Last 6 Payments - entity-framework

Question

I need to get the last six payments from a schema that consists of just
Contribution Id
DUE Date
Amount
The payments spread over 7 years and I need to get the most current last six payments only I thought this would do it it as it follows my sql
SELECT TOP 6 [ID]
,[customerInfo]
,[IVACODE]
,[Contribution]
,[DUE_DATE]
,[isActive]
,[isDeleted]
FROM [portal].[dbo].[tblPortalContributionSchedule]
where customerInfo='01F6B68B-6FC2-4F9D-B586-6934B8D6C979'
and DUE_DATE <='2016/09/26'
ORDER BY DUE_DATE DESC
Linq Version
List<tblPortalContributionSchedule> _contributions
= portalEntities.tblPortalContributionSchedules
.Where(a => a.customerInfo == _customerId
&& a.isDeleted == false
&& a.DUE_DATE <=Convert.ToDateTime("2016/09/26"))
.Take(6)
.OrderByDescending(o => o.DUE_DATE)
.ToList();
foreach (var contribution in _contributions)
{
AllPayments.Add(new Payments(contribution.ID, Convert.ToDecimal(contribution.Contribution), Convert.ToDateTime(contribution.DUE_DATE), false));
}
But its not producing the same results as per below
Sorry people i require the answer in linq i need to no is that the correct way of doing it i getting less than exepected
Edit 1
This is the query I have so far but I still am not getting the same results as my sql script
List<tblPortalContributionSchedule> _contributions =
portalEntities.tblPortalContributionSchedules.Where(a => a.customerInfo ==
_customerId && a.isDeleted == false && a.DUE_DATE
<=Convert.ToDateTime("2016/09/26")).OrderByDescending(o =>
o.DUE_DATE).Take(6).ToList();
Edit 2
To show the code that I showed in the video
public List<Payments> getAllPayments(Guid _customerId)
{
List<Payments> AllPayments = new List<Payments>();
List<tblPortalPayment> _payments = portalEntities.tblPortalPayments.Where(a => a.CustomerId == _customerId && a.isDeleted == false).ToList();
foreach (var payment in _payments)
{
AllPayments.Add(new Payments(payment.id, Convert.ToDecimal(payment.paymentDue), Convert.ToDateTime(payment.paymentDate), Convert.ToBoolean(payment.isinArrears)));
}
List<tblPortalContributionSchedule> _contributions = portalEntities.tblPortalContributionSchedules.Where(a => a.customerInfo == _customerId && a.isDeleted == false && a.DUE_DATE<= Convert.ToDateTime("2016/09/26")).OrderByDescending(o => o.DUE_DATE).Take(6).ToList();
foreach (var contribution in _contributions)
{
AllPayments.Add(new Payments(contribution.ID, Convert.ToDecimal(contribution.Contribution), Convert.ToDateTime(contribution.DUE_DATE), false));
}
var result = AllPayments.OrderByDescending(o => o.paymentDate).ToList();
return AllPayments.OrderByDescending(o => o.paymentDate).ToList();
}

Answer 1

You can try it as shown below and let us know the result.
var dueDateFilter = new DateTime(2016, 09, 26);
List<tblPortalContributionSchedule> _contributions =
portalEntities.tblPortalContributionSchedules
.Where(a => a.customerInfo == _customerId
&& a.isDeleted == false
&& a.DUE_DATE <= dueDateFilter)
.OrderByDescending(o => o.DUE_DATE)
.Take(6)
.ToList();

Answer 2

Try using this query
SELECT [ID],
[customerInfo],
[IVACODE],
[Contribution],
[DUE_DATE],
[isActive],
[isDeleted]
FROM [portal].[dbo].[tblPortalContributionSchedule]
where customerInfo='01F6B68B-6FC2-4F9D-B586-6934B8D6C979'
and ROWNUM <= 6
ORDER BY DUE_DATE DESC