WINFORM学习手册——数据绑定

绑定数据，需要注意的是，需要把数据源封装为BindingSource对象：

一、创建一个解决方案，并设计其页面如下图

二、新建一个类UserInfo.cs，作为数据源：

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

namespace DataBuildingList
{
    public class UserInfo
    {
        public UserInfo()
        { }
        public UserInfo(int id, string name, string address, string category, bool isAdmin)
        {
            this.Id = id;
            this.Name = name;
            this.Address = address;
            this.Category = category;
            this.IsAdmin = isAdmin;
        }
        public int Id { get; set; }
        public string Name { get; set; }
        public string Address { get; set; }
        public string Category { get; set; }
        public bool IsAdmin { get; set; }
        /// <summary>
        /// 获取初始数据
        /// </summary>
        /// <returns></returns>
        public static IList<UserInfo> GetInitData()
        {
            IList<UserInfo> users = new List<UserInfo>();
            users.Add(new UserInfo(1, "万红", "重庆", "办公室", true));
            users.Add(new UserInfo(2, "陈丽", "上海", "办公室", false));
            users.Add(new UserInfo(3, "王菲", "香港", "办公室", false));
            users.Add(new UserInfo(4, "胡军", "香港", "办公室", false));


            users.Add(new UserInfo(5, "陶行知", "深圳", "财务室", true));
            users.Add(new UserInfo(6, "张静", "云南", "财务室", false));
            users.Add(new UserInfo(7, "田静", "码头", "财务室", false));
            users.Add(new UserInfo(8, "田忌", "青海", "财务室", false));
            users.Add(new UserInfo(9, "刘德华", "重庆", "财务室", false));
            users.Add(new UserInfo(10, "张杰", "珠江", "财务室", false));
            users.Add(new UserInfo(11, "张翰", "宝山", "财务室", false));

            users.Add(new UserInfo(12, "李希", "深圳", "后勤部", true));
            users.Add(new UserInfo(13, "李伟", "云南", "后勤部", false));
            users.Add(new UserInfo(14, "王晶", "码头", "后勤部", false));
            users.Add(new UserInfo(15, "刘芳", "青海", "后勤部", false));
            users.Add(new UserInfo(16, "万威", "重庆", "后勤部", false));
            users.Add(new UserInfo(17, "赵飞", "珠江", "后勤部", false));
            users.Add(new UserInfo(18, "张信哲", "宝山", "后勤部", false));

            return users;
        }
       
    }

}

三、绑定数据，将下面的代码复制到MainForm.cs中：

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 DataBuildingList
{
    public partial class MainForm : Form
    {
        private IList<UserInfo> UserDatas = UserInfo.GetInitData();
        private BindingSource BindingUsers = new BindingSource();
        public MainForm()
        {
            InitializeComponent();
            //获取combo数据
            IList<string> categorys = UserDatas.Select(o => o.Category).Distinct().ToList();
            //绑定combo数据
            this.comboCategory.ComboBox.DataSource = categorys;
            //获取第一个类别的名称
            string category = categorys[0];
            //绑定数据
            DataBuilding(category);
            //绑定ListView数据
            this.listBox1.DataSource = BindingUsers;
            this.listBox1.DisplayMember = "Name";
            //绑定ID文本框数据
            this.txtId.DataBindings.Add("Text", BindingUsers, "Id");
            //绑定姓名文本框数据
            this.txtName.DataBindings.Add("Text", BindingUsers, "Name");
            //绑定地址文本框数据
            this.txtAddress.DataBindings.Add("Text", BindingUsers, "Address");
            //绑定是否责任人数据
            this.boxIsAdmin.DataBindings.Add("Checked", BindingUsers, "IsAdmin");
        }
        /// <summary>
        /// 将选中类别下面的数据显示在ListView中
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void comboCategory_SelectedIndexChanged(object sender, EventArgs e)
        {
            //获取选中的类别
            var category = this.comboCategory.Text;
            //绑定ListView数据
            DataBuilding(category);
        }
        /// <summary>
        /// 绑定ListView数据
        /// </summary>
        /// <param name="category"></param>
        private void DataBuilding(string category)
        {
            IList<UserInfo> listDatas = UserDatas.Where(o => o.Category == category).ToList();
            this.BindingUsers.DataSource = listDatas;
        }
        /// <summary>
        /// 新增
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void newToolStripButton_Click(object sender, EventArgs e)
        {
            AddUserForm userForm = new AddUserForm();
            if (userForm.ShowDialog() == DialogResult.Yes)
            {
                this.BindingUsers.Add(userForm.User);
            }
        }

        
    }
}

四、绑定combo的selectedIndexchanged事件为comboCategory_SelectedIndexChanged方法：

 

五、创建一个新的窗体，用于新增数据：

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 DataBuildingList
{
    public partial class AddUserForm : Form
    {
        /// <summary>
        /// 用户数据
        /// </summary>
        public UserInfo User { get; set; }
        public AddUserForm()
        {
            InitializeComponent();
            User = new UserInfo();
            //绑定ID文本框数据
            this.txtId.DataBindings.Add("Text", User, "Id");
            //绑定姓名文本框数据
            this.txtName.DataBindings.Add("Text", User, "Name");
            //绑定地址文本框数据
            this.txtAddress.DataBindings.Add("Text", User, "Address");
            //绑定是否责任人数据
            this.boxIsAdmin.DataBindings.Add("Checked", User, "IsAdmin");
        }

    }
}

执行：