体检套餐管理系统

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

namespace HealthSys.entity
{
    /// <summary>
    /// 检查项目类
    /// </summary>
    public class HealthCheckItem
    {
        /// <summary>
        /// 描述
        /// </summary>
        public string Description { get; set; }

        /// <summary>
        /// 名称
        /// </summary>
        public string Name { get; set; }

        /// <summary>
        /// 价格
        /// </summary>
        public int Price { get; set; }

    }
}

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

namespace HealthSys.entity
{
    /// <summary>
    /// 套餐类
    /// </summary>
    public class HealthCheckSet
    {
        /// <summary>
        /// 套餐，代表项目的集合
        /// </summary>
        public List<HealthCheckItem> Items { get; set; }

        /// <summary>
        /// 套餐名称
        /// </summary>
        public string Name { get; set; }

        /// <summary>
        /// 套餐价格（总和）
        /// </summary>
        public int Price { get; set; }

        /// <summary>
        /// 无参构造函数
        /// </summary>
        public HealthCheckSet()
        {
            Items = new List<HealthCheckItem>();
        }

        /// <summary>
        /// 带参构造函数
        /// </summary>
        /// <param name="items"></param>
        /// <param name="name"></param>
        public HealthCheckSet(List<HealthCheckItem> items, string name)
        {
            this.Items = items;
            this.Name = name;
        }
        
        /// <summary>
        /// 计算总价
        /// </summary>
        public void CalcPrice()
        {
            int totalPrice = 0;
            //遍历item项中的pirce价格
            foreach (HealthCheckItem item in this.Items)
            {
                totalPrice += item.Price;
            }
            this.Price = totalPrice;
        }
    }
}

using HealthSys.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 HealthSys
{
    public partial class FrmMain : Form
    {
        public FrmMain()
        {
            InitializeComponent();
        }

        /// <summary>
        /// 所有体检项目
        /// </summary>
        public List<HealthCheckItem> AllItems = new List<HealthCheckItem>();

        /// <summary>
        /// 套餐中的体检项目
        /// </summary>
        public List<HealthCheckItem> Items = new List<HealthCheckItem>();

        /// <summary>
        /// 套餐列表集合
        /// </summary>
        public Dictionary<string, HealthCheckSet> HealthSet = new Dictionary<string, HealthCheckSet>();

        /// <summary>
        /// 设置为入学体检
        /// </summary>
        HealthCheckSet healthCheckSet;

        /// <summary>
        /// 定义一些检查项
        /// </summary>
        HealthCheckItem height, weight, Bchao, Gan, sight, litsen, heart,choose;


        /// <summary>
        /// 套餐初始值
        /// </summary>
        public void Inital()
        {
            choose = new HealthCheckItem();
            choose.Name = "请选择";
            height = new HealthCheckItem();
            height.Name = "身高";
            height.Price = 5;
            height.Description = "检测身高";
            weight = new HealthCheckItem();
            weight.Name = "体重";
            weight.Price = 10;
            weight.Description = "检测体重";
            Bchao = new HealthCheckItem();
            Bchao.Name = "B超";
            Bchao.Price = 30;
            Bchao.Description = "检测B超";
            Gan = new HealthCheckItem();
            Gan.Name = "肝功能";
            Gan.Price = 50;
            Gan.Description = "检测肝功能";
            sight = new HealthCheckItem();
            sight.Name = "视力";
            sight.Price = 5;
            sight.Description = "检测视力";
            litsen = new HealthCheckItem();
            litsen.Name = "听觉";
            litsen.Price = 5;
            litsen.Description = "检测听觉";
            heart = new HealthCheckItem();
            heart.Name = "心电图";
            heart.Price = 100;
            heart.Description = "检测心电图";
            AllItems.Add(choose);
            AllItems.Add(height);
            AllItems.Add(weight);
            AllItems.Add(Bchao);
            AllItems.Add(Gan);
            AllItems.Add(sight);
            AllItems.Add(litsen);
            AllItems.Add(heart);
        }

        /// <summary>
        /// 设置默认套餐
        /// </summary>
        public void initalSet()
        {
            //默认套餐添加数据
            Items = new List<HealthCheckItem>();
            Items.Add(height);
            Items.Add(weight);
            Items.Add(sight);
            Items.Add(heart);

            healthCheckSet = new HealthCheckSet(Items,"入学体检");
            //调用计算价格
            healthCheckSet.CalcPrice();
            HealthSet.Add("入学体检", healthCheckSet);

        }

        /// <summary>
        /// 绑定检查项目数据
        /// </summary>
        public void BindList()
        {
            //绑定检查项目
            cmbCheckItem.DataSource = new List<HealthCheckItem>(AllItems);
            cmbCheckItem.DisplayMember = "Name";
            cmbCheckItem.ValueMember = "";
        }

