(深入.Net平台和C#编程)第十章.课程总复习.20170413

==============================================实体==============================================

---------------------------------------车辆类（父类）---------------------------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Car.entity
{
    /// <summary>
    /// 车辆类
    /// </summary>
     public abstract class Vehicle
    {
        /// <summary>
        /// 颜色
        /// </summary>
        public string Color { get; set; }
        /// <summary>
        /// 日租金
        /// </summary>
        public double DailyRent { get; set; }
        /// <summary>
        /// 车牌号
        /// </summary>
        public string LicenseNo { get; set; }
        /// <summary>
        /// 车名
        /// </summary>
        public string Name { get; set; }
        /// <summary>
        /// 租用天数
        /// </summary>
        public int RentDate { get; set; }
        /// <summary>
        /// 租用人
        /// </summary>
        public string RentUser { get; set; }
        /// <summary>
        /// 使用时间
        /// </summary>
        public int YearsOfService { get; set; }

         /// <summary>
         /// 计算总价抽象方法
         /// </summary>
         /// <returns></returns>
        public abstract string Money();

    }
}

---------------------------------------卡车类（子类）---------------------------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Car.entity
{
    /// <summary>
    /// 卡车
    /// </summary>
    public class Truck:Vehicle
    {
        /// <summary>
        /// 载重
        /// </summary>
        public int Load { get; set; }

        /// <summary>
        /// 计算租车总价 (租车时间*该车日租金)
        /// </summary>
        /// <returns></returns>
        public override string Money()
        {
           string money = (base.RentDate * base.DailyRent).ToString();
           return money;
        }
    }
}

---------------------------------------轿车类（子类）---------------------------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Car.entity
{
    /// <summary>
    /// 轿车
    /// </summary>
    public class JCar:Vehicle
    {

        /// <summary>
        /// 计算租车总价 (租车时间*该车日租金)
        /// </summary>
        /// <returns></returns>
        public override string Money()
        {
            string money = (base.RentDate * base.DailyRent).ToString();
            return money;
        }
    }
}

==============================================窗体==============================================

------------------------------------------------------------------------------

using Car.entity;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Car
{
    public partial class frmZuCheSystem : Form
    {
        public frmZuCheSystem()
        {
            InitializeComponent();
        }

        /// <summary>
        /// 可租车集合
        /// </summary>
        Dictionary<string, Vehicle> KeZuChe = new Dictionary<string,Vehicle>();

        /// <summary>
        /// 已经租了的车集合
        /// </summary>
        Dictionary<string, Vehicle> YiZuChe = new Dictionary<string, Vehicle>();


        /// <summary>
        /// 加载事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ZuCheSystem_Load(object sender, EventArgs e)
        {
            Init();
            BangKeZuChe();
        }

        /// <summary>
        /// 初始化可租车列表
        /// </summary>
        public void Init()
        {
            Vehicle vehicle = new JCar();
            vehicle.Color = "黑色";
            vehicle.DailyRent = 200;
            vehicle.LicenseNo = "粤A12345";
            vehicle.Name = "奥迪";
            vehicle.YearsOfService = 2;

            Vehicle vehicle1 = new JCar();
            vehicle1.Color = "银色";
            vehicle1.DailyRent = 200;
            vehicle1.LicenseNo = "粤B22222";
            vehicle1.Name = "宝马";
            vehicle1.YearsOfService = 2;

            Vehicle vehicle2 = new Truck();
            vehicle2.Color = "蓝色";
            vehicle2.DailyRent = 200;
            vehicle2.LicenseNo = "粤C33333";
            vehicle2.Name = "东风";
            ((Truck)vehicle2).Load = 20;
            vehicle2.YearsOfService = 2;

            KeZuChe.Add(vehicle.LicenseNo, vehicle);
            KeZuChe.Add(vehicle1.LicenseNo, vehicle1);
            KeZuChe.Add(vehicle2.LicenseNo, vehicle2);
        }

        /// <summary>
        /// 绑定可租车ListView数据
        /// </summary>
        public void BangKeZuChe()
        {
            //清空ListView
            lvKeZu.Items.Clear();
            //遍历可租车集合 添加到 ListView
            foreach (var item in KeZuChe)
            {
                ListViewItem lvi = new ListViewItem(item.Key);
                lvi.SubItems.Add(item.Value.Name);
                lvi.SubItems.Add(item.Value.Color);
                lvi.SubItems.Add(item.Value.YearsOfService.ToString());
                lvi.SubItems.Add(item.Value.DailyRent.ToString());
                if (item.Value is Truck)
                {
                    lvi.SubItems.Add((item.Value as Truck).Load.ToString());
                }
                else
                {
                    lvi.SubItems.Add("无");
                }
                lvKeZu.Items.Add(lvi);
            }

        }

        /// <summary>
        /// 单击租车
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnZu_Click(object sender, EventArgs e)
        {
            //判断
            if (lvKeZu.SelectedItems.Count > 0)
            {
                if (!string.IsNullOrEmpty(txtName.Text.Trim()))
                {
                    //获取选中行的车牌号
                    string chePaiHao = lvKeZu.SelectedItems[0].SubItems[0].Text.ToString();
                    Vehicle vehicle = null;
                    //判断选中的是哪种车
                    if (KeZuChe[chePaiHao] is JCar)
                    {
                        vehicle = new JCar();
                        vehicle = KeZuChe[chePaiHao];
                    }
                    if (KeZuChe[chePaiHao] is Truck)
                    {
                        vehicle = new Truck();
                        vehicle = KeZuChe[chePaiHao];
                        //如果选的是卡车就加一个重量属性
                        ((Truck)vehicle).Load = ((Truck)KeZuChe[chePaiHao]).Load;
                    }

                    vehicle.RentUser = txtName.Text;
                    //添加指定车辆 到已租车集合
                    YiZuChe.Add(vehicle.LicenseNo, vehicle);
                    //删除指定车辆 的可租车集合
                    KeZuChe.Remove(chePaiHao);
                    MessageBox.Show("客户  " + vehicle.RentUser + "  租车成功！");
                }
                else
                {
                    MessageBox.Show("请填写租用者", "提示！", MessageBoxButtons.OK, MessageBoxIcon.Information);
                }
            }
            else
            {
                MessageBox.Show("请选择车辆","提示！",MessageBoxButtons.OK,MessageBoxIcon.Information);
            }
        }

