======Делегат IndexerEventHandler======
  * **Пространство имен:** [[developers:references:topomatic.foundationclasses.undo|Topomatic.FoundationClasses.Undo]]
  * **Сборка:** Topomatic.FoundationClasses (в Topomatic.FoundationClasses.dll)
=====Синтаксис=====
<code csharp>public delegate void IndexerEventHandler(object sender, IndexerEventArgs e)</code>
**Параметры**
  * //sender//
    * Тип: System.Object

  * //e//
    * Тип: [[developers:references:topomatic.foundationclasses.undo.indexereventargs|Topomatic.FoundationClasses.Undo.IndexerEventArgs]]