比较两个值之间的复杂子查询

Question

I have repository with students and I want to get some students who have grades count in between 0 and 2.

This is my code:

_unitOfWork.Repository<Student>().Get(o => o.OrganizationId == organizationId
                && o.Grades.Where( o1 => o1.LastVersion
                        && o1.Type == 5
                        && o1.Value == 1).Count() > 0 
                && o.Grades.Where( o1 => o1.LastVersion
                        && o1.Type == 5
                        && o1.Value == 1).Count() <= 2 );

This code is working, but my question is how to change this query with less code.

Is there any way to replace Count with some variable and not use it two times in query?

Answer 1

something like this?

 var values = Enumerable.Range(1, 2);

 _unitOfWork.Repository<Student>().Get(o => o.OrganizationId == organizationId
            && values.Contains(
                o.Grades.Where( o1 => o1.LastVersion
                    && o1.Type == 5
                    && o1.Value == 1).Count()
               ));