using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
//引用命名空间
using System.Diagnostics;
using System.Threading;
namespace StartStopProcess
{
  public partial class Form1 : Form
  {
    int fileIndex;
    string fileName = "Notepad.exe";
    Process process1 = new Process();
    public Form1()
    {
      InitializeComponent();
      //以详细列表方式显示
      listView1.View = View.Details;
      //参数含义：列名称，宽度（像素），水平对齐方式
      listView1.Columns.Add("进程ID", 70, HorizontalAlignment.Left);
      listView1.Columns.Add("进程名称", 70, HorizontalAlignment.Left);
      listView1.Columns.Add("占用内存", 70, HorizontalAlignment.Left);
      listView1.Columns.Add("启动时间", 70, HorizontalAlignment.Left);
      listView1.Columns.Add("文件名", 280, HorizontalAlignment.Left);
    }
    private void buttonStart_Click(object sender, EventArgs e)
    {
      string argument = Application.StartupPath + "\\myfile" + fileIndex + ".txt";
      if (File.Exists(argument)==false)
      {
        File.CreateText(argument);
      }
      //设置要启动的应用程序名称及参数
      ProcessStartInfo ps = new ProcessStartInfo(fileName, argument);
      ps.WindowStyle = ProcessWindowStyle.Normal;
      fileIndex++;
      Process p = new Process();
      p.StartInfo = ps;
      p.Start();
      //等待启动完成，否则获取进程信息可能会失败
      p.WaitForInputIdle();
      RefreshListView();
    }
    private void buttonStop_Click(object sender, EventArgs e)
    {
      this.Cursor = Cursors.WaitCursor;
      //创建新的Process组件的数组,并将它们与指定的进程名称（Notepad）的所有进程资源相关联.
      Process[] myprocesses;
      myprocesses = Process.GetProcessesByName(Path.GetFileNameWithoutExtension(fileName));
      foreach (Process p in myprocesses)
      {
        //通过向进程主窗口发送关闭消息达到关闭进程的目的
        p.CloseMainWindow();
        //等待1000毫秒
        Thread.Sleep(1000);
        //释放与此组件关联的所有资源
        p.Close();
      }
      fileIndex = 0;
      RefreshListView();
      this.Cursor = Cursors.Default;
    }
    private void RefreshListView()
    {
      listView1.Items.Clear();
      //创建Process类型的数组,并将它们与系统内所有进程相关联
      Process[] processes;
      processes = Process.GetProcessesByName(Path.GetFileNameWithoutExtension(fileName));
      foreach (Process p in processes)
      {
        //将每个进程的进程名称、占用的物理内存以及进程开始时间加入listView中
        ListViewItem item = new ListViewItem(
          new string[]{
            p.Id.ToString(),
            p.ProcessName,
            string.Format("{0} KB", p.PrivateMemorySize64/1024.0f),
            string.Format("{0}",p.StartTime),
            p.MainModule.FileName
          });
        listView1.Items.Add(item);
      }
    }
    private void buttonRefresh_Click(object sender, EventArgs e)
    {
      RefreshListView();
    }
    private void Form1_Load(object sender, EventArgs e)
    {

    }
  }
}