public static void AddHandlerIfDelegateListDoesNotContainsIt(IVertex baseVertex, VertexChange _delegate)
{
if (baseVertex != null && !GeneralUtil.DoDelegateListContainDelegate(baseVertex.GetChangeDelegateInvocationList(), _delegate))
{
baseVertex.Change += _delegate;
}
}
private static void RemoveVertexChangeListeners_ForVertex(IVertex Vertex, IVertex PlatformClassVertex, VertexChange action)
{
Delegate[] delegates = Vertex.GetChangeDelegateInvocationList();
if (delegates != null)
{
foreach (Delegate d in delegates)
{
if (d.Target is PlatformClassVertexChangeListener)
{
PlatformClassVertexChangeListener list = (PlatformClassVertexChangeListener)d.Target;
if (list.PlatformClassVertex == PlatformClassVertex)
{
list.Change -= action;
Vertex.Change -= list.Listener;
}
}
}
}
}