今天无聊中弄了个小东西，熟悉一下对listview和treeview的用法。代码如下：

 public partial class Form1 : Form{private School school;public Form1(){InitializeComponent();Office o1 = new Office("计算机基础","王军","杨晓勇","何平","姜涛");Office o2 = new Office("软件工程", "马建国", "陈军", "刘晓燕");Office o3 = new Office("信息安全", "冯尧", "李建军", "张涛");Department d1=new Department("计算机",o1,o2,o3);Office o4 = new Office("自动控制", "吴自力", "陈锋", "薛小龙");Office o5 = new Office("工业设计", "吴淑华", "方坤", "何丽", "蔡聪");Department d2=new Department("机电工程",o4,o5);Office o6 = new Office("信息管理", "赵民", "盛晓楠", "徐小平");Office o7 = new Office("工商管理", "张敏", "李玲", "吕倩", "高健");Department d3=new Department("经济管理",o6,o7);school = new School("科大", d1, d2, d3);TreeNode root = treeView1.Nodes.Add(school.ToString());foreach(Department d in school.departments ){TreeNode node = root.Nodes.Add(d.ToString());foreach (Office o in d.offices){node.Nodes.Add(o.ToString());}}listView1.Columns.Add("姓名");listView1.Columns.Add("电话");listView1.Columns.Add("电子邮件");}private void treeView1_AfterSelect(object sender, TreeViewEventArgs e){listView1.Items.Clear();if (e.Node.Level == 0){foreach (Department d in school.departments){listView1.Items.Add(d.ToString(),0);}}else if (e.Node.Level == 1){foreach (Office o in school.departments[e.Node.Index].offices){listView1.Items.Add(o.ToString(), 1);}}else if (e.Node.Level == 2){foreach (string s in school.departments[e.Node.Parent.Index].offices[e.Node.Index].teachers){listView1.Items.Add(s.ToString(), 2);}}}}public class School{public School(string name, params Department[] departments){this.Name = name;this.departments = new List<Department>(departments);}public string Name { get; set; }public List<Department> departments { get; set; }public override string ToString(){return Name;}}public class Department{public string Name { get; set; }public List<Office> offices { get; set; }public Department(string name, params Office[] offices){this.Name = name;

            this.offices = new List<Office>(offices);}public override string ToString(){return Name + "系";}}public class Office{public string Name { get; set; }public List<string> teachers { get; set; }public Office(string name, params string[] teachers){this.Name = name;this.teachers = new List<string>(teachers);}public override string ToString(){return Name + "教研室";}}
运行后截图：