/// <summary> /// Gets the wall element. /// </summary> /// <exception cref="Exception">Selected Wall Element was found in Document</exception> private void GetWallElement() { clsWallFilter m_filter = new clsWallFilter(); Reference m_ref = _UiDoc.Selection.PickObject( ObjectType.Element, m_filter, "Select the target Wall. [Wall]"); WallElement = _Doc.GetElement(m_ref) as Wall; if (WallElement == null) { throw new Exception("Selected Wall Element was found in Document"); } }