        /// <summary>
        /// 单击刷新重新绑定  可租车列表
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnShuaXinKeZu_Click(object sender, EventArgs e)
        {
            BangKeZuChe();
        }

        /// <summary>
        /// 单击退出
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnExit_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }

        /// <summary>
        /// 刷新已租车列表 （结算界面）
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnShuaXin_Click(object sender, EventArgs e)
        {
            BangYiZuCheList();
        }

        /// <summary>
        /// 绑定已租车列表 lvJieSuan
        /// </summary>
        public void BangYiZuCheList()
        {
            //清空ListView
            lvJieSuan.Items.Clear();
            //遍历已租车集合 添加到 ListView
            foreach (var item in YiZuChe)
            {
                ListViewItem lvi = new ListViewItem(item.Key);
                lvi.SubItems.Add(item.Value.Name);
                lvi.SubItems.Add(item.Value.Color);
                lvi.SubItems.Add(item.Value.YearsOfService.ToString());
                lvi.SubItems.Add(item.Value.DailyRent.ToString());
                if (item.Value is Truck)
                {
                    lvi.SubItems.Add((item.Value as Truck).Load.ToString());
                }
                lvJieSuan.Items.Add(lvi);
            }
        }

        /// <summary>
        /// 更改tabControl1选项时
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void tabControl1_SelectedIndexChanged(object sender, EventArgs e)
        {
            //当选中还车时绑定已租车列表 lvJieSuan
            if (tabControl1.SelectedIndex == 1)
            {
                BangYiZuCheList();
            }
        }

        /// <summary>
        /// 当选中发生改变
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void rbtnKa_CheckedChanged(object sender, EventArgs e)
        {
            txtLoad.Enabled = true;
        }

        /// <summary>
        /// 当选中发生改变
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void rbtnJiao_CheckedChanged(object sender, EventArgs e)
        {
            txtLoad.Enabled = false;
        }

        /// <summary>
        /// 单击入库
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnRuKu_Click(object sender, EventArgs e)
        {
            // 判断输入信息是否为空
            if (FeiKong())
            {
                Vehicle vehicle = null;
                //判断添加车型是哪种
                if (rbtnJiao.Checked == true)
                {
                    vehicle = new JCar();
                }
                else
                {
                    vehicle = new Truck();
                    (vehicle as Truck).Load = int.Parse(txtLoad.Text);
                }
                vehicle.Color = cmbColor.Text;
                vehicle.DailyRent = double.Parse(txtDailyRent.Text);
                vehicle.LicenseNo = txtLicenseNo.Text;
                vehicle.Name = txtVehicleName.Text;
                vehicle.YearsOfService = int.Parse(txtYearsOfService.Text);

                try
                {
                    //当vehicle.LicenseNo（Keys）车牌号重复时，报出异常
                    KeZuChe.Add(vehicle.LicenseNo, vehicle);
                    MessageBox.Show("添加成功");
                }
                catch (Exception)
                {
                    MessageBox.Show("已有该车牌号");
                }
            }
            else
            {
                MessageBox.Show("信息不能为空！");
            }
        }

        /// <summary>
        /// 判断是否为空
        /// </summary>
        /// <returns></returns>
        public bool FeiKong()
        {
            bool isK = false;
            if (string.IsNullOrEmpty(txtLicenseNo.Text.Trim()))
            {
            }
            else if (string.IsNullOrEmpty(txtVehicleName.Text.Trim()))
            {
            }
            else if (string.IsNullOrEmpty(cmbColor.Text.Trim()))
            {
            }
            else if (string.IsNullOrEmpty(txtYearsOfService.Text.Trim()))
            {
            }
            else if (string.IsNullOrEmpty(txtDailyRent.Text.Trim()))
            {
            }
            else
            {
               isK = true;
            }
            return isK;
        }


        /// <summary>
        /// 单击结算
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnJie_Click(object sender, EventArgs e)
        {
            //判断
            if (lvJieSuan.SelectedItems.Count > 0)
            {
                if (!string.IsNullOrEmpty(txtDay.Text.Trim()))
                {
                    //找到选中还车是哪一辆
                    string key = lvJieSuan.SelectedItems[0].Text;
                    //按照输入的租车天数给该车属性赋值
                    YiZuChe[key].RentDate = int.Parse(txtDay.Text);
                    //调用该车的计算总价方法 并输出总价
                    MessageBox.Show("还车成功，总价为：" + YiZuChe[key].Money());
                    //还车成功后， 在可租车集合中添加该车
                    KeZuChe.Add(YiZuChe[key].LicenseNo,YiZuChe[key]);
                    //还车成功后， 在已租车集合中删除该车
                    YiZuChe.Remove(key);
                }
                else
                {
                    MessageBox.Show("请输入租车天数！");
                }
            }
            else
            {
                MessageBox.Show("请选中一辆车！");
            }
        }
    }
}