分层开发
相信做了这么多小项目了，我们分析题的能力有了吧，接下来我们先来看看这个项目的需求
（1）该软件系统能涵盖酒店现有的房间入住服务业务
（2）让顾客可以查询酒店提供的房间类型，价位和空闲房间的信息，从而减少顾客和前台的沟通时间成本
案例覆盖技能点：
（1）分层开发思想（2）搭建三层架构（3）ADO.NET中存储过程的使用（4）实体类的使用（5）异常处理
问题分析：
（1）房间入住登记的功能（2）基础信息的维护功能（3）入住查看功能（4）退房功能（5）房间状态查看功能
先看看效果：
房间管理效果图：
顾客入住登记效果图：
查看入住和退房效果图：
分析完这个，你的脑袋里有没有一个简单的图，接下来要开始写代码了。
首先创建实体类
/// <summary>
/// 房间信息 Model
/// </summary>
public class GuestRecord
{
private int guestID; //顾客的ID
public int GuestID
{
get { return guestID; }
set { guestID = value; }
}
private string identityID;//身份证号
public string IdentityID
{
get { return identityID; }
set { identityID = value; }
}
private string guestName;//顾客姓名
public string GuestName
{
get { return guestName; }
set { guestName = value; }
}
private int roomID; //房间ID
public int RoomID
{
get { return roomID; }
set { roomID = value; }
}
private int resideID; //入住状态ID
public int ResideID
{
get { return resideID; }
set { resideID = value; }
}
private DateTime resideDate; //入住日期
public DateTime ResideDate
{
get { return resideDate; }
set { resideDate = value; }
}
private DateTime leaveDate; //退房日期
public DateTime LeaveDate
{
get { return leaveDate; }
set { leaveDate = value; }
}
private decimal deposit; //押金
public decimal Deposit
{
get { return deposit; }
set { deposit = value; }
}
private decimal totalMoney; //房款
public decimal TotalMoney
{
get { return totalMoney; }
set { totalMoney = value; }
}
}
/// <summary>
/// 入住状态Model
/// </summary>
public class ResideState
{
private int resideId; //房间状态ID
public int ResideId
{
get { return resideId; }
set { resideId = value; }
}
private string resideName; //入住状态
public string ResideName
{
get { return resideName; }
set { resideName = value; }
}
}
/// <summary>
/// 房间信息描述Model
/// </summary>
public class Room
{
private int roomID;
public int RoomID
{
get { return roomID; }
set { roomID = value; }
}
private int bedNum;
public int BedNum
{
get { return bedNum; }
set { bedNum = value; }
}
private string description;
public string Description
{
get { return description; }
set { description = value; }
}
private int roomStateID;
public int RoomStateID
{
get { return roomStateID; }
set { roomStateID = value; }
}
private int guestNum;
public int GuestNum
{
get { return guestNum; }
set { guestNum = value; }
}
private int roomTypeID;
public int RoomTypeID
{
get { return roomTypeID; }
set { roomTypeID = value; }
}
}
/// <summary>
/// 房间状态 Model
/// </summary>
public class RoomState
{
private int roomStateID;
public int RoomStateID
{
get { return roomStateID; }
set { roomStateID = value; }
}
private string roomStateName;
public string RoomStateName
{
get { return roomStateName; }
set { roomStateName = value; }
}
}
/// <summary>
/// 房间类型 Model
/// </summary>
public class RoomType
{
private int typeID;
public int TypeID
{
get { return typeID; }
set { typeID = value; }
}
private string typeName;
public string TypeName
{
get { return typeName; }
set { typeName = value; }
}
private decimal typePrice;
public decimal TypePrice
{
get { return typePrice; }
set { typePrice = value; }
}
}
数据访问层DAL：
/// <summary>
/// 房间信息访问层
/// </summary>
public class GuestRecordDAL
{
//添加客户信息
public bool IGuest(GuestRecord guest)
{
bool flag = false;
string sql = "usp_insertGuestRecord";
CommandType type = CommandType.StoredProcedure;
SqlParameter[] paras =
{
