[CLOSED] Stop a Task in TaskManager from Code Behind

[Peter.Treier]

Hi everybody
first Time that I use the TaskManager, therefore this Question.

Here's my Markup

    <ext:TaskManager ID="mainTaskManager" runat="server">
      <Tasks>
        <ext:Task
          TaskID="taskRefresh"
          Interval="60000">
          <DirectEvents>
            <Update OnEvent="LoadData">
              <EventMask
                ShowMask="true"
                Target="CustomTarget"
                CustomTarget="={#{mainChart}}" />
            </Update>
          </DirectEvents>
        </ext:Task>
      </Tasks>
    </ext:TaskManager>

I'd like to stop this 'taskRefresh' Task from Code Behind...

I tried this code - didn't work

    internal void SetRefreshInterval(TaskManager manager)
    {
      var interval = GetRefreshIntervallFromSetting(WidgetClass, WidgetInstance);
      var task     = manager.Tasks.FirstOrDefault(t => t.TaskID == "taskRefresh");

      if (task != null && interval == 0)
      {
        manager.StopTask("taskRefresh");
        return;
      }
      if (task != null)
      {
        manager.StartTask("taskRefresh");
        task.Interval = interval;
      }
    }

What's wrong here ?

Thanks for your Help - Peter