======Метод ConventionalSigns.Contains(ConventionalSign)======
  * **Пространство имен:** [[developers:references:topomatic.alg.signs|Topomatic.Alg.Signs]]
  * **Сборка:** Topomatic.Alg (в Topomatic.Alg.dll)
=====Синтаксис=====
<code csharp>public virtual bool Contains(ConventionalSign item)</code>
**Параметры**
  * //item//
    * Тип: [[developers:references:topomatic.alg.signs.conventionalsign|Topomatic.Alg.Signs.ConventionalSign]]

**Возвращаемое значение**
  * Тип: System.Boolean