new SqlParameter("@identityID",guest.IdentityID),
new SqlParameter("@guestName",guest.GuestName),
new SqlParameter("@roomID",guest.RoomID),
new SqlParameter("@ResideDate",guest.ResideDate),
new SqlParameter("@deposit",guest.Deposit)
};
int count = SQLHelper.ExecuteNonQuery(sql, type, paras);
if (count > 0)
{
flag = true;
}
return flag;
}
//查询信息
public DataTable SRoom()
{
string sql = @"select GuestId,GuestName,IdentityId,ResideDate,Deposit,ResideName,LeaveDate,TotalMoney,RoomStateName,GuestNum,TypePrice
from GuestRecord,Room,RoomState,ResideState,RoomType
where GuestRecord.ResideID=ResideState.ResideID
and GuestRecord.Roomid=Room.roomid and Room.RoomTypeId=RoomType.TypeId
and room.RoomStateID=RoomState.RoomStateId";
DataTable table = SQLHelper.ExecuteDataTable(sql);
return table;
}
//根据条件查询
public DataTable SRoom(string time1, string time2,int resideid)
{
string sql = @"select GuestId,GuestName,IdentityId,ResideDate,Deposit,ResideName,LeaveDate,TotalMoney,RoomStateName,GuestNum,TypePrice
from GuestRecord,Room,RoomState,ResideState,roomType
where GuestRecord.ResideID=ResideState.ResideID
and GuestRecord.Roomid=Room.roomid and Room.RoomTypeId=RoomType.TypeId
and room.RoomStateID=RoomState.RoomStateId
and ResideDate between '" + time1+ "' and '" + time2 + "' and GuestRecord.Resideid="+resideid+" ";
DataTable table = SQLHelper.ExecuteDataTable(sql);
return table;
}
//修改客户的房间信息
public bool URoom(GuestRecord guest)
{
bool flag = false;
string sql = "refund_Room";
CommandType type = CommandType.StoredProcedure;
SqlParameter[] paras =
{
new SqlParameter("@GuestID",guest.GuestID),
new SqlParameter("@requirePay",guest.TotalMoney),
new SqlParameter("@LeaveDate",guest.LeaveDate)
};
int count= SQLHelper.ExecuteNonQuery(sql,type,paras);
if(count>0)
{
flag = true;
}
return flag;
}
}
一个工具类：
public class MyTool
{
/// <summary>
/// DataSetToList
/// </summary>
/// <typeparam name="T">转换类型</typeparam>
/// <param name="dataSet">数据源</param>
/// <param name="tableIndex">需要转换表的索引</param>
/// <returns></returns>
public List<T> DataTableToList<T>(DataTable dt)
{
//确认参数有效
if (dt == null )
return null;
List<T> list = new List<T>();
for (int i = 0; i < dt.Rows.Count; i++)
{
//创建泛型对象
T _t = Activator.CreateInstance<T>();
//获取对象所有属性
PropertyInfo[] propertyInfo = _t.GetType().GetProperties();
for (int j = 0; j < dt.Columns.Count; j++)
{
foreach (PropertyInfo info in propertyInfo)
{
//属性名称和列名相同时赋值
if (dt.Columns[j].ColumnName.ToUpper().Equals(info.Name.ToUpper()))
{
if (dt.Rows[i][j] != DBNull.Value)
{
info.SetValue(_t, dt.Rows[i][j], null);
}
else
{
info.SetValue(_t, null, null);
}
break;
}
}
}
list.Add(_t);
}
return list;
}
}
/// <summary>
/// 入住状态访问层
/// </summary>
public class ResideStateDAL
{
//查询房间入住状态
public DataTable SRoom()
{
string sql = "select * from ResideState";
DataTable table = SQLHelper.ExecuteDataTable(sql);
return table;
}
}
/// <summary>
/// 房间信息访问层
/// </summary>
/// 描述 房间状态 房间类型
public class RoomDAL
{
//查询房间信息
public DataTable Room()
{
string sql = @"select RoomID, BedNum, RoomStateName, TypeName, Description, GuestNum from Room,RoomType,RoomState where
Room.RoomTypeID=RoomType.TypeId
and Room.RoomStateID=RoomState.RoomStateID";
DataTable table=SQLHelper.ExecuteDataTable(sql);
return table;
}
//根据房间号查询
public DataTable Room(Room room)
{
