public void Listen(ModestTree.Util.Action <TParam1, TParam2, TParam3, TParam4, TParam5> listener)
{
Assert.That(!_listeners.Contains(listener),
() => "Tried to add method '{0}' to signal '{1}' but it has already been added"
.Fmt(listener.ToDebugString(), this.GetType().Name));
_listeners.Add(listener);
}
public void Unlisten(ModestTree.Util.Action <TParam1, TParam2, TParam3, TParam4, TParam5> listener)
{
bool success = _listeners.Remove(listener);
Assert.That(success,
() => "Tried to remove method '{0}' from signal '{1}' without adding it first"
.Fmt(listener.ToDebugString(), this.GetType().Name));
}