======Метод SurveyItemCollection<DirectionAngle>.Contains(DirectionAngle)======
  * **Пространство имен:** [[developers:references:topomatic.srv.systemclasses|Topomatic.Srv.SystemClasses]]
  * **Сборка:** Topomatic.Srv (в Topomatic.Srv.dll)
=====Синтаксис=====
<code csharp>public override bool Contains(DirectionAngle item)</code>
**Параметры**
  * //item//
    * Тип: [[developers:references:topomatic.srv.compilationsurvey.directionangle|Topomatic.Srv.CompilationSurvey.DirectionAngle]]

**Возвращаемое значение**
  * Тип: [[developers:references:system.boolean|System.Boolean]]