WeifenLuo.WinFormsUI.Docking.DockPane.CloseContent C# (CSharp) Метод

        internal void CloseContent(IDockContent content)
        {
            if (content == null)
                return;

            if (!content.DockHandler.CloseButton)
                return;

            DockPanel dockPanel = DockPanel;

            dockPanel.SuspendLayout(true);

            try
            {
                if (content.DockHandler.HideOnClose)
                {
                    content.DockHandler.Hide();
                    NestedDockingStatus.NestedPanes.SwitchPaneWithFirstChild(this);
                }
                else
                    content.DockHandler.Close();
            }
            finally
            {
                dockPanel.ResumeLayout(true, true);
            }
        }

        protected override void OnMouseDown(MouseEventArgs e)
        {
            base.OnMouseDown(e);

            int index = HitTest();

            if (index != -1)
            {
                if (e.Button == MouseButtons.Middle)
                {
                    // Close the specified content.
                    IDockContent content = Tabs[index].Content;
                    DockPane.CloseContent(content);
                }
                else
                {
                    IDockContent content = Tabs[index].Content;
                    if (DockPane.ActiveContent != content)
                    {
                        DockPane.ActiveContent = content;
                    }
                }
            }

            if (e.Button == MouseButtons.Left)
            {
                var dragSize = SystemInformation.DragSize;
                _dragBox = new Rectangle(new Point(e.X - (dragSize.Width / 2),
                                                   e.Y - (dragSize.Height / 2)), dragSize);
            }
        }