ComponentFactory.Quicksilver.Layout.MetaElementCollection.Clear C# (CSharp) Method

        public override void Clear()
        {
            if (_isItemsHost)
                base.Clear();
            else
            {
                VerifyWriteAccess();

                // Make a copy of all contained elements
                UIElement[] elements = _externalChildren.ToArray();

                // Remove all the external list entries
                _externalChildren.Clear();

                // Instruct the visual parent it must measure with the change in state
                _visualParent.InvalidateMeasure();

                // Actual elements are removed from internal collection once removed animation completes
                OnUIElementsRemove(new UIElementsEventArgs(elements));
            }
        }