string sql = @"select RoomID, BedNum, RoomStateName, TypeName, Description, GuestNum from Room,RoomType,RoomState where
Room.RoomTypeID=RoomType.TypeId
and Room.RoomStateID=RoomState.RoomStateID
and RoomID =@roomid";
SqlParameter para = new SqlParameter("@roomid",room.RoomID);
DataTable table = SQLHelper.ExecuteDataTable(sql,para);
return table;
}
//修改房间信息
public bool URoom(Room room)
{
bool flag = false;
string sql = "usp_updateRoom";
CommandType type = CommandType.StoredProcedure;
SqlParameter[] paras =
{
new SqlParameter("@roomID",room.RoomID),
new SqlParameter("@bedNum",room.BedNum),
new SqlParameter("@description",room.Description),
new SqlParameter("@roomTypeID",room.RoomTypeID)
};
int count= SQLHelper.ExecuteNonQuery(sql,type,paras);
if(count>0)
{
flag = true;
}
return flag;
}
//删除房间信息
public bool DRoom(int roomid)
{
bool flag = false;
string sql = "usp_deleteRoomById";
CommandType type = CommandType.StoredProcedure;
SqlParameter para = new SqlParameter("@roomID",roomid);
int count=SQLHelper.ExecuteNonQuery(sql,type,para);
if(count>0)
{
flag = true;
}
return flag;
}
//添加房间信息
public bool IRoom(Room room)
{
bool flag = false;
string sql = "usp_insertRoom";
CommandType type = CommandType.StoredProcedure;
SqlParameter[] paras =
{
new SqlParameter("@bedNum",room.BedNum),
new SqlParameter("@description",room.Description),
new SqlParameter("@roomTypeID",room.RoomTypeID)
};
int count= SQLHelper.ExecuteNonQuery(sql,type,paras);
if(count>0)
{
flag = true;
}
return flag;
}
}
/// <summary>
/// 房间状态访问层
/// </summary>
///入住 空闲 维修
public class RoomStateDAL
{
//查询空闲房间
public List<Room> SRoom()
{
string sql = "select roomid,BedNum from Room where roomstateid=2";
DataTable table =SQLHelper.ExecuteDataTable(sql);
MyTool tool = new MyTool();
return tool.DataTableToList<Room>(table);
}
}
/// <summary>
/// 房间类型访问层
/// </summary>
/// 价格 类型
public class RoomTypeDAL
{
//查询全部房间价格
public DataTable Room()
{
string sql = "select * from RoomType";
DataTable table= SQLHelper.ExecuteDataTable(sql);
return table;
}
//根据房间类型查询
public DataTable Room(RoomType type)
{
string sql = "select * from RoomType where TypeName like '%'+@name+'%'";
SqlParameter para = new SqlParameter("@name",type.TypeName);
DataTable table= SQLHelper.ExecuteDataTable(sql,para);
return table;
}
//插入房间类型
public bool IRoom(RoomType types)
{
bool flag = false;
string sql = "usp_insertRoomType";
CommandType type = CommandType.StoredProcedure;
SqlParameter[] paras =
{
new SqlParameter("@TypeName",types.TypeName),
new SqlParameter("@TypePrice",types.TypePrice)
};
int count= SQLHelper.ExecuteNonQuery(sql,type,paras);
if(count>0)
{
flag = true;
}
return flag;
}
//修改房间类型
public bool URoom(RoomType types)
{
bool flag = false;
string sql = "usp_updateRoomType";
CommandType type = CommandType.StoredProcedure;
SqlParameter[] paras = {
new SqlParameter("@typeID",types.TypeID),
new SqlParameter("@typeName",types.TypeName),
new SqlParameter("@typePrice",types.TypePrice)
};
int count =SQLHelper.ExecuteNonQuery(sql,type,paras);
if(count>0)
{
flag = true;
}
return flag;
}
//删除房间类型
public bool DRoom(int typeid)
{
bool flag = false;
string sql = "usp_deleteRoomTypeById";
CommandType type = CommandType.StoredProcedure;
SqlParameter para = new SqlParameter("@typeID",typeid);
int count=SQLHelper.ExecuteNonQuery(sql,type,para);
if(flag)
