How to change this SQL query to LINQ? I've tried it several times, but it didn't work
SELECT Payment.ID, Payment.TotalGroupID, PaymentTrans.PaymentID, PaymentTrans.TotalGroupID as TotalGroupID1, PaymentTrans.TransferStatus
FROM PaymentTrans INNER JOIN Payment
ON (PaymentTrans.PaymentID = Payment.ID OR PaymentTrans.TotalGroupID = payment.TotalGroupID)
WHERE (PaymentTrans.TransferStatusis NULL OR (PaymentTrans.TransferStatus <> '01' and PaymentTrans.TransferStatus <> '02'))
and this is my try
var a= (from x in db.PaymentTransactions
join p in db.Payments
on
x.PaymentID equals p.ID
where x.TransferStatus== null || (x.TransferStatus!= "01" && x.TransferStatus!= "02")
select new { x, p }).ToList();
but it still wrong LINQ, because in my query I have 2 conditions in ON Clause. thanks
The answers above filter on both conditions, they should filter one of the conditions according to the question (PaymentID or TotalPaymentID). You can either write two seperate queries and use a union or use a Cartesian product before filtering.
var result = (from paymentTransaction in db.PaymentTransactions
join payment in db.Payments on paymentTransaction.PaymentID equals payment.ID
where paymentTransaction.TransferStatus == null || (paymentTransaction.TransferStatus != "01" && paymentTransaction.TransferStatus != "02")
select new { paymentTransaction, payment }).Union
(from paymentTransaction in db.PaymentTransactions
join payment in db.Payments on paymentTransaction.TotalGroupID equals payment.TotalGroupID
where paymentTransaction.TransferStatus == null || (paymentTransaction.TransferStatus != "01" && paymentTransaction.TransferStatus != "02")
select new { paymentTransaction, payment });
var cartResult = from paymentTransaction in db.PaymentTransactions
from payment in db.Payments
where paymentTransaction.PaymentID == payment.ID || paymentTransaction.TotalGroupID == payment.TotalGroupID
where paymentTransaction.TransferStatus == null || (paymentTransaction.TransferStatus != "01" && paymentTransaction.TransferStatus != "02")
select new { paymentTransaction, payment };