public void RegisterActivity(RecurringActivity activity)
{
if (this.registeredActivities.Contains(activity))
{
throw new InvalidOperationException("This activity is already registered.");
}
this.registeredActivities.Add(activity);
}
public void RegisterActivity(RecurringActivity activity)
{
if (this.registeredActivities.Contains(activity))
{
throw new InvalidOperationException("This activity is already registered.");
}
this.registeredActivities.Add(activity);
}
public bool UnregisterActivity(RecurringActivity activity)
{
return this.registeredActivities.Remove(activity);
}
public bool UnregisterActivity(RecurringActivity activity)
{
return(this.registeredActivities.Remove(activity));
}