{
flag = true;
}
return flag;
}
//查询房间号和入住状态
public List<Room> Romm(int typeid)
{
string sql = "select roomid,roomstateid from room where roomtypeid="+typeid+"";
DataTable table=SQLHelper.ExecuteDataTable(sql);
MyTool tool = new MyTool();
return tool.DataTableToList<Room>(table);
}
}
public static class SQLHelper
{
//用静态的方法调用的时候不用创建SQLHelper的实例
//Execetenonquery
// public static string Constr = "server=HAPPYPIG\\SQLMODEL;database=shooltest;uid=sa;pwd=6375196;";
public static string Constr = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
public static int id;
/// <summary>
/// 执行NonQuery命令
/// </summary>
/// <param name="cmdTxt"></param>
/// <param name="parames"></param>
/// <returns></returns>
public static int ExecuteNonQuery(string cmdTxt, params SqlParameter[] parames)
{
return ExecuteNonQuery(cmdTxt, CommandType.Text, parames);
}
//可以使用存储过程的ExecuteNonquery
public static int ExecuteNonQuery(string cmdTxt, CommandType cmdtype, params SqlParameter[] parames)
{
//判断脚本是否为空 ，直接返回0
if (string.IsNullOrEmpty(cmdTxt))
{
return 0;
}
using (SqlConnection con = new SqlConnection(Constr))
{
using (SqlCommand cmd = new SqlCommand(cmdTxt, con))
{
if (parames != null)
{
cmd.CommandType = cmdtype;
cmd.Parameters.AddRange(parames);
}
con.Open();
return cmd.ExecuteNonQuery();
}
}
}
public static SqlDataReader ExecuteDataReader(string cmdTxt, params SqlParameter[] parames)
{
return ExecuteDataReader(cmdTxt, CommandType.Text, parames);
}
//SQLDataReader存储过程方法
public static SqlDataReader ExecuteDataReader(string cmdTxt, CommandType cmdtype, params SqlParameter[] parames)
{
if (string.IsNullOrEmpty(cmdTxt))
{
return null;
}
SqlConnection con = new SqlConnection(Constr);
using (SqlCommand cmd = new SqlCommand(cmdTxt, con))
{
cmd.CommandType = cmdtype;
if (parames != null)
{
cmd.Parameters.AddRange(parames);
}
con.Open();
//把reader的行为加进来。当reader释放资源的时候，con也被一块关闭
return cmd.ExecuteReader(System.Data.CommandBehavior.CloseConnection);
}
}
public static DataTable ExecuteDataTable(string sql, params SqlParameter[] parames)
{
return ExecuteDataTable(sql, CommandType.Text, parames);
}
//调用存储过程的类，关于(ExecuteDataTable)
public static DataTable ExecuteDataTable(string sql, CommandType cmdType, params SqlParameter[] parames)
{
if (string.IsNullOrEmpty(sql))
{
return null;
}
DataTable dt = new DataTable();
using (SqlDataAdapter da = new SqlDataAdapter(sql, Constr))
{
da.SelectCommand.CommandType = cmdType;
if (parames != null)
{
da.SelectCommand.Parameters.AddRange(parames);
}
da.Fill(dt);
return dt;
}
}
/// <summary>
/// ExecuteScalar
/// </summary>
/// <param name="cmdTxt">第一个参数，SQLServer语句</param>
/// <param name="parames">第二个参数，传递0个或者多个参数</param>
/// <returns></returns>
public static object ExecuteScalar(string cmdTxt, params SqlParameter[] parames)
{
return ExecuteScalar(cmdTxt, CommandType.Text, parames);
}
//可使用存储过程的ExecuteScalar
public static object ExecuteScalar(string cmdTxt, CommandType cmdtype, params SqlParameter[] parames)
{
if (string.IsNullOrEmpty(cmdTxt))
{
return null;
}
using (SqlConnection con = new SqlConnection(Constr))
{
using (SqlCommand cmd = new SqlCommand(cmdTxt, con))
{
cmd.CommandType = cmdtype;
if (parames != null)
{
cmd.Parameters.AddRange(parames);
}
con.Open();
return cmd.ExecuteScalar();
}
}
}
//调用存储过程的DBHelper类（关于ExeceutScalar,包含事务,只能处理Int类型，返回错误号）
