leavingdetails.aspx.cs

酒店管理 主要实现了基础设施管理（客房管理、客房类型管理）、业务管理（入住、退房、数据库切换） 本系统简单明了,适合初学者学习,采用三层加抽象工厂实现

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

using System.IO;
using BLL;
using Model;

public partial class LeavingDetails : System.Web.UI.Page
{
    private RoomOperatorBLL roomOp = new RoomOperatorBLL();
    private const string path = "Operator.log";
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            if (Request.QueryString["roomId"] != null)
            {
                int id = int.Parse(Request.QueryString["roomId"].ToString());
                ViewState.Add("roomId", id);//将房间编号添加到 ViewState 中防止在本页面丢失
                SetDataFormURL(id);
            }
        }
    }

    /// <summary>
    /// 从URL 参数中获得的编号查询出房间信息
    /// </summary>
    /// <param name="id"></param>
    private void SetDataFormURL(int id)
    {
        if (id > 0)
        {
            Room room = roomOp.GetRoomByRoomID(id);
            if (room != null)
            {
                this.lbl_roomNumber.Text = room.Roomnumber;
                this.lbl_Type.Text = room.TypeId.Typename;
                this.lbl_Money.Text = "￥" + room.TypeId.Typeprice.ToString();
            }
        }
    }
    protected void txt_payMoney_TextChanged(object sender, EventArgs e)
    {
        string money = this.txt_payMoney.Text;
        string must_pay = this.lbl_Money.Text;
        if (must_pay.Contains("￥"))
           must_pay = must_pay.Remove(must_pay.IndexOf("￥"), 1);
       if (!string.IsNullOrEmpty(money) && !string.IsNullOrEmpty(must_pay))
       {
           int pay_int = 0; //初始化
           double pay_double = 0.0d;
           int pay_must = int.Parse(must_pay);
           if (money.IndexOf(".") != -1)//如果付款中带有小数点
           {
               pay_double = double.Parse(money);//则使用 double 转换否则使用 int 转换
               this.lbl_backMoney.Text = "￥" + Convert.ToString(Math.Round(pay_double - pay_must, 2)) + "元";
           }
           else
           {
               pay_int = int.Parse(money);
               this.lbl_backMoney.Text = "￥" + Convert.ToString(pay_int - pay_must) + "元";
           }
       }
       if (string.IsNullOrEmpty(money))
           lbl_backMoney.Text = "";
    }
    protected void imgBtn_Balance_Click(object sender, ImageClickEventArgs e)
    {
        string money = lbl_backMoney.Text;
        string error = string.Empty;
        
        if (money.Contains("￥")) //如果找还中带有人民币符号则删除,
            money = money.Remove(money.IndexOf("￥"), 1);
        if (money.Contains("元"))//如果找还中还带有元的字样也进行删除操作
            money = money.Remove(money.IndexOf("元"), 1);

        if (!string.IsNullOrEmpty(money))
        {
            try
            {
                if (money.IndexOf(".") == -1)//如果不带小数点则用 int 转换并判断是否小于0
                {
                    if (int.Parse(money) < 0)
                        error = "您的金额不足!!";
                }
                else
                {
                    if (double.Parse(money) < 0)//如果带小数点则用 double 转换并判断是否小于0
                        error = "您的金额不足!!";
                }
                if (!string.IsNullOrEmpty(error))//如果有错误则提示
                {
                    Response.Write("<script>alert('" + error + "')</script>");
                    if (ViewState["roomId"] != null)
                        Server.Transfer("~/LeavingDetails.aspx?roomId=" + ViewState["roomId"].ToString());
                }
                else
                {
                    if (ViewState["roomId"] != null)
                    {
                        int id = int.Parse(ViewState["roomId"].ToString());
                        Room room = roomOp.GetRoomByRoomID(id);//按房间编号查询房间信息
                        if (room != null)
                        {
                            room.Guessnumber = 0;//修改入住人数为0
                            room.State = "空闲";//修改房间状态为空闲
                            if (roomOp.ModifyValuesFormRoom(room)) //如果修改成功
                            {
                                PrintLog(room);
                                Response.Write("<script>javascript:window.close()</script>");//关闭当前窗口
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                Response.Write("<script>alert('" + ex.Message + ex.StackTrace + "')</script>");
            } 
        }
    }

    /// <summary>
    /// 打印日志信息
    /// </summary>
    /// <param name="temp"></param>

    private void PrintLog(Room temp)
    {
        if (temp != null)
        {
            string info = "房间号:" + temp.Roomnumber + " 操作员:" + DropDownList1.Text + " 时间:" + DateTime.Now.ToString() + " 收银:" + lbl_Money.Text + "元";
            StreamWriter writer = null;
            if (!File.Exists(path))//判断文件是否存在,如果存在则直接追加
            {
                FileStream stream = File.Create(path);
                stream.Close();
                writer = new StreamWriter(path);
                writer.WriteLine(info);
                writer.Close();
            }
            else
            {
                writer = File.AppendText(path);
                writer.WriteLine(info);
                writer.Close();
            }
        }
    }
}