ComponentFactory.Krypton.Ribbon.KryptonRibbonGroupClusterDesigner.OnClearItems C# (CSharp) Method

        private void OnClearItems(object sender, EventArgs e)
        {
            if ((_ribbonCluster != null) && (_ribbonCluster.Ribbon != null))
            {
                // Use a transaction to support undo/redo actions
                DesignerTransaction transaction = _designerHost.CreateTransaction("KryptonRibbonGroupCluster ClearItems");

                try
                {
                    // Get access to the Items property
                    MemberDescriptor propertyItems = TypeDescriptor.GetProperties(_ribbonCluster)["Items"];

                    RaiseComponentChanging(propertyItems);

                    // Need access to host in order to delete a component
                    IDesignerHost host = (IDesignerHost)GetService(typeof(IDesignerHost));

                    // We need to remove all the buttons from the cluster group
                    for (int i = _ribbonCluster.Items.Count - 1; i >= 0; i--)
                    {
                        KryptonRibbonGroupItem item = _ribbonCluster.Items[i];
                        _ribbonCluster.Items.Remove(item);
                        host.DestroyComponent(item);
                    }

                    RaiseComponentChanged(propertyItems, null, null);
                }
                finally
                {
                    // If we managed to create the transaction, then do it
                    if (transaction != null)
                        transaction.Commit();
                }
            }
        }