Execute Sql query in entity framework - asp.net-mvc

Question

I have a jquery data table in which i want to show a summarise report generated from sql query, but i am not able to do it, it shows error in the query. The summarise report consist of all month name and number of entries in every month.
Error:
System.Data.Entity.Core.EntityCommandExecutionException: 'The data reader is incompatible with the specified 'DHIFeedbackModel.FeedBack'. A member of the type, 'FeedbackUserName', does not have a corresponding column in the data reader with the same name.'
public ActionResult LoadData()
{
using (DHIFeedbackEntities2 Ms = new DHIFeedbackEntities2())
{
//var summary = Ms.FeedBacks.SqlQuery("select * from [DHIFeedback].[dbo].[FeedBack]").ToList<FeedBack>();
var summary = Ms.FeedBacks.SqlQuery(
#"SELECT *
FROM
(
SELECT
YEAR([FeedBackDate])[Year],DATENAME(MONTH, [FeedBackDate])[Month],
COUNT(1)[FeedbackID]
FROM
[DHIFeedback].[dbo].[FeedBack]
GROUP BY
YEAR([FeedBackDate]
),
DATENAME(MONTH, [FeedBackDate])) AS Monthlyupdate
PIVOT(SUM([FeedbackID]) FOR Month IN([January],[February],[March],[April],[May],[June],[July],[August],[September],[October],[November],[December])) AS MNamePivot
order by 1,2"
).FirstOrDefault<FeedBack>();
return Json(new { data = summary }, JsonRequestBehavior.AllowGet);
}
}
and the javascript:
$(document).ready(function () {
$('#Summary').DataTable({
"processing": true,
"ajax": {
"url": "/Summary/LoadData",
"type": "GET",
"datatype": "json",
},
"lengthMenu": [
[5, 10, 25, 50, 100, -1],
[5, 10, 25, 50, 100, "All"]
],
"autoWidth": true,
"responsive": true,
"lengthChange": true,
"ordering": true,
"fnRowCallback": function (nRow, aData, iDisplayIndex) {
var oSettings = this.fnSettings();
$("td:first", nRow).html(oSettings._iDisplayStart + iDisplayIndex + 1);
return nRow;
},
"columns": [
{ "data":"Year", "autoWidth": true },
{ "data":"January", "autoWidth": true },
{ "data":"February", "autoWidth": true },
{ "data":"March", "autoWidth": true },
{ "data":"April", "autoWidth": true },
{ "data":"May", "autoWidth": true },
{ "data":"June", "autoWidth": true },
{ "data":"July", "autoWidth": true },
{ "data":"August", "autoWidth": true },
{ "data":"September", "autoWidth": true },
{ "data":"October", "autoWidth": true },
{ "data":"November", "autoWidth": true },
{ "data":"December", "autoWidth": true }
]
});
});
public partial class FeedBack
{
public int FeedbackID { get; set; }
public string FeedbackUserName { get; set; }
public string FeedBackUserEmailID { get; set; }
public string FeedBackComment { get; set; }
public string Designation { get; set; }
public string Organization { get; set; }
public string ContactNo { get; set; }
public string City { get; set; }
public Nullable<System.DateTime> FeedBackDate { get; set; }
public Nullable<double> IsPublished { get; set; }
public string Reply { get; set; }
public Nullable<double> IsReplied { get; set; }
public Nullable<System.DateTime> ReplyDate { get; set; }
public string ReplyBy { get; set; }
public string Sector { get; set; }
public Nullable<int> Status { get; set; }
public int Year { get; set; }
public int January { get; set; }
public int February { get; set; }
public int March { get; set; }
public int April { get; set; }
public int May { get; set; }
public int June { get; set; }
public int July { get; set; }
public int August { get; set; }
public int September { get; set; }
public int October { get; set; }
public int November { get; set; }
public int December { get; set; }
public string Monthlyupdate { get; set; }
public string Month{ get; set; }
[NotMapped]
public List<FeedBack> FeedBackCollection { get; set; }

Answer 1

the error means that the ORM is expecting a resultset comprising each and every property of FeedBacks including the one named FeedbackUserName
So you need to edit the select clause of your sql to return all the expected columns.
or you may use
Ms.Database.SqlQuery<SomeType>(
"your query here").ToList();
where SomeType is :
public class SomeType {
public int Year {get; set;}
//... and/or all the pivoted columns
}