View Family Type View Family Property

public ViewFamily ViewFamily { get; }

public ViewFamily GetViewFamily(Document doc, View view)
{
    ViewFamily viewFamily = ViewFamily.Invalid;

    ElementId viewTypeId = view.GetTypeId();
    ElementId viewTypeIdOne = new ElementId(1L);
    if (viewTypeId > viewTypeIdOne) // some views may not have a ViewFamilyType
    {
        ViewFamilyType viewFamilyType = doc.GetElement(viewTypeId) as ViewFamilyType;
        viewFamily = viewFamilyType.ViewFamily;
    }

    return viewFamily;
}