System.ComponentModel.DebugTypeDescriptor.ComponentEntry.FilterEvents C# (CSharp) Method

            internal EventDescriptorCollection FilterEvents(object component, Attribute[] attributes, EventDescriptorCollection events) {
                EventDescriptorCollection filteredEvents = events;

                if (component is IComponent) {
                    ITypeDescriptorFilterService tf = (ITypeDescriptorFilterService)GetService(component, typeof(ITypeDescriptorFilterService));
                    if (tf != null) {
                        Hashtable filterTable = new Hashtable(events.Count);
                        
                        if (events != null) {
                            foreach (EventDescriptor ev in events) {
                                filterTable[ev.Name] = ev;
                            }
                        }
                        
                        bool cache = tf.FilterEvents((IComponent)component, filterTable);
                        EventDescriptor[] temp = new EventDescriptor[filterTable.Values.Count];
                        filterTable.Values.CopyTo(temp, 0);
                        filteredEvents = new EventDescriptorCollection(temp, true);
                    }
                }
                
                if (attributes != null && attributes.Length > 0) {
                    ArrayList list = new ArrayList(filteredEvents);
                    FilterMembers(typeof(EventDescriptor), list, attributes);
                    EventDescriptor[] temp = new EventDescriptor[list.Count];
                    list.CopyTo(temp, 0);
                    filteredEvents = new EventDescriptorCollection(temp, true);
                }
                
                return filteredEvents;
            }