Revit.SDK.Samples.Selections.CS.SelectionManager.SelectionManager C# (CSharp) Method

        public SelectionManager(ExternalCommandData commandData)
        {
            m_commandData = commandData;
            m_application = m_commandData.Application;
            m_document = m_application.ActiveUIDocument;

            if (m_document.Document.IsFamilyDocument)
            {
                m_CreationBase = m_document.Document.FamilyCreate;
            }
            else
            {
                m_CreationBase = m_document.Document.Create;
            }
        }