======Метод UndoCommand.Undo()======
  * **Пространство имен:** [[developers:references:topomatic.crs.ast|Topomatic.Crs.Ast]]
  * **Сборка:** Topomatic.Crs (в Topomatic.Crs.dll)
=====Синтаксис=====
<code csharp>public virtual ICommand Undo()</code>
**Возвращаемое значение**
  * Тип: [[developers:references:topomatic.foundationclasses.undo.icommand|Topomatic.FoundationClasses.Undo.ICommand]]