internal virtual void OnSourceChangedImpl(object oldSource, object newSource)
{
if (!string.IsNullOrEmpty(GetEventName()) && (string.Compare(GetEventName(), "Loaded", StringComparison.Ordinal) != 0))
{
if ((oldSource != null) && SourceTypeConstraint.IsAssignableFrom(oldSource.GetType()))
{
UnregisterEvent(oldSource, GetEventName());
}
if ((newSource != null) && SourceTypeConstraint.IsAssignableFrom(newSource.GetType()))
{
RegisterEvent(newSource, GetEventName());
}
}
}
internal virtual void OnSourceChangedImpl(object oldSource, object newSource)
{
if (String.IsNullOrEmpty(GetEventName()) || String.Equals(GetEventName(), loadedEventName, StringComparison.Ordinal))
{
return;
}
if (null != oldSource && SourceTypeConstraint.GetTypeInfo().IsAssignableFrom(oldSource.GetType().GetTypeInfo()))
{
UnregisterEvent(oldSource, GetEventName());
}
if (null == newSource || !SourceTypeConstraint.GetTypeInfo().IsAssignableFrom(newSource.GetType().GetTypeInfo()))
{
return;
}
RegisterEvent(newSource, GetEventName());
}
