C# 服务管理器 源代码

C# 服务管理器 源代码

// 源程序参考：
// https://code.msdn.microsoft.com/Working-with-Windows-6ff7877c

using System;
using System.Collections.Generic;
using System.Windows.Forms;
// 需要手工在“解决方案资源管理器”下的“引用”中添加 "System.ServiceProcess"
using System.ServiceProcess;

namespace ServiceManager
{
    public partial class Form1 : Form
    {
        // 用来保存现在选择的服务实例
        private ServiceController msvc;
        private SortedList<string, ServiceController> controllers = new SortedList<string, ServiceController>();

        public Form1()
        {
            InitializeComponent();
        }

        private void EnumServices()
        {
            // 获取可用的服务列表并将它们装入 listView
            try
            {
                toolStrip1.Text = "添加服务列表，请稍候 . . . ";

                lvServices.Items.Clear();

                if (controllers != null)
                    controllers = new SortedList<string, ServiceController>();

                ServiceController[] services = ServiceController.GetServices();
                foreach (ServiceController controller in services)
                {
                    // controller.ServiceName 服务名称
                    var _with1 = lvServices.Items.Add(controller.DisplayName);
                    _with1.SubItems.Add(controller.Status.ToString());
                    _with1.SubItems.Add(controller.ServiceType.ToString());
                    controllers.Add(controller.DisplayName, controller);
                }
            }
            catch (Exception exp)
            {
                MessageBox.Show("不能列举服务. ");
                // System.Diagnostics.Trace.WriteLine("不能列举服务. ");
            }
            finally
            {
                toolStrip1.Text = "已就绪";
            }
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            EnumServices();
        }

        private void UpdateServiceStatus()
        {
            // 检查每个服务
            try
            {
                toolStrip1.Text = "检查服务状态 . . .";
                foreach (ListViewItem item in lvServices.Items)
                {
                    msvc = controllers[item.Text];
                    msvc.Refresh();
                    item.SubItems[1].Text = msvc.Status.ToString();
                }
                UpdateUIForSelectedService();
            }
            catch (Exception exp)
            {
                MessageBox.Show(exp.Message, exp.Source, MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            finally
            {
                toolStrip1.Text = "已就绪";
            }
        }

        private void UpdateUIForSelectedService()
        {
            // 依据被选择的服务项修改界面上的按钮状态.
            string strName = null;

            try
            {
                if (lvServices.SelectedItems.Count == 1)
                {
                    strName = lvServices.SelectedItems[0].SubItems[0].Text;
                    msvc = controllers[strName];
                    var _with2 = msvc;
                    lvServices.SelectedItems[0].SubItems[1].Text = _with2.Status.ToString();
                    // 如果它是停止状态，我们应该可以启动它
                    this.cmdStart.Enabled = (_with2.Status == ServiceControllerStatus.Stopped);
                    // 确定我们可以停止它，而且它现在并未停止
                    this.cmdStop.Enabled = (_with2.CanStop && (!(_with2.Status == ServiceControllerStatus.Stopped)));
                    // 确定我们可以暂停它，而且它现在并未暂停
                    this.cmdPause.Enabled = (_with2.CanPauseAndContinue && (!(_with2.Status == ServiceControllerStatus.Paused)));
                    // 如果它是暂停状态，我们应该可以继续运行它
                    this.cmdResume.Enabled = (_with2.Status == ServiceControllerStatus.Paused);
                }
            }
            catch (Exception exp)
            {
                MessageBox.Show("不能更新用户界面.", this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void cmdPause_Click(object sender, EventArgs e)
        {
            try
            {
                msvc.Pause();
                msvc.WaitForStatus(ServiceControllerStatus.Paused);
                UpdateUIForSelectedService();
            }
            catch (Exception exp)
            {
                MessageBox.Show("不能暂停服务.", this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void cmdResume_Click(object sender, EventArgs e)
        {
            try
            {
                msvc.Continue();
                msvc.WaitForStatus(ServiceControllerStatus.Running);
                UpdateUIForSelectedService();
            }
            catch (Exception exp)
            {
                MessageBox.Show("不能继续服务.", this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void cmdStart_Click(object sender, EventArgs e)
        {
            try
            {
                msvc.Start();
                msvc.WaitForStatus(ServiceControllerStatus.Running);
                UpdateUIForSelectedService();
            }
            catch (Exception exp)
            {
                MessageBox.Show("不能启动服务.", this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void cmdStop_Click(object sender, EventArgs e)
        {
            try
            {
                msvc.Stop();
                msvc.WaitForStatus(ServiceControllerStatus.Stopped);
                UpdateUIForSelectedService();
            }
            catch (Exception exp)
            {
                MessageBox.Show("不能停止服务.", this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void lvServices_SelectedIndexChanged(object sender, EventArgs e)
        {
            UpdateUIForSelectedService();
        }

        private void cmdExit_Click(object sender, EventArgs e)
        {
            Close();
        }

        private void CmdRefresh_Click(object sender, EventArgs e)
        {
            UpdateServiceStatus();
        }
    }
}

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