【C#機房重構】 結賬---儲存過程幫了大忙了！
阿新 • • 發佈：2018-12-30
前言
之前在用vb做機房收費系統的時候，結賬部分呼叫了大量的資料庫中的表，非常之麻煩，這次是用七層的方式進行重構，如果還是按照固有的七個層次去呼叫表，想想就得瘋！最後小編通過查詢資料，利用儲存過程可以減少超多的程式碼量！
所以當我們要操作多個表的時候，我們需要想想儲存過程嘍！
在結賬之前，我們要有流程圖，涉及到幾個表，這個在之前的vb的專案畫過，很麻煩，這裡給一個部落格連結https://blog.csdn.net/jerry11112/article/details/78759788！裡邊有個超大的流程圖！
接下來我們分析，對資料庫的操作無非是增刪改查，我們可以通過儲存過程進行分塊化！
IDAL層
//查詢資訊 DataTable SelectInfo(Entity.SettleCount count);//包含衝值表，退卡表 // 查詢使用者的id DataTable SelectUserInfo(Entity.SettleCount count); //查詢實際總的消費金額 DataTable SelectConsumeCash(Entity.SettleCount count); //更新需要更新的所有表 int updateInfo(Entity.SettleCount count); //同時更新充值表，學生表，退卡表，line表
儲存過程
(不同的@count在UI層執行不同的sql語句)
USE [charge_sys]
GO
/****** Object: StoredProcedure [dbo].[PROC_SettleAccount] Script Date: 2018/8/30 11:08:09 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: 李光
-- Create date: 2018-8
-- Description: Settlaccounts
-- =============================================
ALTER PROCEDURE [dbo].[PROC_SettleAccount]
-- Add the parameters for the stored procedure here
@Count int,
@RechargeCash numeric(10,2),
@CancelCash numeric(10,2),
@ConsumeCash numeric(10,2),
@AllCash numeric(10,2),
@date date,
D層
public class SettleCountDAL:IDAL.SettleCountIDAL
{
public DataTable SelectInfo(Entity.SettleCount count)
{
SqlHelper sqlhelper = new SqlHelper();
SqlParameter[] sqlparams = { new SqlParameter("@UserID",count.UserID),
new SqlParameter("@RechargeCash",count.RechargeCash),
new SqlParameter("@ConsumeCash",count.ConsumeCash),
new SqlParameter("@CancelCash",count.CancelCash),
new SqlParameter("@AllCash",count.AllCash),
new SqlParameter("@date",count.Date),
new SqlParameter("@Count",count.count)
};
string sql = "PROC_SettleAccount";
DataTable dt = sqlhelper.ExecuteQuery(sql, sqlparams, CommandType.StoredProcedure);
return dt;
}
public int updateInfo(Entity.SettleCount count)
{
SqlHelper sqlhelper = new SqlHelper();
SqlParameter[] sqlparams = { new SqlParameter("@UserID",count.UserID),
new SqlParameter("@RechargeCash",count.RechargeCash),
new SqlParameter("@ConsumeCash",count.ConsumeCash),
new SqlParameter("@CancelCash",count.CancelCash),
new SqlParameter("@AllCash",count.AllCash),
new SqlParameter("@date",count.Date),
new SqlParameter("@Count",count.count)
};
string sql = "PROC_SettleAccount";
int result = sqlhelper.ExecuteNonQuery(sql, sqlparams, CommandType.StoredProcedure);
return result;
}
//查詢操作員的使用者id和姓名
public DataTable SelectUserInfo(Entity.SettleCount count)
{
SqlHelper sqlhelper = new SqlHelper();
SqlParameter[] sqlparams = { new SqlParameter("@Level", "操作員") };
string sql = "SELECT * FROM User_Info WHERE [email protected]";
DataTable dt = sqlhelper.ExecuteQuery(sql,sqlparams, CommandType.Text);
return dt;
}
public DataTable SelectConsumeCash(Entity.SettleCount count)
{
SqlHelper sqlhelper = new SqlHelper();
SqlParameter[] sqlparams = { new SqlParameter("@Ischeck", "未結賬") };
string sql = "SELECT sum(consume) FROM Line_Info WHERE [email protected]";
DataTable dt = sqlhelper.ExecuteQuery(sql,sqlparams,CommandType.Text);
return dt;
}
}
UI層
public partial class frmSettleAccounts : Form
{
public frmSettleAccounts()
{
InitializeComponent();
tabControl1.Enabled = false;
}
#region 定義變數
Entity.SettleCount Account = new Entity.SettleCount();
Facade.SettleAountFacade FSettleAcount = new Facade.SettleAountFacade();
Dictionary<string, string> dic = new Dictionary<string, string>(); //定義一個字典
