C# MVC中sql到linq的转换

我无法从sql转换到linq。我已经附加了我的sql查询和模型

注意：我们需要使用where条件将国家和目的地以开头，并将国家id传递到目的地

SQL:

代码：

---

您可以尝试以下方法：

var result = context.Countries
    .Where
    (
        x=>
        x.Name.Contains('Sa') &&
        x.Destinations.Any(d=>d.DestinationName.Contains('sa'))
    )
    .Select
    (
        x=> new Country
        {
            Name = x.Name,
            Destinations = x.Destinations
                .Where(d=>d.DestinationName.Contains('sa'))
                .Select
                (
                    d=>new Destination
                    {
                        Id = d.Id,
                        DestinationID = d.DestinationID ,
                        DestinationName = d.DestinationName ,
                        CountryID = d.CountryID ,
                        State = d.State
                    }
                )
        }
    )

var csdf = (from d in Context.Destinations
            join c in Context.Countries on d.CountryId equals c.Id
            where
            c.Name.Contains("Sa") && d.DestinationName.Contains("sa")
            select new {
              c.Name,
              d.DestinationName,
              d.DestinationId
            });

---

您的sql to linq如下所示：

var result = context.Countries
    .Where
    (
        x=>
        x.Name.Contains('Sa') &&
        x.Destinations.Any(d=>d.DestinationName.Contains('sa'))
    )
    .Select
    (
        x=> new Country
        {
            Name = x.Name,
            Destinations = x.Destinations
                .Where(d=>d.DestinationName.Contains('sa'))
                .Select
                (
                    d=>new Destination
                    {
                        Id = d.Id,
                        DestinationID = d.DestinationID ,
                        DestinationName = d.DestinationName ,
                        CountryID = d.CountryID ,
                        State = d.State
                    }
                )
        }
    )

var csdf = (from d in Context.Destinations
            join c in Context.Countries on d.CountryId equals c.Id
            where
            c.Name.Contains("Sa") && d.DestinationName.Contains("sa")
            select new {
              c.Name,
              d.DestinationName,
              d.DestinationId
            });

---

这里有问题吗？