【實例簡介】

超市POS收銀系統

前臺收銀用戶名：haiyang 密碼：1

后臺管理用戶名：admin 密碼：1

后臺管理功能主要用：商品分類管理、商品添加、商品修改、商品管理、日匯總、月匯總、年匯總、用戶管理等，配合條碼機、掃描槍、小票打印機等硬件使用，適合超市收銀使用。。

要求必須安裝 office,因為 數據庫用的 access

【實例截圖】

【核心代碼】

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

namespace FOUPOS

{

public partial class Cash : Form

{

POS.Model.FUser m_User = new POS.Model.FUser();

public Cash(POS.Model.FUser fuser)

{

InitializeComponent();

this.m_User = fuser;

}

private int sumCount = 0;

POS.BLL.FGoods b_Goods = new POS.BLL.FGoods();

POS.Model.FGoods m_Goods = new POS.Model.FGoods();

private void Cash_Load(object sender, EventArgs e)

{

skinEngine1.SkinFile = "OneBlue.ssk";

SetlvGoods();

}

#region 在界面Load的時候先設置好標題名和長度.

protected void SetlvGoods()

{

lvGoods.Columns.Add("數量", 60);

lvGoods.Columns.Add("條碼", 170);

lvGoods.Columns.Add("商品名", 210);

lvGoods.Columns.Add("單價", 80);

lvGoods.Columns.Add("金額", 80);

lvGoods.Columns.Add("收銀員", 80);

}

#endregion

private void btnAdd_Click(object sender, EventArgs e)

{

int scount = 1;

if (!string.IsNullOrEmpty(txtNum.Text))

{

if (b_Goods.Exists(txtNum.Text.Trim()))

{

m_Goods = b_Goods.GetModelByNum(txtNum.Text.Trim());

if (lvGoods.Items.Count > 0)

{

bool exist = false;

foreach (ListViewItem checklvi in lvGoods.Items)

{

if (checklvi.SubItems[1].Text == txtNum.Text.Trim())

{

exist = true;

checklvi.SubItems[0].Text = (int.Parse(checklvi.SubItems[0].Text) 1).ToString();

checklvi.SubItems[4].Text = string.Format("{0:F2}", (int.Parse(checklvi.SubItems[0].Text) * m_Goods.SSalePrice));

sumCount = 1;

lblSumMoney.Text = GetSumMoney().ToString();

txtSumMoney.Text = lblSumMoney.Text;

txtShouldGetMoney.Text = lblSumMoney.Text;

lblSumCount.Text = sumCount.ToString();//記錄商品總數

txtNum.Text = "";

return;//跳出button事件之前更新商品總數和txtNum的text屬性

}

}

if (exist == false)

{

ListViewItem lvi = lvGoods.Items.Add(scount.ToString());

lvi.SubItems.Add(m_Goods.SNum);

lvi.SubItems.Add(m_Goods.SName);

lvi.SubItems.Add(string.Format("{0:F2}", m_Goods.SSalePrice));

lvi.SubItems.Add(string.Format("{0:F2}", m_Goods.SSalePrice));

lvi.SubItems.Add(m_User.UName);

sumCount = 1;

}

}

else

{

ListViewItem lvi = lvGoods.Items.Add(scount.ToString());

lvi.SubItems.Add(m_Goods.SNum);

lvi.SubItems.Add(m_Goods.SName);

lvi.SubItems.Add(string.Format("{0:F2}", m_Goods.SSalePrice));

lvi.SubItems.Add(string.Format("{0:F2}", m_Goods.SSalePrice));

lvi.SubItems.Add(m_User.UName);

sumCount = 1;

}

}

}

lblSumMoney.Text = GetSumMoney().ToString();

txtSumMoney.Text = lblSumMoney.Text;

txtShouldGetMoney.Text = lblSumMoney.Text;

lblSumCount.Text = sumCount.ToString();//記錄商品總數

txtNum.Text = "";

}

private void Cash_Activated(object sender, EventArgs e)

{

txtNum.Focus();

}

#region 獲取金額

protected decimal GetSumMoney()

{

decimal summoney = 0;

foreach (ListViewItem checklvi in lvGoods.Items)

{

summoney = decimal.Parse(checklvi.SubItems[4].Text);

}

return summoney;

}

#endregion

private void lvGoods_AfterLabelEdit(object sender, LabelEditEventArgs e)

{

try

{

ListView lv = (ListView)sender;

int a = int.Parse(e.Label);

lv.SelectedItems[0].SubItems[4].Text = (a * decimal.Parse(lv.SelectedItems[0].SubItems[3].Text)).ToString();

lblSumMoney.Text = GetSumMoney().ToString();

txtSumMoney.Text = lblSumMoney.Text;

txtShouldGetMoney.Text = lblSumMoney.Text;

}

catch (Exception ex)

{

e.CancelEdit = true;

MessageBox.Show(ex.Message);

}

}

private void txtGetMoney_Leave(object sender, EventArgs e)

{

try

{

decimal shouldmoney = decimal.Parse(txtShouldGetMoney.Text);

decimal getmoney = decimal.Parse(txtGetMoney.Text);

if (getmoney > shouldmoney)

{

txtReturnMoney.Text = string.Format("{0:F2}", getmoney - shouldmoney);

}

else

{

MessageBox.Show("交來金額小于實收金額。");

}

}

catch

{

MessageBox.Show("數據有誤，請仔細檢查輸入金額。");

}

}

#region 取出精確到毫秒的時間做流水號

protected string GetAccountNum()

{

int year = System.DateTime.Now.Year;

int month = System.DateTime.Now.Month;

int day = System.DateTime.Now.Day;

int hour = System.DateTime.Now.Hour;

int minute = System.DateTime.Now.Minute;

int second = System.DateTime.Now.Second;

int millisecond = System.DateTime.Now.Millisecond;

string num = year.ToString() month.ToString() day.ToString() hour.ToString() minute.ToString() second.ToString() millisecond.ToString();

return num;

}

#endregion

private void button1_Click(object sender, EventArgs e)

{

POS.BLL.FAccount b_Account = new POS.BLL.FAccount();

POS.Model.FAccount m_Account = new POS.Model.FAccount();

m_Account.AccountNum = GetAccountNum();

m_Account.GetMoney = decimal.Parse(txtShouldGetMoney.Text);

m_Account.JoinTime = DateTime.Now;

m_Account.NoGetMoney = 0;

m_Account.SumMoney = decimal.Parse(txtSumMoney.Text);

m_Account.UID = m_User.UID;

b_Account.Add(m_Account);

int id = b_Account.GetMaxID();

POS.Model.FDetail m_Detail = new POS.Model.FDetail();

POS.BLL.FDetail b_Detail = new POS.BLL.FDetail();

m_Detail.AID = id;

foreach (ListViewItem checklvi in lvGoods.Items)

{

m_Detail.GNum = checklvi.SubItems[1].Text;

m_Detail.DCount = int.Parse(checklvi.SubItems[0].Text);

b_Detail.Add(m_Detail);

}

GetClear();

MessageBox.Show("收銀成功。");

}

protected void GetClear()

{

lvGoods.Items.Clear();

lblSumMoney.Text = null;

lblSumCount.Text = null;

txtGetMoney.Text = null;

txtReturnMoney.Text = null;

txtShouldGetMoney.Text = null;

txtSumMoney.Text = null;

}

}

}

總結

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