WeifenLuo.WinFormsUI.Docking.DockPane.DockTo C# (CSharp) Method

        public void DockTo(DockPanel panel, DockStyle dockStyle)
        {
            if (panel != DockPanel)
                throw new ArgumentException(Strings.IDockDragSource_DockTo_InvalidPanel, nameof(panel));

            if (dockStyle == DockStyle.Top)
                DockState = DockState.DockTop;
            else if (dockStyle == DockStyle.Bottom)
                DockState = DockState.DockBottom;
            else if (dockStyle == DockStyle.Left)
                DockState = DockState.DockLeft;
            else if (dockStyle == DockStyle.Right)
                DockState = DockState.DockRight;
            else if (dockStyle == DockStyle.Fill)
                DockState = DockState.Document;
        }

        public void DockTo(DockPane pane, DockStyle dockStyle, int contentIndex)
        {
            if (dockStyle == DockStyle.Fill)
            {
                bool samePane = (Pane == pane);
                if (!samePane)
                {
                    Pane = pane;
                }

                if (contentIndex == -1 || !samePane)
                {
                    pane.SetContentIndex(Content, contentIndex);
                }
                else
                {
                    DockContentCollection contents = pane.Contents;
                    int oldIndex = contents.IndexOf(Content);
                    int newIndex = contentIndex;
                    if (oldIndex < newIndex)
                    {
                        newIndex += 1;
                        if (newIndex > contents.Count - 1)
                        {
                            newIndex = -1;
                        }
                    }
                    pane.SetContentIndex(Content, newIndex);
                }
            }
            else
            {
                DockPane paneFrom = DockPanel.DockPaneFactory.CreateDockPane(Content, pane.DockState, true);
                INestedPanesContainer container = pane.NestedPanesContainer;
                switch (dockStyle)
                {
                case DockStyle.Left:
                    paneFrom.DockTo(container, pane, DockAlignment.Left, 0.5);
                    break;

                case DockStyle.Right:
                    paneFrom.DockTo(container, pane, DockAlignment.Right, 0.5);
                    break;

                case DockStyle.Top:
                    paneFrom.DockTo(container, pane, DockAlignment.Top, 0.5);
                    break;

                case DockStyle.Bottom:
                    paneFrom.DockTo(container, pane, DockAlignment.Bottom, 0.5);
                    break;
                }

                paneFrom.DockState = pane.DockState;
            }
        }