public static object ExecuteScalar(string cmdTxt, CommandType cmdtype,SqlTransaction sqltran, params SqlParameter[] parames)
{
if (string.IsNullOrEmpty(cmdTxt))
{
return 0;
}
using (SqlConnection con = new SqlConnection(Constr))
{
int sum = 0;
using (SqlCommand cmd = new SqlCommand(cmdTxt, con))
{
cmd.CommandType=cmdtype;
if (parames != null)
{
cmd.Parameters.AddRange(parames);
}
con.Open();
sqltran = con.BeginTransaction();
try
{
cmd.Transaction = sqltran;
sum=Convert.ToInt32( cmd.ExecuteScalar());
sqltran.Commit();
}
catch (SqlException ex)
{
sqltran.Rollback();
}
return sum;
}
}
}
}
业务逻辑层BLL：
///业务逻辑判断
public class GuestRecordBLL
{
GuestRecordDAL dal = new GuestRecordDAL();
//增加
public bool IGuest(GuestRecord guest)
{
return dal.IGuest(guest);
}
//查询
public DataTable SRoom()
{
return dal.SRoom();
}
//根据条件查询
public DataTable SRoom(string time1, string time2, int resideid)
{
return dal.SRoom(time1, time2, resideid);
}
//删除
public bool URoom(GuestRecord guest)
{
return dal.URoom(guest);
}
}
public class ResideStateBLL
{
ResideStateDAL dal = new ResideStateDAL();
public DataTable SRoom()
{
return dal.SRoom();
}
}
public class RoomBLL
{
RoomDAL dal = new RoomDAL();
public DataTable Room()
{
return dal.Room();
}
public DataTable Room(Room room)
{
return dal.Room(room);
}
public bool URoom(Room room)
{
return dal.URoom(room);
}
public bool DRoom(int roomid)
{
return dal.DRoom(roomid);
}
public bool IRoom(Room room)
{
return dal.IRoom(room);
}
}
public class RoomStateBLL
{
RoomStateDAL dal = new RoomStateDAL();
public List<Room> SRoom()
{
return dal.SRoom();
}
}
public class RoomTypeBLL
{
RoomTypeDAL dal = new RoomTypeDAL();
public DataTable Room()
{
return dal.Room();
}
public DataTable Room(RoomType type)
{
return dal.Room(type);
}
public bool IRoom(RoomType type)
{
return dal.IRoom(type);
}
public bool URoom(RoomType types)
{
return dal.URoom(types);
}
public bool DRoom(int typeid)
{
return dal.DRoom(typeid);
}
public List<Room> Romm(int typeid)
{
return dal.Romm(typeid);
}
}
表示层UI：
房间管理窗体：
public partial class FrmInfo : Form
{
public FrmInfo()
{
InitializeComponent();
}
RoomBLL bll = new RoomBLL();
Room room = new Room();
RoomTypeBLL tbl = new RoomTypeBLL();
private void FrmInfo_Load(object sender, EventArgs e)
{
cbo01.ValueMember = "TypeId";
cbo01.DisplayMember = "TypeName";
cbo01.DataSource=tbl.Room();
dgvList.DataSource = bll.Room();
}
private void btncx_Click(object sender, EventArgs e)
{
if(txt01.Text=="")
{
dgvList.DataSource = bll.Room();
}
else
{
room.RoomID = Convert.ToInt32(txt01.Text);
dgvList.DataSource = bll.Room(room);
}
}
private void 修改ToolStripMenuItem_Click(object sender, EventArgs e)
{
txt02.Text = dgvList.SelectedRows[0].Cells[1].Value.ToString();
cbo01.Text = dgvList.SelectedRows[0].Cells[3].Value.ToString();
txt03.Text = dgvList.SelectedRows[0].Cells[4].Value.ToString();
}
private void btn02_Click(object sender, EventArgs e)
{
if (txt02.Text == "" || txt03.Text =="")
{
MessageBox.Show("请填写完整的信息");
}
else
{
room.RoomID = Convert.ToInt32(dgvList.SelectedRows[0].Cells[0].Value);
room.BedNum = Convert.ToInt32(txt02.Text);
room.Description = txt03.Text;
room.RoomTypeID = Convert.ToInt32(cbo01.SelectedValue);
bool flag = bll.URoom(room);
if (flag)
{
MessageBox.Show("修改成功");
dgvList.DataSource = bll.Room();
