我如何建立一个LINQ谓词/动态.当网格属性不具有实体属性时，基于网格过滤的LINQ查询

我有一个网格传递给我过滤器。比如我有一个对象，比如

var filter = new Filter(){
   Member = "Titles",
   Operator = Filter.Operators.IsEqualTo,
   Value = "Developer"
};

然后我需要扩展一个IQueryable，为此，我使用dynamic。LINQ和有一个方法来应用这些过滤器:

private IQueryable<TReportClass> ApplyFilter(ReportFilter filter, IQueryable<TReportClass> baseQuery)
    {
        switch (filter.Operator)
        {
            case ReportFilter.Operators.Contains:
                baseQuery = baseQuery.Where(string.Format("{0}.Contains(@0)", filter.Member), filter.Value);
                break;
            case ReportFilter.Operators.DoesNotContain:
                baseQuery = baseQuery.Where(string.Format("!{0}.Contains(@0)", filter.Member), filter.Value);
                break;
            case ReportFilter.Operators.IsEqualTo:
                baseQuery = baseQuery.Where(string.Format("{0} = @0", filter.Member), filter.Value);
                break;
            case ReportFilter.Operators.IsNotEqualTo:
                baseQuery = baseQuery.Where(string.Format("{0} != @0", filter.Member), filter.Value);
                break;
            case ReportFilter.Operators.StartsWith:
                baseQuery = baseQuery.Where(string.Format("{0}.StartsWith(@0)", filter.Member), filter.Value);
                break;
            case ReportFilter.Operators.EndsWith:
                baseQuery = baseQuery.Where(string.Format("{0}.EndsWith(@0)", filter.Member), filter.Value);
                break;
            case ReportFilter.Operators.IsNull:
                baseQuery = baseQuery.Where(string.Format("{0} = NULL", filter.Member));
                break;
            case ReportFilter.Operators.IsNotNull:
                baseQuery = baseQuery.Where(string.Format("{0} != NULL", filter.Member));
                break;
            case ReportFilter.Operators.IsEmpty:
                baseQuery = baseQuery.Where(string.Format("string.IsNullOrEmpty({0})", filter.Member));
                break;
            case ReportFilter.Operators.IsNotEmpty:
                baseQuery = baseQuery.Where(string.Format("!string.IsNullOrEmpty({0})", filter.Member));
                break;
        }
        return baseQuery;
    }

然而，这只适用于非集合。我如何让它与集合一起工作?如果我有这个模型:

public class UserReport : Entity
{
    public string Name { get; set; }
    public string Email { get; set; }
    public List<string> Titles { get; set; }
}

和这个查询作为基础:

IQueryable<UserReport> baseQuery = MyDbContext.DbSet<User>.Select(user => new UserReport
        {
            Id = user.Id,
            Name = user.FirstName + " " + user.LastName,
            Email = user.Email,
            Titles = user.Positions.Select(apptment => apptment.Title).ToList()
        })

我可以这样调用:

IQueryable<UserReport> filteredQuery = ApplyFilters(filters, baseQuery);

我如何将上面的过滤器转换为LINQ，如:

baseQuery.Where(userReport => userReport.Titles.Any(title => title == "Developer")

动态LINQ可以做到吗?还是需要构建自己的谓词?如果有，我该怎么做?