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Hi Guys,

Using MVC3 ASPX engine.

Getting error on for each "The entity or complex type 'EPatient.Models.cls_Measurement' cannot be constructed in a LINQ to Entities query."

Already tried .AsEnuerable / .Tolist() / .AsQuerable

Please let us know the code how to remove this error.

<% foreach (var item in Model) { %>
                <%: Html.DisplayFor(modelItem => item.Measure) %>
                <%: Html.DisplayFor(modelItem => item.MeasureVal) %>
<% } %>

        public ViewResult Doctor(int LoginUser)
            EPatient.Models.EPatientEntitiesContext_Measurement dbMeasurement = new EPatient.Models.EPatientEntitiesContext_Measurement();
            var userlist = (from U in db.E_Users
                           where U.DoctorID == LoginUser
                           select U.UserID).ToList();
            IEnumerable<cls_Measurement> emplist = (from M in dbMeasurement.E_Measures
                                                    where M.Status == 1 
                                                    select new cls_Measurement { Measure = M.Measure, MeasureVal = M.MeasureVal, InsulinType = M.InsulinType, Insulin_amount = M.Insulin_amount, Weight = M.Weight, Height = M.Height, Min_pressure = M.Min_pressure, Max_pressure = M.Max_pressure, Hypoglycemia = M.Hypoglycemia, Test_value = M.Test_value, Comment = M.Comment }).AsQueryable();
            return View(emplist);  

Waiting for solution....!!!

Posted 28-Jun-13 5:44am

1 solution

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Solution 1

This is by design, EF doesn't allow you to project the results of a query onto a mapped entity. You can do use a DTO or anonymous type which doesn't inherit from the mapped entity

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