# ICollapsibleSectionHolder interface

Namespace: [Rhino.UI.Controls](https://developer.rhino3d.com/api/rhinocommon/namespace/rhino.ui.controls.md) · Assembly: [RhinoCommon](https://developer.rhino3d.com/api/rhinocommon/assembly/rhinocommon.md)

```cs
public interface ICollapsibleSectionHolder : IWindow, IHasCppImplementation, IDisposable
```

## Properties

- [BackgroundColor](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.icollapsiblesectionholder/backgroundcolor.md)
- [BottomMargin](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.icollapsiblesectionholder/bottommargin.md)
- [EmptyText](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.icollapsiblesectionholder/emptytext.md)
- [LeftMargin](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.icollapsiblesectionholder/leftmargin.md)
- [RightMargin](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.icollapsiblesectionholder/rightmargin.md)
- [ScrollPosition](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.icollapsiblesectionholder/scrollposition.md)
- [SectionCount](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.icollapsiblesectionholder/sectioncount.md)
- [Sections](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.icollapsiblesectionholder/sections.md)
- [SettingsPathSubKey](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.icollapsiblesectionholder/settingspathsubkey.md)
- [TopMargin](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.icollapsiblesectionholder/topmargin.md)

## Methods

- [Add](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.icollapsiblesectionholder/add.md)
- [ExpandSection](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.icollapsiblesectionholder/expandsection.md)
- [IsSectionExpanded](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.icollapsiblesectionholder/issectionexpanded.md)
- [Remove](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.icollapsiblesectionholder/remove.md)
- [SectionAt](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.icollapsiblesectionholder/sectionat.md)
- [UpdateAllViews](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.icollapsiblesectionholder/updateallviews.md)

## Inherited Members

- From [IWindow](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.iwindow.md): [Caption](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.iwindow/caption.md), [Created](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.iwindow/created.md), [Enabled](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.iwindow/enabled.md), [Parent](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.iwindow/parent.md), [Shown](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.iwindow/shown.md), [Window](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.iwindow/window.md), [Move](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.iwindow/move.md)
- From [IHasCppImplementation](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.ihascppimplementation.md): [CppPointer](https://developer.rhino3d.com/api/rhinocommon/type/rhino.ui.controls.ihascppimplementation/cpppointer.md)