======Свойство SurfacePointsGroupArray.Keys======
  * **Пространство имен:** [[developers:references:topomatic.sfc|Topomatic.Sfc]]
  * **Сборка:** Topomatic.Sfc (в Topomatic.Sfc.dll)
=====Синтаксис=====
<code csharp>public ICollection<int> Keys { get; }</code>
**Значение свойства**
  * Тип: [[developers:references:system.collections.generic.icollection_1|System.Collections.Generic.ICollection]]<[[developers:references:system.int32|System.Int32]]>