public void SetTaskStates(IEnumerable <ITaskState> taskStates)
{
if (TaskStates == null)
{
TaskStates = new ObservableCollection <ITaskState>();
}
if (CheckableTaskStates == null)
{
CheckableTaskStates = new ObservableCollection <Checkable <ITaskState> >();
}
if (taskStates != null)
{
TaskStates.Clear();
TaskStates.AddRange(taskStates);
CheckableTaskStates.AddRange(Checkable.Create(taskStates, true));
}
}