하나의 키 열에 대해 두 개의 linq 쿼리를 결합하여 하나의 결과 집합을 얻습니다.

Question

여기에서 두 번째 쿼리의 결과에 첫 번째 쿼리 (한 열)를 결합하여 하나의 결과 집합을 얻고 싶습니다. 어떻게 그들을 병합 할 수 있습니다 (필요에 따라 CONCAT가 작동하지 않습니다 예 :. var에 쿼리 1 = query.concat (쿼리 1)가).

var query = (from PP in _db.paymentPlans 
        join APP in _db.Applications on PP.applicationID equals  APP.ApplicationId 
        join C in _db.Courses on APP.courseID equals C.courseID 
        where PP.active == true && APP.agentID == agentID 
        orderby C.courseID ascending 
        group new {C,PP} by new {C.courseID} into totalRecievable 
         select new PdPpAppCourseModel 
        { 
         courseID = totalRecievable.Key.courseID,        
         totalAmount = totalRecievable.Sum(x => x.PP.totalAmount) 
        }).ToList(); 


      var query1=(from PD in _db.paymentDetails 
        join PP in _db.paymentPlans on PD.paymentPlanID equals PP.paymentPlanID 
        join APP in _db.Applications on PP.applicationID equals APP.ApplicationId 
        join C in _db.Courses on APP.courseID equals C.courseID 
        where PP.active == true && APP.agentID == agentID 
        orderby C.courseID ascending 
        group new { C,PD } by new { C.courseID, C.cricosCode, C.courseName } into paymentsCourseWise 

        select new PdPpAppCourseModel 
        { 
         courseID = paymentsCourseWise.Key.courseID, 
         cricosCode = paymentsCourseWise.Key.cricosCode, 
         courseName = paymentsCourseWise.Key.courseName, 
         paidAmount = paymentsCourseWise.Sum(x => x.PD.paidAmount) 

        }).ToList(); 

Answer 1

당신이

var result = (from q1 in query1 
      join q in query on q1.courseID = q.courseID 
      select new PdPpAppCourseModel 
      { 
       courseID = q1.Key.courseID, 
       cricosCode = q1.Key.cricosCode, 
       courseName = q1.Key.courseName, 
       paidAmount = q1.Sum(x => x.PD.paidAmount), 
       totalAmount = q.totalAmount 

      }).ToList();