如何使用taskschd.dll库从任务计划程序中查找所有正在运行和就绪的任务

Question

ITaskService s = new TaskSchedulerClass();

s.Connect(
    this.ControllerName, 
    Configuration.UserName, 
    Configuration.Domain, 
    Configuration.Password);

ITaskFolder tf = s.GetFolder("\\");

IRegisteredTaskCollection allTask = null;

IRunningTaskCollection allTaskRunning  = s.GetRunningTasks(0);

我可以使用IRunningTaskCollection获取正在运行的任务，但找不到就绪任务。

Answer 1

遗憾的是，没有一种方便的方法，但你可以编写自己的方法。使用递归遍历任务文件夹层次结构。像这样......

private static List<IRegisteredTask> GetReadyAndRunningTasks(
    ITaskFolder folder, 
    List<IRegisteredTask> readyAndRunningTasks = null)
{
    if (readyAndRunningTasks == null)
    {
        readyAndRunningTasks = new List<IRegisteredTask>();
    }

    IRegisteredTaskCollection tasks = folder.GetTasks(flags: 0);

    foreach (IRegisteredTask task in tasks)
    {
        if (task.State == _TASK_STATE.TASK_STATE_READY
            || task.State == _TASK_STATE.TASK_STATE_RUNNING)
        {
            readyAndRunningTasks.Add(task);
        }
    }

    foreach (ITaskFolder subFolder in folder.GetFolders(flags: 0))
    {
        GetReadyAndRunningTasks(subFolder, readyAndRunningTasks);
    }

    return readyAndRunningTasks;
}

然后像这样称呼它......

List<IRegisteredTask> readyAndRunningTasks 
    = GetReadyAndRunningTasks(s.GetFolder(Path: "\\"));