Controlling visibility of elements in a dock panel

SOLUTION
Every dock panel (like DockPanel, UserDockControl, or any IDockable window with DockType = DockType.ToolWindow) implements the IToolWindowLayoutController interface which is responsible for the visibility of ToolWindow elements like caption, window position dropdown button, pin/unpin button, close button, and the tabstrip.

The following properties control the behavior and visibility of the ToolWindow elements:

• CaptionVisible controls the visibility of the whole tool window caption element:

  DockPanel  dockPanel  =   new   DockPanel();

  dockPanel.CaptionVisible  =   false  ;  //default value is true

    
• CloseButtonVisible is the controller of the tool window's Close button which is used to hide dock panel:

  DockPanel  dockPanel  =   new   DockPanel();

  dockPanel.CloseButtonVisible  =   false  ;  //default value is true

   
• HideButtonVisible is the property to change the visibility of the Autohide dock panel button: 

  DockPanel  dockPanel  =   new   DockPanel();

  dockPanel.HideButtonVisible  =   false  ;  //default value is true

    
• DropDownButtonVisible controls the Dropdown menu button of the tool window, used to show the available window position types: 

  DockPanel  dockPanel  =   new   DockPanel();

  dockPanel.DropDownButtonVisible  =   false  ;  //default value is true

      
• TabStripVisible controls the bottom tabstrip control of the tool window. This tabstrip is used to control the active dock panel when there is more than one panel on the form:

  DockPanel  dockPanel  =   new   DockPanel();

  dockPanel.TabStripVisible  =   false  ;  //default value is true

   
  Note: By default the TabStripVisible property is set to true and when the dock panel is the only one in the container, the bottom tabstrip control is visible. If you want the VS-like behavior, you must set it to false.
  The TabStripVisible property works on a single dock panel only. When we have more than one dock panel in same container, the tabstrip is always visible.