S2T40,第五章

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

 namespace HealthCheck
 {
     public class HealthCheckSet
     {
         public List<HealthCheckItems> Items { get; set; }
         public string Name { get; set; }
         public int Price { get; set; }

         public HealthCheckSet()
         {
             this.Items = new List<HealthCheckItems>();
         }
         /// <summary>
         /// 计算总金额
         /// </summary>
         public void CalcPrice()
         {
             int totalPrice = ;
             foreach (HealthCheckItems item in this.Items)
             {
                 totalPrice += item.Price;
             }
             this.Price = totalPrice;
         }

     }
 }

套餐类

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

 namespace HealthCheck
 {
     public class HealthCheckItems
     {
         public string Description { get; set; }
         public string Name { get; set; }
         public int Price { get; set; }

         /// <summary>
         /// 方法重载
         /// </summary>
         /// <param name="description"></param>
         /// <param name="name"></param>
         /// <param name="price"></param>
         public HealthCheckItems(string description,string name,int price)
         {
             this.Description = description;
             this.Name = name;
             this.Price = price;
         }
         public HealthCheckItems()
         {
         }

     }
 }

体检项类

 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 HealthCheck
 {
     public partial class FrmMain : Form
     {
         public FrmMain()
         {
             InitializeComponent();
         }
         List<HealthCheckItems> Items;//声明Items集合用于保存套餐中的体检项
         List<HealthCheckItems> AllItems = new List<HealthCheckItems>();//声明AllItems集合，用于保存所有体检项
         HealthCheckSet Hcs;//声明HealthCheckSet对象
         //创建SetMeal字典
         public Dictionary<string, HealthCheckSet> SetMeal = new Dictionary<string, HealthCheckSet>();

         /// <summary>
         /// 初始化各体检项，套餐并将全部检查项绑定到cmbItem中
         /// </summary>
         public void InitItems()
         {
             HealthCheckItems hc1 = new HealthCheckItems("用于检查身高","身高",);
             HealthCheckItems hc2 = new HealthCheckItems( "用于检查体重","体重", );
             HealthCheckItems hc3 = new HealthCheckItems( "用于检查视力","视力", );
             HealthCheckItems hc4 = new HealthCheckItems( "用于检查听力","听力", );
             HealthCheckItems hc5 = new HealthCheckItems( "用于检查肝功能","肝功能", );
             HealthCheckItems hc6 = new HealthCheckItems( "用于检查B超","B超", );
             AllItems.Add(hc1);
             AllItems.Add(hc2);
             AllItems.Add(hc3);
             AllItems.Add(hc4);
             AllItems.Add(hc5);
             AllItems.Add(hc6);

             for (int i = ; i < AllItems.Count; i++)
             {
               cmbItem.Items.Add(AllItems[i].Name);
             }

             Items = new List<HealthCheckItems>();
             Items.Add(hc1);
             Items.Add(hc2);
             Items.Add(hc4);
             Items.Add(hc5);
             Hcs = new HealthCheckSet();
             Hcs.Items = Items;
             Hcs.Name = "入学体检";
             Hcs.CalcPrice();
             SetMeal.Add(Hcs.Name,Hcs);
             BindList();
         }
         /// <summary>
         /// 窗体加载
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void FrmMain_Load(object sender, EventArgs e)
         {
             InitItems();
         }
         /// <summary>
         /// 选中套餐之后加载所对应的各项，并更新视图
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void cmbSetMealList_SelectedIndexChanged(object sender, EventArgs e)
         {
             string Name = this.cmbSetMealList.Text;
             if (Name.Equals("请选择"))
             {
                 dgvHealthCheckItem.DataSource = new BindingList<HealthCheckItems>();
                 lblTcName.Text = "";
                 lblPrice.Text = "";
                 btnAdd.Enabled = false;
                 btnDelete.Enabled = false;
             }
             else
             {
                 UpdateView(SetMeal[Name]);
                 btnDelete.Enabled = true;

