Linq Expression Chain Syntax for In Query

Question

I have a query that I cannot seem to replicate in expression method chain syntax. I have two tables "User" and "UserPayment". User and UserPayment have a one to many relation i.e. One User can have many UserPayments.

Just wondering what the syntax is to get all users that have made a payment on a certain date? Or even get all users that have made a payment at all?

Also to note I am writing in VB.

Thanks

Answer 1

Sounds like you might be able to hit the UserPayments, use a where clause to filter by your date, and get the distinct Users from there.

Something like this?

 Dim users = From up In db.UserPayments _
    Where up.PaymentDate >= someDate _
    Select up.User Distinct

The VB dot-notation escapes me, but in C#, I'd do this (sorry I can't get you quite exactly what you're looking for):

var users = db.UserPayments.Where(x=>x.PayDate.Date == someDate)
                           .Select(x=>x.User)
                           .Distinct();