double sumCancel = 0; //計算退卡總金額
double sumRecharge = 0; //計算充值總金額
#endregion
#region 載入窗體
private void frmSettleAccounts_Load(object sender, EventArgs e)
{
//表userinfo
Facade.SettleAountFacade FOpeInfo = new Facade.SettleAountFacade();
DataTable tableOpeinfo = FOpeInfo.selectOpeInfo(Account);
//載入user表中的資料到字典中
for (int i = 0; i < tableOpeinfo.Rows.Count; i++)
{
dic.Add(Convert.ToString(tableOpeinfo.Rows[i]["userID"]), Convert.ToString(tableOpeinfo.Rows[i]["UserName"]));
comboBox1.Items.Add(Convert.ToString(tableOpeinfo.Rows[i]["userID"]));
}
}
#endregion
#region tabControl1空件不同選項卡觸發不同的事件
private void tabControl1_SelectedIndexChanged(object sender, EventArgs e)
{
// Account.UserID= comboBox1.Text.Trim();
Account.RechargeCash = 0;
Account.CancelCash = 0;
Account.ConsumeCash = 0;
Account.AllCash = 0;
Account.Date = "";
#region //觸發充值選項卡
if (tabControl1.SelectedTab.Name == "tabCharge")
{
Account.count = 1;
DataTable dtRecharge = FSettleAcount.selectInfo(Account);
dtgRecharge.DataSource = dtRecharge;
dtgRecharge.Columns["cardno"].HeaderText = "卡號";
dtgRecharge.Columns["addmoney"].HeaderText = "充值金額";
dtgRecharge.Columns["date"].HeaderText = "充值日期";
dtgRecharge.Columns["time"].HeaderText = "充值時間";
sumRecharge = 0;
//求和
if (dtRecharge.Rows.Count > 0)
{
for (int i = 0; i < dtRecharge.Rows.Count; i++)
{
sumRecharge = Convert.ToInt32(dtRecharge.Rows[i]["addmoney"]) + sumRecharge;
Account.RechargeCash = sumRecharge;
}
}
dtgRecharge.AllowUserToAddRows = false;
}
#endregion
//觸發退卡選項卡
if (tabControl1.SelectedTab.Name == "tabCancelCard")
{
Account.count = 2;
DataTable dtCancel = FSettleAcount.selectInfo(Account);
dtgCancelCard.DataSource = dtCancel;
dtgCancelCard.Columns["cardNo"].HeaderText = "卡號";
dtgCancelCard.Columns["CancelCash"].HeaderText = "退還金額";
dtgCancelCard.Columns["Date"].HeaderText = "退卡日期";
dtgCancelCard.Columns["time"].HeaderText = "退卡時間";
sumCancel = 0;
if (dtCancel.Rows.Count > 0)
{
for (int i = 0; i < dtCancel.Rows.Count; i++)
{
sumCancel = Convert.ToInt32(dtCancel.Rows[i]["CancelCash"]) + sumCancel;
Account.CancelCash = sumCancel;
}
}
dtgCancelCard.AllowUserToAddRows = false;
}
//觸發結賬選項卡
if (tabControl1.SelectedTab.Name == "tabAllcash")
{
txtRechargeCash.Text = Convert.ToString(sumRecharge);
txtCancelCash.Text = Convert.ToString(sumCancel);
//計算consumecash
DataTable tableConsumeCash = FSettleAcount.selectConsumeCash(Account);
txtConsumeCash.Text = Convert.ToString(tableConsumeCash.Rows[0][0]);
}
//觸發退出選項卡
if (tabControl1.SelectedTab.Name == "tabExit")
{
this.Close();
}
}
#endregion
//點選使用者id下拉框，出現相應內容
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
Facade.SettleAountFacade FOpeInfo = new Facade.SettleAountFacade();
Account.UserID = comboBox1.Text.Trim();
//通過選中字典中鍵，對映到值
string strvalue;
if (dic.ContainsKey(comboBox1.Text.Trim()))
{
bool result = dic.TryGetValue(comboBox1.Text.Trim(), out strvalue);
if (result == true)
txtUserName.Text = strvalue;
}
tabControl1.Enabled = true;
btnOK.Enabled = true;
}
//結賬按鈕
private void btnOK_Click(object sender, EventArgs e)
{
Account.count = 3;
Account.Date = DateTime.Now.ToShortDateString();
bool flagAccount = FSettleAcount.updateInfo(Account);
if (flagAccount==true)
{
MessageBox.Show("結賬成功");
}
else
{
MessageBox.Show("已經結賬");
btnOK.Enabled = false;
}
}
private void tabAllcash_Click(object sender, EventArgs e)
{
}
}