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cannot save changes of courses if remove in edit httppost

ahmedsaahmedsa Posts: 13

Problem

when remove course then click submit not save changes although

it removed from client side by jquery

Details

in edit view for every employee i need to do changes by remove or add new courses for employee

if i add new courses then click submit button it save what i do

but if i remove course from courses then click submit it will not save courses i removed

so that i need to check what is wrong in my code

my code working without any problem but only have problem

i cannot save courses removed in database in employeecourse table when click submit

employeecourse table have Id,EmployeeId,CourseId

jquery remove client side attached with my question

code

my code as following

     [HttpPost]  
            public ActionResult Edit(EditEmployeeVm model)  
            {  
                var emp = db.Employees.FirstOrDefault(f => f.Id == model.Id);  
                foreach (var couseid in model.CourseIds)  
                {  
                    db.EmployeeCourses.Add(new EmployeeCourse { CourseId = couseid, EmployeeId = emp.Id });  
                    db.SaveChanges();  
                }  

                return View();  
    my(custom model) view model using for that  
     public class EditEmployeeVm  
        {  
            public int Id { set; get; }  
            public List<SelectListItem> Courses { get; set; }  
            public int[] CourseIds { set; get; }  
            public List<CourseVm> ExistingCourses { set; get; }  
        }  
        public class CourseVm  
        {  
            public int Id { set; get; }  
            public string Name { set; get; }  
        }  
    }  
     to show what i need clearly see image below

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