             }
         }
         /// <summary>
         /// 更新视图
         /// </summary>
         /// <param name="Hes"></param>
         public void UpdateView(HealthCheckSet Hes)
         {
             dgvHealthCheckItem.DataSource = new BindingList<HealthCheckItems>(Hes.Items);
             cmbItem.SelectedIndex = ;
             lblTcName.Text = Hes.Name;
             lblPrice.Text = Hes.Price.ToString();
         }
         /// <summary>
         /// 绑定套餐类到cmbSetMealList中
         /// </summary>
         public void BindList()
         {
             this.cmbSetMealList.Items.Clear();
             this.cmbSetMealList.Items.Add("请选择");
             foreach (var Hc in SetMeal.Keys)
             {
                 cmbSetMealList.Items.Add(Hc);
             }
             cmbSetMealList.SelectedIndex = ;
         }
         /// <summary>
         /// 删除
         /// </summary>
         public void Delete()
         {
             //获取套餐名称
             string Name = this.cmbSetMealList.Text;
             //判断是否选中一行
             if (dgvHealthCheckItem.SelectedRows.Count == )
             {
                 MessageBox.Show("请选中要删除的项", "提示");
             }
             else
             {
                 //获取选中项的索引
                 int index = dgvHealthCheckItem.SelectedRows[].Index;
                 //删除选中项的集合
                 SetMeal[Name].Items.RemoveAt(index);
                 SetMeal[Name].CalcPrice();
                 //更新DataGridView视图
                 UpdateView(SetMeal[Name]);
                 MessageBox.Show("删除成功。", "提示", MessageBoxButtons.OK,

 MessageBoxIcon.Information);
             }
         }
         /// <summary>
         /// 单击删除
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void btnDelete_Click(object sender, EventArgs e)
         {
             Delete();
         }
         /// <summary>
         /// 选中体检项时，添加按钮可用
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void cmbItem_SelectedIndexChanged(object sender, EventArgs e)
         {
             this.btnAdd.Enabled = true;
         }
         /// <summary>
         /// 添加
         /// </summary>
         public void Insert()
         {
             //获取当前套餐名字
             string Name = cmbSetMealList.Text;
             if (cmbItem.SelectedIndex == -)
             {
                 MessageBox.Show("请选择一个项目！");
             }
             else
             {
                 //获取选中项目的下标
                 int index = cmbItem.SelectedIndex;
                 //判断套餐中的项目集合是否有选择的项目
                 if (!SetMeal[Name].Items.Contains(AllItems[index]))
                 {
                     //添加选择项目到套餐中
                     SetMeal[Name].Items.Add(AllItems[index]);

                     //重新计算
                     SetMeal[Name].CalcPrice();
                     //更新视图
                     UpdateView(SetMeal[Name]);
                     lblPrice.Text = SetMeal[Name].Price.ToString();
                     MessageBox.Show("添加成功！", "提示",

 MessageBoxButtons.OK, MessageBoxIcon.Information);
                 }
                 else
                 {
                     MessageBox.Show("该项目存在！", "提示",

 MessageBoxButtons.OK, MessageBoxIcon.Error);
                 }
             }

         }
         /// <summary>
         /// 单击添加
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void btnAdd_Click(object sender, EventArgs e)
         {
             Insert();
         }
         /// <summary>
         /// 新建套餐
         /// </summary>
         public void NewSetMeal()
         {
             if (string.IsNullOrEmpty(txtSetMealName.Text.Trim()))
             {
                 MessageBox.Show("请输入套餐名称!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
             }
             else
             {
                  //获取新建套餐的名字
                 string NewName = txtSetMealName.Text.Trim();
                  //新建套餐类
                  Hcs= new HealthCheckSet();
                  Hcs.Name = NewName;
                  //添加到套餐字典中
                  SetMeal.Add(Hcs.Name, Hcs);
                  //套餐选择框加载
                  BindList();
                  //默认选中新建套餐
                  cmbSetMealList.SelectedIndex = SetMeal.Count;
                  //更新视图
                  UpdateView(SetMeal[NewName]);
                  MessageBox.Show("添加成功!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
             }
         }
         /// <summary>
         /// 单击新建套餐
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void btnInsert_Click(object sender, EventArgs e)
         {
             NewSetMeal();
         }
     }
 }

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