======Конструктор UndoCommand(ActConstruction)======
  * **Пространство имен:** [[developers:references:topomatic.crs.ast|Topomatic.Crs.Ast]]
  * **Сборка:** Topomatic.Crs (в Topomatic.Crs.dll)
=====Синтаксис=====
<code csharp>public  UndoCommand(ActConstruction obj)</code>
**Параметры**
  * //obj//
    * Тип: [[developers:references:topomatic.crs.ast.actconstruction|Topomatic.Crs.Ast.ActConstruction]]