列出在启动和登录时触发的计划任务C＃

Question

I am using http://www.codeproject.com/KB/cs/tsnewlib.aspx library to list task which are triggered at log on or startup

ScheduledTasks st = new ScheduledTasks();

            foreach (string taskName in st.GetTaskNames())
            {
                using (Task task = st.OpenTask(taskName))
                {

                        listBox1.Items.Add(taskName);

                }
            }

What condition shall I use to list only startup or logon tasks

Answer 1

You need to enumerate the Triggers for each task and either do something with the task, store it for later, or store the name in a list of your filtered Task object names. Your selection process is to check if Trigger is either a OnLogonTrigger or a OnSystemStartTrigger then you can select that task into your final List.

eg

List<string> startupAndLogonTasks = new List<string>();
foreach (string taskName in st.GetTaskNames()) {
    using (Task task = st.OpenTask(taskName)) {
        if (task != null) {
            foreach (Trigger tr in task.Triggers) {
                if (tr is OnSystemStartTrigger || tr is OnLogonTrigger) {
                    //  Do something, such as log the name, or store the task for later
                    startupAndLogonTasks.Add(task.Name);
                    //  break out and move to the next task
                    break;
                }
            }
        }
    }
}

Of course, if you want tasks that only have the logon or startup type, then also check you only have 1 trigger in the Triggers collection.