foreach (Control item in gb02.Controls)
{
if (item is TextBox)
{
item.Text = "";
}
cbo01.Text = "标准间";
}
}
}
}
int roomid;
private void 删除ToolStripMenuItem_Click(object sender, EventArgs e)
{
roomid = Convert.ToInt32(dgvList.SelectedRows[0].Cells[0].Value);
bool flag=bll.DRoom(roomid);
if(flag)
{
MessageBox.Show("删除成功");
dgvList.DataSource = bll.Room();
foreach (Control item in gb02.Controls)
{
if (item is TextBox)
{
item.Text = "";
}
cbo01.Text = "标准间";
}
}
}
private void 新增ToolStripMenuItem_Click(object sender, EventArgs e)
{
if (txt02.Text == "" || txt03.Text == "")
{
MessageBox.Show("请填写完整的信息");
}
else
{
room.BedNum = Convert.ToInt32(txt02.Text);
room.Description = txt03.Text;
room.RoomTypeID = Convert.ToInt32(cbo01.SelectedValue);
bool flag = bll.IRoom(room);
if (flag)
{
MessageBox.Show("添加成功");
dgvList.DataSource = bll.Room();
foreach (Control item in gb02.Controls)
{
if (item is TextBox)
{
item.Text = "";
}
cbo01.Text = "标准间";
}
}
}
}
private void 退出ToolStripMenuItem_Click(object sender, EventArgs e)
{
Application.Exit();
}
}
入住信息和退房窗体：
public partial class FrmRoom : Form
{
public FrmRoom()
{
InitializeComponent();
}
ResideStateBLL bll = new ResideStateBLL();
GuestRecordBLL rbl = new GuestRecordBLL();
GuestRecord guest = new GuestRecord();
private void FrmRoom_Load(object sender, EventArgs e)
{
cbo01.Items.Add("全部");
cbo01.SelectedIndex = 0;
cbo01.ValueMember = "ResideId";
cbo01.DisplayMember = "ResideName";
cbo01.DataSource=bll.SRoom();
dgvList.DataSource = rbl.SRoom();
}
private void btn01_Click(object sender, EventArgs e)
{
if (cbo01.Text == "全部")
{
dgvList.DataSource = rbl.SRoom();
}
else
{
string time1 = (dt01.Value).ToString();
string time2 = (dt02.Value).ToString();
int id = Convert.ToInt32(cbo01.SelectedValue);
dgvList.DataSource = rbl.SRoom(time1, time2, id);
}
}
private void btn02_Click(object sender, EventArgs e)
{
guest.GuestID= Convert.ToInt32(dgvList.SelectedRows[0].Cells[0].Value);
guest.LeaveDate = ldate;
guest.TotalMoney = Convert.ToDecimal(txt01.Text);
bool flag =rbl.URoom(guest);
txt01.Text = "";
if (flag)
{
dgvList.DataSource = rbl.SRoom();
}
}
DateTime ldate;
private void dgvList_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
{
if(dgvList.SelectedRows[0].Cells[5].Value.ToString().Trim()=="未结账")
{
DateTime rdate = Convert.ToDateTime(dgvList.SelectedRows[0].Cells[3].Value);
ldate = DateTime.Today;
int day = ldate.Subtract(rdate).Days;
int price = Convert.ToInt32(dgvList.SelectedRows[0].Cells[10].Value);
txt01.Text = (day * price).ToString();
}
else
{
MessageBox.Show("已经结账");
}
}
}
树状结构查看房间状态：
public partial class FrmRType : Form
{
public FrmRType()
{
InitializeComponent();
}
RoomTypeBLL bll = new RoomTypeBLL();
private void FrmRType_Load(object sender, EventArgs e)
{
TreeNode tn = new TreeNode("房间类型");
DataTable table= bll.Room();
foreach (DataRow item in table.Rows)
{
TreeNode node = new TreeNode();
node.Text = item["TypeName"].ToString();
node.Tag = item["TypeId"];
tn.Nodes.Add(node);
}
tvList.Nodes.Add(tn);
}
private void tvList_AfterSelect(object sender, TreeViewEventArgs e)
{
if(tvList.SelectedNode.Level==0)
{
return;
}
if(tvList.SelectedNode.Level==1)
{
int id= Convert.ToInt32(tvList.SelectedNode.Tag);
List<Room> list=bll.Romm(id);
lvList.Items.Clear();
foreach (Room item in list)
{
