“对象”不包含“ rxDetail”的定义

Question

Controller code

public ActionResult Index()
        {
            var data = (from pd in db.Prescription_Details join md in db.Medicine_Details 
                        on pd.Medicine_Id equals md.Medicine_Id 
                        select new MyPrescription {rxDetail=pd.Rx_Detail_Id , medicineName=md.Medicine_Name , dosageFrequency= pd.Dosage_Frequency}).ToList();  

            var prescs = db.Prescription_Details.Select(x => x.Prescription.Doctor_Details.Doctor_Name).Distinct().ToList();
            //entity
            ViewBag.prescriptions = prescs;
            ViewBag.dd = data;
            return View();
        }

Razor code 
 @foreach (var item in ViewBag.dd)
                                        {
                                            <tr>
                                                <td>@item.rxDetail</td>
                                                <td>@item.medicineName</td>
                                                <td>@item.dosageFrequency</td>
                                            </tr>
                                        }

Apart from making new class MyPrescriptions I am getting this error . Is there some other way to proceed with it ?

Answer 1

Is your MyPrescription class internal? Razor views are compiled into a separate assembly, so internal classes are not accessible there.

Trying to access properties of an inaccessible class from a dynamic variable throws the exception you get.

Answer 2

ViewBag internally stores defined properties value as Object. It is actually a dynamic type defined by ExpandoObject that stored the data as dictionary. Once you convert any custom object to type object then it won't know underlying properties of custom object unless you explicitly cast it.

So all you need to do is cast it to your custom object before using:

@foreach (var item in ViewBag.dd as MyPrescription)

@foreach (MyPrescription item in ViewBag.dd)