ToString();
}
reader.Close();
string total = Convert.ToString(Convert.ToDouble(price) * Convert.ToDouble(num));
sql = "insert into cart(CustoName,GoodsName,GoodsPrice,GoodsNum,TotalMoney,CreatingTime) ";
sql = "values('" tssl_username.Text "','" name "','" price "','" num "','" total "','" System.DateTime.Now "')";
sqlh.Getsqlcom(sql);
}
sql = " select SUM(cast(TotalMoney as float)) from cart where CustoName = '" tssl_username.Text "'";
reader = sqlh.GetComRead(sql);
if (reader.Read())
{
SqlHelp.needPay = reader[0].ToString();
}
reader.Close();
PayForm payform = new PayForm();
payform.ShowDialog();
}
}
private void timer1_Tick(object sender, EventArgs e)
{
if (SqlHelp.username!="")
{
tssl_username.Text = SqlHelp.username;
// MessageBox.Show("欢迎" tssl_username.Text "的到来！");
//timer1.Enabled = false;
menuStrip1.Enabled = false;
}
if (SqlHelp.power!=""&&SqlHelp.power!="2")
{
this.Hide();
}
if (cart.Count > 0)
{
string[,] show_detail = (string[,])cart[(showdetail_record % cart.Count)];
tssl_detail_show.Text = show_detail[0, 0] " " show_detail[0, 1];
showdetail_record ;
}
else
{
tssl_num.Text = "0";
tssl_detail_show.Text = "无" ;
}
if (SqlHelp.ispaid==1)//已支付完成
{
cart.Clear();
}
}
#region//从购物车里减去
private void pic_minus_1_Click(object sender, EventArgs e)
{
if (outcart(lb_goods_1))
{
MessageBox.Show("操作成功！");
}
else
{
MessageBox.Show("购物车里无此商品！");
}
}
private void pic_minus_2_Click(object sender, EventArgs e)
{
if (outcart(lb_goods_2))
{
MessageBox.Show("操作成功！");
}
else
{
MessageBox.Show("购物车里无此商品！");
}
}
private void pic_minus_3_Click(object sender, EventArgs e)
{
if (outcart(lb_goods_3))
{
MessageBox.Show("操作成功！");
}
else
{
MessageBox.Show("购物车里无此商品！");
}
}
private void pic_minus_4_Click(object sender, EventArgs e)
{
if (outcart(lb_goods_4))
{
MessageBox.Show("操作成功！");
}
else
{
MessageBox.Show("购物车里无此商品！");
}
}
private void pic_minus_5_Click(object sender, EventArgs e)
{
if (outcart(lb_goods_5))
{
MessageBox.Show("操作成功！");
}
else
{
MessageBox.Show("购物车里无此商品！");
}
}
private void pic_minus_6_Click(object sender, EventArgs e)
{
if (outcart(lb_goods_6))
{
MessageBox.Show("操作成功！");
}
else
{
MessageBox.Show("购物车里无此商品！");
}
}
public bool outcart(Label goodsname)//从购物车里减去
{
goodsinfo = new string[1, 2];
int i = 0;
bool flag = false;
foreach (string[,] details in cart)
{
if (details[0, 0] == goodsname.Text)
{
details[0, 1] = Convert.ToString(Convert.ToInt32(details[0, 1]) - 1);
if (details[0, 1] == "0")
{
cart.RemoveAt(i);
flag = true;
break;
}
else
{
cart.RemoveAt(i);
cart.Insert(i, details);
flag = true;
break;
}
}
i ;
}
if (flag)
{
return true;
}
else
{
return false;
}
}
#endregion
private void 登录ToolStripMenuItem_Click(object sender, EventArgs e)
{
LoginForm loginform = new LoginForm();
loginform.ShowDialog();
}
private void 注册ToolStripMenuItem_Click(object sender, EventArgs e)
{
RegisterForm reg = new RegisterForm();
reg.Show();
}
private void pic_pro_Click(object sender, EventArgs e)//主页面-上一页
{
record = record - 12;
if (record<0)
{
record = 0;
}
showgoods();
}
private void pic_next_Click(object sender, EventArgs e)//主页面-下一页
{
showgoods();
}
private void pic_detail_pro_Click(object sender, EventArgs e)//详细页面-上一个
{
detail_record--;
if (detail_record<0)
{
detail_record = 0;
}
showDetailsgoods(detail_record);
}
private void pic_detail_next_Click(object sender, EventArgs e)//详细页面-下一个
{
detail_record ;
detail_record = detail_record % rowsCount;
showDetailsgoods(detail_record);
}
private void MainForm_SizeChanged(object sender, EventArgs e)
{
asc.controlAutoSize(this);
}
}
}
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