======Событие SurveyItemCollection<T>.BeforeInsert======
  * **Пространство имен:** [[developers:references:topomatic.srv.systemclasses|Topomatic.Srv.SystemClasses]]
  * **Сборка:** Topomatic.Srv (в Topomatic.Srv.dll)
=====Синтаксис=====
<code csharp>public event EventHandler<IndexerEventArgs> BeforeInsert</code>