C#操作系统计划任务

首先需要引用system32下的taskschd.dll

测试环境：win8+vs2012+.net4.0

  1  /// <summary>
  2         /// 删除任务
  3         /// </summary>
  4         /// <param name="taskName"></param>
  5         private static void DeleteTask(string taskName)
  6         {
  7             TaskSchedulerClass ts = new TaskScheduler.TaskSchedulerClass();
  8             ts.Connect(null, null, null, null);
  9             ITaskFolder folder = ts.GetFolder("\");
 10             folder.DeleteTask(taskName, 0);
 11         }
 12 
 13         /// <summary>
 14         /// 获取所有任务
 15         /// </summary>
 16         public static IRegisteredTaskCollection GetAllTasks()
 17         {
 18             TaskSchedulerClass ts = new TaskSchedulerClass();
 19             ts.Connect(null, null, null, null);
 20             ITaskFolder folder = ts.GetFolder("\");
 21             IRegisteredTaskCollection tasks_exists = folder.GetTasks(1);
 22             return tasks_exists;
 23         }
 24 
 25         /// <summary>
 26         /// 任务是否存在
 27         /// </summary>
 28         /// <param name="taskName"></param>
 29         /// <returns></returns>
 30         public static bool IsExists(string taskName)
 31         {
 32             var isExists = false;
 33             IRegisteredTaskCollection tasks_exists = GetAllTasks();
 34             for (int i = 1; i <= tasks_exists.Count; i++)
 35             {
 36                 IRegisteredTask t = tasks_exists[i];
 37                 if (t.Name.Equals(taskName))
 38                 {
 39                     isExists = true;
 40                     break;
 41                 }
 42             }
 43             return isExists;
 44         }
 45 
 46         /// <summary>
 47         /// 创建任务
 48         /// </summary>
 49         /// <param name="creator"></param>
 50         /// <param name="taskName"></param>
 51         /// <param name="path"></param>
 52         /// <param name="starttime"></param>
 53         /// <param name="interval"></param>
 54         /// <param name="description"></param>
 55         /// <returns></returns>
 56         public static _TASK_STATE CreateTaskScheduler(string creator, string taskName, string path, string starttime, string interval, string description)
 57         {
 58             try
 59             {
 60                 if (IsExists(taskName))
 61                 {
 62                     DeleteTask(taskName);
 63                 }
 64 
 65                 //new scheduler
 66                 TaskSchedulerClass scheduler = new TaskSchedulerClass();
 67                 //pc-name/ip,username,domain,password
 68                 scheduler.Connect(null, null, null, null);
 69                 //get scheduler folder
 70                 ITaskFolder folder = scheduler.GetFolder("\");
 71 
 72                 //set base attr 
 73                 ITaskDefinition task = scheduler.NewTask(0);
 74                 task.RegistrationInfo.Author = creator;//creator
 75                 task.RegistrationInfo.Description = description;
 76 
 77                 //set trigger  (IDailyTrigger ITimeTrigger)
 78                 ITimeTrigger tt = (ITimeTrigger)task.Triggers.Create(_TASK_TRIGGER_TYPE2.TASK_TRIGGER_TIME);
 79                 tt.Repetition.Interval = interval;// format PT1H1M==1小时1分钟 设置的值最终都会转成分钟加入到触发器
 80                 tt.StartBoundary = starttime;//start time
 81 
 82                 //set action
 83                 IExecAction action = (IExecAction)task.Actions.Create(_TASK_ACTION_TYPE.TASK_ACTION_EXEC);
 84                 action.Path = path;
 85                 action.Arguments = "AB1";//运行程序时需要的参数，如果没有可以不写。
 86 
 87                 task.Settings.ExecutionTimeLimit = "PT0S"; //运行任务时间超时停止任务吗? PTOS 不开启超时
 88                 task.Settings.DisallowStartIfOnBatteries = false;//只有在交流电源下才执行
 89                 task.Settings.RunOnlyIfIdle = false;//仅当计算机空闲下才执行
 90 
 91                 IRegisteredTask regTask = folder.RegisterTaskDefinition(taskName, task,
 92                                                                     (int)_TASK_CREATION.TASK_CREATE,
 93                                                                     null, //user
 94                                                                     null, // password
 95                                                                     _TASK_LOGON_TYPE.TASK_LOGON_INTERACTIVE_TOKEN,
 96                                                                     "");
 97                 IRunningTask runTask = regTask.Run(null);
 98                 return runTask.State;
 99 
100             }
101             catch (Exception ex)
102             {
103                 throw ex;
104             }
105 
106         }

调用方法：

 1         private void button5_Click(object sender, EventArgs e)
 2         {
 3             //string a = WindowsIdentity.GetCurrent().Name;
 4             //string b = Environment.UserName;
 5             //string c = System.Net.Dns.GetHostName();
 6 
 7             string creator = "Hello";
 8             string taskName = "Hello.Task";
 9             string path = Application.StartupPath + "\aaaa.bat";
10             string interval = "PT1H1M";//格式 PT1H1M==1小时1分钟
11             string starttime = DateTime.Now.ToString("yyyy-MM-ddT00:00:00"); //格式 "2015-10-09T14:27:25";
12             string description = "";
13 
14             CreateTaskScheduler(creator, taskName, path, starttime, interval, description);
15         }