LINQ Query返回重复项

Question

我有下面的代码应该将所选数据返回到我的视图，但是我遇到了来自reas.CarType的重复问题...

这是一段代码：

public JsonResult GetRegister()
        {
            using (FamilyRegisterContext db = new FamilyRegisterContext())
            {              

                var familyRegistarData = (from fag in db.FamiliyGroups
                                          from reas in db.CarsAndRealEstate

                                             where (fag.GroupedFamilyId == reas.GroupedFamilyId)

                                          select new
                                          {
                                              fag.FamilyGroupid,

                                              fag.FamilyName,
                                              fag.FamilyMemberName,
                                              fag.Year,
                                              fag.BankName,
                                              fag.Amount,
                                              reas.CarType,
                                              reas.ProductionYear,
                                              reas.RegistrationNumber,
                                              reas.Address,
                                              reas.Other
                                          }).ToList().Distinct();

    var distinct = familyRegistarData.GroupBy(s =>  s.FamilyMemberName).Select(y => y.First());

return new JsonResult { Data = distinct, JsonRequestBehavior = JsonRequestBehavior.AllowGet };

            }

        }[enter image description here][1]

在我添加GroupBy之前，我遇到了与FamilyMemberName相同的问题，但现在已经解决了..我现在唯一的问题是来自CarType的重复...

请帮助我卡住：）

＆＃34;更新与＃34;

 This is my angular view presentation
[2]: http://i.stack.imgur.com/juCwZ.png

这是一种表关系 http://tinypic.com/view.php?pic=35ch4t2&s=9#.Vo6pX4bR9aQ

这是我表格中的数据 http://tinypic.com/view.php?pic=2ev6xzb&s=9#.Vo6s44bR9aQ

正如我所看到的那样，CarType和地址是重复的......

Answer 1

我认为以下代码应该做你想要实现的目标：

 var distinct = familyRegistarData
                   .GroupBy(s => new { s.FamilyMemberName, s.CarType })
                   .Select(y => y.First());