C#过滤对象集合

我正在编写一个方法，它根据以下过滤器返回 ProductPeriod 对象的集合:

DateTime? from 
DateTime? to 
bool? includeActive 
bool? includeInactive 

ProductPeriod 对象如下所示:

public class ProductPeriod 
{ 
    public int Id { get; set; } 
    public string Name 
    public DateTime StartDate { get; set; } 
    public DateTime EndDate { get; set; } 
    public bool IsActive { get; set; } 
} 

所以想法是，客户可以选择截止日期和/或起始日期和/或包括活跃期和/或不活跃期。这为过滤提供了相当多的场景，这构成了一个相当大的方法，我开始编写(但尚未完成):

public IEnumerable<ProductPeriod> GetFilteredProductPeriods(DateTime? from,     DateTime? to, bool? includeActive, bool? includeInactive) 
{             
    // 1. from date only 
    if(from.HasValue && to == null && includeActive == null && includeInactive == null) 
        return _entities.ProductPeriods.Where(x => x.StartDate >= from.Value).ToList(); 
 
    // 2. from and to date 
    if(from.HasValue && to.HasValue && includeActive == null && includeInactive == null) 
        return _entities.ProductPeriods.Where(x => x.StartDate >= from.Value && x.EndDate <= to.Value).ToList(); 
 
    // 3. to date only 
    if (to.HasValue && from == null && includeActive == null && includeInactive == null) 
        return _entities.ProductPeriods.Where(x => x.EndDate <= to.Value).ToList(); 
 
    // 4. from date and show active 
    if (from.HasValue && (includeActive != null && includeActive.Value) && to == null && includeInactive == null) 
        return _entities.ProductPeriods.Where(x => x.StartDate >= from.Value && x.IsActive).ToList(); 
 
    // 5. from, to and show active 
    if (from != null && to != null && (includeActive != null && includeActive.Value) && includeInactive == null) 
        return _entities.ProductPeriods.Where(x => x.StartDate >= from.Value && x.EndDate <= to.Value && x.IsActive).ToList(); 
 
    // 6. to date and show active 
    if (to.HasValue && (includeActive != null && includeActive.Value) && from == null && includeInactive == null) 
        return _entities.ProductPeriods.Where(x => x.EndDate <= to.Value && x.IsActive).ToList(); 
 
    // 7. .... and so on, so forth.. 
} 

我想知道是否有我不知道的更好/更智能的方法来做到这一点？ IE。某种通用的方式？ :-)

提前致谢。