winform

 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Linq;
 7 using System.Text;
 8 using System.Windows.Forms;
 9 
10 namespace ComboBox_ListView
11 {
12     public partial class Form1 : Form
13     {
14         public Form1()
15         {
16             InitializeComponent();
17         }
18 
19         private void Form1_Load(object sender, EventArgs e)
20         {
21             // comboBox1绑定数据源 
22             comboBox1.DataSource = Enum.GetNames(typeof(View));
23 
24             // 为listView1指定大图标控件
25             listView1.LargeImageList = imageList1;
26             // 为listView1指定小图标控件
27             listView1.SmallImageList = imageList2;
28 
29         }
30 
31         private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
32         {
33 
34             listView1.Items.Clear();
35             // 获取当前系统进程
36             string[] processess = System.Diagnostics.Process.GetProcesses().Select(p => p.ProcessName).ToArray();
37 
38             // 将进程加入到listView1控件的Items中, p为单一进程名称, 0 为ImageList中图片资源的索引
39             // 写法1:
40             foreach (string p in processess)
41             {
42                 listView1.Items.Add(p, 0);
43             }
44 
45             //// 写法2:
46             //Array.ForEach(processess, p=>listView1.Items.Add(p,0));
47             
48             //// 写法3:
49             //Array.ForEach(processess, p => listView1.Items.Add(new ListViewItem(p, 0)));
50 
51             // 列表框选择项改变时试着ListView控件的视图效果: 大图标/ 小图标/ 列表 等等
52             listView1.View = (View)Enum.Parse(typeof(View), comboBox1.Text);
53 
54         }
55 
56     }
57 
58 }