DevExpress建立一个常规TreeList

【实例简介】XtraTreeList(https://www.daboke.com)是DevExpress中的一个树形控件，它可以将信息显示为树状、网格或两者的结合，XtraTreeList 不缓存任何数据，因此只占用少量内存，并且快速执行数据操作!

【实例截图】

【核心代码】

using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace CreateXtraTreeList
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        /// <summary>
        /// 节点选中前事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void treeList1_BeforeCheckNode(object sender, DevExpress.XtraTreeList.CheckNodeEventArgs e)
        {
            e.State = (e.PrevState == CheckState.Checked ? CheckState.Unchecked : CheckState.Checked);
        }

        /// <summary>
        /// 节点选中后事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void treeList1_AfterCheckNode(object sender, DevExpress.XtraTreeList.NodeEventArgs e)
        {
            SetCheckedChildNodes(e.Node, e.Node.CheckState);
            SetCheckedParentNodes(e.Node, e.Node.CheckState);

        }

        /// <summary>
        /// 设置子节点的状态
        /// </summary>
        /// <param name="node"></param>
        /// <param name="check"></param>
        private void SetCheckedChildNodes(DevExpress.XtraTreeList.Nodes.TreeListNode node, CheckState check)
        {
            for (int i = 0; i < node.Nodes.Count; i  )
            {
                node.Nodes[i].CheckState = check;
                SetCheckedChildNodes(node.Nodes[i], check);
            }
        }

        /// <summary>
        /// 设置父节点的状态
        /// </summary>
        /// <param name="node"></param>
        /// <param name="check"></param>
        private void SetCheckedParentNodes(DevExpress.XtraTreeList.Nodes.TreeListNode node, CheckState check)
        {
            if (node.ParentNode != null)
            {
                bool b = false;
                CheckState state;
                for (int i = 0; i < node.ParentNode.Nodes.Count; i  )
                {
                    state = (CheckState)node.ParentNode.Nodes[i].CheckState;
                    if (!check.Equals(state))
                    {
                        b = !b;
                        break;
                    }
                }
                node.ParentNode.CheckState = b ? CheckState.Indeterminate : check;
                SetCheckedParentNodes(node.ParentNode, check);
            }
        }


        private void Form1_Load(object sender, EventArgs e)
        {
            ArrayList BookList = new ArrayList();//声明一个ArrayList存放图书信息

            Library m_catefory1 = new Library();
            m_catefory1.ID = 1;
            m_catefory1.Subject = "计算机科学与技术";          
            BookList.Add(m_catefory1);

            Library m_book1 = new Library();
            m_book1.ID = 2;//子节点2
            m_book1.ParentID = 1;//隶属父节点1
            m_book1.Subject = "C#设计模式";
            m_book1.Author = "(美)James W. Cooper";
            m_book1.ISBN = "9787030308153";
            m_book1.Pdate = "2011-07";
            m_book1.Version = "1";
            BookList.Add(m_book1);

            Library m_book2 = new Library();
            m_book2.ID = 3;//子节点3
            m_book2.ParentID = 1;//隶属父节点1
            m_book2.Subject = "C#面向对象程序设计";
            m_book2.Author = "黄聪明";
            m_book2.ISBN = "7030124847";
            m_book2.Pdate = "2004-01";
            m_book2.Version = "1";
            BookList.Add(m_book2);

            Library m_book3 = new Library();
            m_book3.ID = 4;//子节点4
            m_book3.ParentID = 1;//隶属父节点1
            m_book3.Subject = "C#程序设计案例教程";
            m_book3.Author = "王明福";
            m_book3.ISBN = "9787030239747";
            m_book3.Pdate = "2009-02";
            m_book3.Version = "1";
            BookList.Add(m_book3);

            Library m_catefory2 = new Library();
            m_catefory2.ID = 5;
            m_catefory2.Subject = "文学";
            BookList.Add(m_catefory2);

            Library m_book4 = new Library();
            m_book4.ID = 6;//子节点6
            m_book4.ParentID = 5;//隶属父节点5
            m_book4.Subject = "殷商西周散文文体研究";
            m_book4.Author = "梅軍";
            m_book4.ISBN = "9787030478566";
            m_book4.Pdate = "2016-03";
            m_book4.Version = "1";
            BookList.Add(m_book4);

            Library m_book5 = new Library();
            m_book5.ID = 7;//子节点7
            m_book5.ParentID = 5;//隶属父节点5
            m_book5.Subject = "生命无序 : 李肇星的家国情怀";
            m_book5.Author = "李肇星";
            m_book5.ISBN = "9787030285867";
            m_book5.Pdate = "2011-02";
            m_book5.Version = "1";
            BookList.Add(m_book5);


            this.treeList1.OptionsView.ShowCheckBoxes = true;// //是否显示CheckBox

            this.treeList1.OptionsBehavior.AllowIndeterminateCheckState = true;// //设置节点是否有中间状态，即一部分子节点选中，一部分子节点没有选中

            this.treeList1.DataSource = BookList;//将BookList数据绑定到treeList1上

            this.treeList1.RefreshDataSource();//刷新reeList1
        }

        private void Button1_Click(object sender, EventArgs e)
        {
            System.Diagnostics.Process.Start("https://www.daboke.com");//欢迎访问大博客，阅读更多编程实战案例！
        }

        private void Button2_Click(object sender, EventArgs e)
        {
            System.Diagnostics.Process.Start("https://www.daboke.com/devexpress/xtratreelist.html");//原文链接！
        }

        private void Button3_Click(object sender, EventArgs e)
        {
            System.Diagnostics.Process.Start("https://space.bilibili.com/580719958");//欢迎访问我的B站频道-编程自修室，观看更多C#编程实战视频！
        }
    }
}