data model problem - asp.net

Question

public ActionResult Index()
{
testEntities6 devicesEntities = new testEntities6();
List<DevicesModel> devicesModel = new List<DevicesModel>();
var device_query = from d in devicesEntities.device
join dt in devicesEntities.devicetype on d.DeviceTypeId equals dt.Id
join l in devicesEntities.location on d.Id equals l.DeviceId
join loc in devicesEntities.locationname on l.LocationNameId equals loc.Id
where l.DeviceId == d.Id
select new {
//devices
d.Id,
d.DeviceTypeId,
d.SerialNumber,
d.FirmwareRev,
d.ProductionDate,
d.ReparationDate,
d.DateOfLastCalibration,
d.DateOfLastCalibrationCheck,
d.CalCertificateFile,
d.Notes,
d.TestReportFile,
d.WarrantyFile,
d.CertificateOfOriginFile,
d.QCPermissionFile,
d.Reserved,
d.ReservedFor,
d.Weight,
d.Price,
d.SoftwareVersion,
//devicetype
dt.Name,
dt.ArticleNumber,
dt.Type,
//location
l.StartDate, //AS LastStartDate,
l.LocationNameId,
//locationname
Loc_name = loc.Name //AS CarrentLocation
};
foreach (var dv in device_query) {
devicesModel.Add(new DevicesModel(
//device
DeviceTypeId = dv.DeviceTypeId,
/*Why I have this error: The name 'DeviceTypeId' does not exist in the current context*/
...
));
}
return View(devicesModel);
}
Model:
public class DevicesModel
{
//device
public int deviceTypeId;
public int id;
public int serialNumber;
public string firmwareRev;
public DateTime productionDate;
public DateTime reparationDate;
public DateTime dateOfLastCalibration;
public DateTime dateOfLastCalibrationCheck;
public int calCertificateFile;
public string notes;
public int testReportFile;
public int warrantyFile;
public int certificateOfOriginFile;
public int qCPermissionFile;
public int BReserved;
public string reservedFor;
public double weight;
public int price;
public string softwareVersion;
//devicetype
public string name;
public string qrticleNumber;
public string type;
//location
public DateTime startDate;
public int locationNameId;
//locationname
public string loc_name;
public DevicesModel(){}
//device
public int DeviceTypeId{get;set;}
public int Id { get; set; }
public int SerialNumber { get; set; }
public string FirmwareRev { get; set; }
public DateTime ProductionDate { get; set; }
public DateTime ReparationDate { get; set; }
public DateTime DateOfLastCalibration { get; set; }
public DateTime DateOfLastCalibrationCheck { get; set; }
public int CalCertificateFile { get; set; }
public string Notes { get; set; }
public int TestReportFile { get; set; }
public int WarrantyFile { get; set; }
public int CertificateOfOriginFile { get; set; }
public int QCPermissionFile { get; set; }
public int bReserved { get; set; }
public string ReservedFor { get; set; }
public double Weight { get; set; }
public int Price { get; set; }
public string SoftwareVersion { get; set; }
//devicetype
public string Name { get; set; }
public string ArticleNumber { get; set; }
public string Type { get; set; }
//location
public DateTime StartDate { get; set; }
public int LocationNameId { get; set; }
//locationname
public string Loc_name { get; set; }
}

Answer 1

Its because you're creating an anonymous object in your linq "Select" clause. I think you want to create an instance of your DevicesModel class, e.g.
...
where l.DeviceId == d.Id
select new DevicesModel {
//devices
Id = d.Id,
...

Answer 2

I think you intend to use curly brackets instead of round brackets.
new DevicesModel
{
//device
DeviceTypeId = dv.DeviceTypeId,
...
}
or are you trying to use named arguments in C#4?