ListViewItem iten = new ListViewItem();
iten.Text = item.RoomID.ToString();
iten.Tag = item;
lvList.Items.Add(iten);
}
}
}
}
房间类型管理：
public partial class FrmType : Form
{
public FrmType()
{
InitializeComponent();
}
RoomTypeBLL bll = new RoomTypeBLL();
RoomType type = new RoomType();
private void FrmType_Load(object sender, EventArgs e)
{
dgvList.DataSource = bll.Room();
}
private void btncx_Click(object sender, EventArgs e)
{
if(txt01.Text=="")
{
dgvList.DataSource = bll.Room();
}
else
{
type.TypeName = txt01.Text;
dgvList.DataSource = bll.Room(type);
}
}
private void btn02_Click(object sender, EventArgs e)
{
if (txt02.Text == ""||txt03.Text=="")
{
MessageBox.Show("请选择要修改的文本");
}
else
{
type.TypeID = Convert.ToInt32(dgvList.SelectedRows[0].Cells[0].Value);
type.TypeName = txt02.Text;
type.TypePrice = Convert.ToDecimal(txt03.Text);
bool flag = bll.URoom(type);
if (flag)
{
MessageBox.Show("修改成功");
dgvList.DataSource = bll.Room();
foreach (Control item in gb02.Controls)
{
if (item is TextBox)
{
item.Text = "";
}
}
}
}
}
private void 新增ToolStripMenuItem_Click(object sender, EventArgs e)
{
if (txt02.Text == "" || txt03.Text == "")
{
MessageBox.Show("请填写完整的信息");
}
else
{
type.TypeName = txt02.Text;
type.TypePrice = Convert.ToInt32(txt03.Text);
bool flag = bll.IRoom(type);
if (flag)
{
MessageBox.Show("添加成功");
dgvList.DataSource = bll.Room();
foreach (Control item in gb02.Controls)
{
if (item is TextBox)
{
item.Text = "";
}
}
}
}
}
private void 修改ToolStripMenuItem_Click(object sender, EventArgs e)
{
txt02.Text = dgvList.SelectedRows[0].Cells[1].Value.ToString();
txt03.Text= dgvList.SelectedRows[0].Cells[2].Value.ToString();
}
private void 删除ToolStripMenuItem_Click(object sender, EventArgs e)
{
int typeid = Convert.ToInt32(dgvList.SelectedRows[0].Cells[0].Value);
bool flag=bll.DRoom(typeid);
if(flag)
{
MessageBox.Show("删除成功");
dgvList.DataSource = bll.Room();
foreach (Control item in gb02.Controls)
{
if (item is TextBox)
{
item.Text = "";
}
}
}
}
private void 退出ToolStripMenuItem_Click(object sender, EventArgs e)
{
Application.Exit();
}
}
顾客入店登记窗体：
public partial class FrmUser : Form
{
public FrmUser()
{
InitializeComponent();
}
RoomStateBLL bll = new RoomStateBLL();
GuestRecordBLL gbl = new GuestRecordBLL();
private void FrmUser_Load(object sender, EventArgs e)
{
cbo01.DisplayMember = "Roomid";
List<Room> list=bll.SRoom();
foreach (Room item in list)
{
cbo01.Items.Add(item.RoomID+"号房(床位："+item.BedNum+")");
}
}
private void btn01_Click(object sender, EventArgs e)
{
if(txt01.Text==""||txt02.Text==""||txt03.Text=="")
{
MessageBox.Show("请填写完整的信息");
}
else
{
GuestRecord guest = new GuestRecord();
guest.IdentityID = txt01.Text;
guest.GuestName = txt02.Text;
guest.Deposit = Convert.ToDecimal(txt03.Text);
int length=cbo01.Text.IndexOf("号");
guest.RoomID = Convert.ToInt32(cbo01.Text.Substring(0,length));
guest.ResideDate = Convert.ToDateTime(dt01.Text);
bool flag = gbl.IGuest(guest);
if (flag)
{
MessageBox.Show("登记成功");
foreach (Control item in gb01.Controls)
{
if (item is TextBox)
{
item.Text = "";
}
cbo01.Text = "";
dt01.Text = "";
}
cbo01.Items.Clear();
cbo01.DisplayMember = "Roomid";
List<Room> list = bll.SRoom();
foreach (Room item in list)
{
cbo01.Items.Add(item.RoomID + "号房(床位：" + item.BedNum + ")");
}
}
}
}
}
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