        /// <summary>
        /// 绑定套餐列表
        /// </summary>
        public void BindSet()
        {
            //清空选项，为了避免刷新产生重复值
            cmbItem.Items.Clear();
            //添加选择
            cmbItem.Items.Add("请选择");
            foreach (var key in HealthSet.Keys)
            {
                cmbItem.Items.Add(key);
            }
            //默认为0
            cmbItem.SelectedIndex = 0;
        }

        /// <summary>
        /// 窗体加载
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void FrmMain_Load(object sender, EventArgs e)
        {
            //设置套餐名、价格为空，添加删除键不能使用
            lblName.Text = "";
            lblPrice.Text = "";
            btnAdd.Enabled = false;
            btnDelete.Enabled = false;

            Inital();
            initalSet();
            BindSet();

            BindList();
            
            
        }

        /// <summary>
        /// 绑定dgv的数据
        /// </summary>
        /// <param name="set"></param>
        public void BindDgv(HealthCheckSet set)
        {
            dgvShow.AutoGenerateColumns = false;
            dgvShow.DataSource = new BindingList<HealthCheckItem>(set.Items);
        }

        /// <summary>
        /// 套餐列表选择
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void cmbItem_SelectedIndexChanged(object sender, EventArgs e)
        {
            string listName = cmbItem.Text.Trim();
            if (listName == "请选择")
            {
                //dgv的数据绑定为空
                dgvShow.DataSource = new BindingList<HealthCheckItem>();
                lblName.Text = "";
                lblPrice.Text = "";
                return;
            }
            //改变套餐名
            lblName.Text = HealthSet[listName].Name;
            //改变价格
            lblPrice.Text = HealthSet[listName].Price.ToString();
            //根据选择的套餐，绑定新的数据
            BindDgv(HealthSet[listName]);

            btnDelete.Enabled = true;
        }

        /// <summary>
        /// 删除套餐中某个项目
        /// </summary>
        public void Delete()
        {
            string listName = cmbItem.Text;
            if (dgvShow.SelectedRows.Count == 0)
            {
                MessageBox.Show("请选择删除项！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            //获取选中项的下标
            int index = dgvShow.SelectedRows[0].Index;
            //根据下标删除选中项
            HealthSet[listName].Items.RemoveAt(index);
            //重新算价格
            HealthSet[listName].CalcPrice();
            //刷新dgv
            BindDgv(HealthSet[listName]);
            lblName.Text = healthCheckSet.Name;
            lblPrice.Text = healthCheckSet.Price.ToString();
            MessageBox.Show("删除成功。", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
        }

        /// <summary>
        /// 点击删除按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnDelete_Click(object sender, EventArgs e)
        {
            Delete();
        }
        
        /// <summary>
        /// 添加新的检查项目至套餐中
        /// </summary>
        public void AddItme()
        {
            //先判断是否有选择套餐与项目
            if (cmbItem.Text == "请选择")
            {
                MessageBox.Show("请选择套餐。", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }
            if (cmbCheckItem.Text == "请选择")
            {
                MessageBox.Show("请选择一个项目。", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }

            int index = cmbCheckItem.SelectedIndex - 1;
            if (!HealthSet[cmbItem.Text].Items.Contains(AllItems[index]))
            {
                //添加选中的检查项
                HealthSet[cmbItem.Text].Items.Add(AllItems[index]);
                //计算总价
                HealthSet[cmbItem.Text].CalcPrice();
                //刷新dgv
                BindDgv(HealthSet[cmbItem.Text]);
                lblName.Text = this.HealthSet[cmbItem.Text].Name;
                lblPrice.Text = this.HealthSet[cmbItem.Text].Price.ToString();
                MessageBox.Show("添加成功。", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            else
            {
                MessageBox.Show("该项目已存在，请勿重复选择。", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        /// <summary>
        /// 添加套餐
        /// </summary>
        public void AddSet()
        {
            if (string.IsNullOrEmpty(txtItemName.Text.Trim()))
            {
                MessageBox.Show("请输入套餐名称!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }
            HealthCheckSet set = new HealthCheckSet();
            HealthSet.Add(txtItemName.Text.Trim(), set);

            //刷新套餐
            BindSet();

            cmbItem.SelectedIndex = HealthSet.Count;

            MessageBox.Show("添加成功!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
        }

        /// <summary>
        /// 点击添加（套餐名称）
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnAddItemName_Click(object sender, EventArgs e)
        {
            AddSet();
        }

        /// <summary>
        /// 判断体检项目文本是否“请选择”，改变添加按钮是否可使用
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void cmbCheckItem_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (cmbCheckItem.Text != "请选择")
            {
                btnAdd.Enabled = true;
            }
            else
            {
                btnAdd.Enabled = false;
            }
        }

        /// <summary>
        /// 添加项目的按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnAdd_Click(object sender, EventArgs e)
        {
            AddItme();
        }


    }
}

（注： HealthCheckSet 类与 HealthCheckItem 类都是存放在 entity 文件夹当中，所以在 FrmMain 中要添加引用命名空间 using HealthSys.entity;）

效果以视频展示：

请移步去 --> http://www.bilibili.com/video/av9738053/