ComponentFactory.Krypton.Docking.KryptonDockingFloatspace.OnFloatspaceBeforePageDrag C# (CSharp) Метод

        private void OnFloatspaceBeforePageDrag(object sender, PageDragCancelEventArgs e)
        {
            // Validate the list of names to those that are still present in the floatspace
            List<KryptonPage> pages = new List<KryptonPage>();
            foreach (KryptonPage page in e.Pages)
                if (!(page is KryptonStorePage) && (FloatspaceControl.CellForPage(page) != null))
                    pages.Add(page);

            // Only need to start docking dragging if we have some valid pages
            if (pages.Count != 0)
            {
                KryptonDockingManager dockingManager = DockingManager;
                if (dockingManager != null)
                {
                    // If there is just a single visible cell
                    if (FloatspaceControl.CellVisibleCount == 1)
                    {
                        // And that visible cell has all the pages being dragged
                        KryptonWorkspaceCell cell = FloatspaceControl.FirstVisibleCell();
                        if (cell.Pages.VisibleCount == pages.Count)
                        {
                            // Get the owning floating window element
                            KryptonDockingFloatingWindow window = GetParentType(typeof(KryptonDockingFloatingWindow)) as KryptonDockingFloatingWindow;
                            if (window != null)
                            {
                                // Drag the entire floating window
                                dockingManager.DoDragDrop(e.ScreenPoint, e.ElementOffset, e.Control, window);

                                // Always take over docking
                                e.Cancel = true;
                                return;
                            }
                        }
                    }

                    // Add a placeholder for the cell that contains the dragged page, so the cell is not removed during dragging
                    KryptonWorkspaceCell firstCell = FloatspaceControl.CellForPage(e.Pages[0]);
                    if (firstCell != null)
                        firstCell.Pages.Add(new KryptonStorePage("TemporaryPage", "Floating"));

                    // Ask the docking manager for a IDragPageNotify implementation to handle the dragging operation
                    dockingManager.DoDragDrop(e.ScreenPoint, e.ElementOffset, e.Control, e.Pages);
                }
            }

            // Always take over docking
            e.Cancel = true;
        }