实验3：进程管理练习

通过本实验，熟悉和掌握Process类的使用。

1、创建一个WPF应用程序项目

2、将App.xaml中的Application.Resources节内容改为

3、修改MainWindow.xaml及代码隐藏类

MainWindow.xaml

MainWindow.xaml.cs主要内容

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace WpfApp1
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        Button oldButton = new Button();
        public MainWindow()
        {
            InitializeComponent();
        }
        private void button_Click(object sender, RoutedEventArgs e)
        {
            Button btn = e.Source as Button;
            btn.Foreground = Brushes.Black;
            oldButton.Foreground = Brushes.Black;
            oldButton = btn;
            frame1.Source = new Uri(btn.Tag.ToString(), UriKind.Relative);
        }
    }
}

修改Page1.xaml的核心代码

Page1.xaml.cs的核心代码

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace WpfApp1.Examples
{
    /// <summary>
    /// Page1.xaml 的交互逻辑
    /// </summary>
    public partial class Page1 : Page
    {
        int fileIndex = 1;
        string fileName = "Notepad";
        List<Data> list = new List<Data>();
        public Page1()
        {
            InitializeComponent();
        }

        private void BtnStart_Click(object sender, RoutedEventArgs e)
        {
            string argument = Environment.CurrentDirectory + "\\myfile" + (fileIndex++) + ".txt";
            if (File.Exists(argument)==false)
            {
                File.CreateText(argument);
            }
            Process p = new Process();
            p.StartInfo.FileName = fileName;
            p.StartInfo.Arguments = argument;
            p.StartInfo.UseShellExecute = false;
            p.StartInfo.WindowStyle = ProcessWindowStyle.Normal;
            p.Start();
            p.WaitForInputIdle();
            RefreshProcessInfo();
        }

        private void BtnStop_Click(object sender, RoutedEventArgs e)
        {
            this.Cursor = Cursors.Wait;
            Process[] myprocesses;
            myprocesses = Process.GetProcessesByName(fileName);
            foreach (Process p in myprocesses)
            {
                using (p)
                {
                    p.CloseMainWindow();
                    Thread.Sleep(1000);
                    p.WaitForExit();
                }
            }
            fileIndex = 0;
            RefreshProcessInfo();
            this.Cursor = Cursors.Arrow;

        }
        private void RefreshProcessInfo()
        {
            dataGrid1.ItemsSource = null;
            list.Clear();
            Process[] processes = Process.GetProcessesByName(fileName);
            foreach (Process p in processes)

            {
                list.Add(new Data() {
                   Id = p.Id,
                   ProcessName = p.ProcessName,
                   TotalMemory = string.Format("{0,10:0} KB" ,p.WorkingSet64 / 1024d),
                   StartTime=p.StartTime.ToString("yyyy-M-d HH:mm:ss"),
                   FileName=p.MainModule.FileName
                });

            }
            dataGrid1.ItemsSource = list;
        }
    }
    public class Data
    {
        public int Id { get; set; }
        public string ProcessName { get; set; }
        public string TotalMemory { get; set; }
        public string StartTime { get; set; }
        public string FileName { get; set; }
    }
}

实验结果

实验结果能启动多个进程，并停止所有进程

通过本实验，对Process类的使用，启动进程，停止进程，获取所有进程信息，获取指定进程信息，更加熟练和掌握了进程管理知识。