Linq Query Join Tables

Question

I have this Linq Query I run a search function on (DateFrom and DateTo are dateTime objects):

 var result = from x in DbContext.Transaction_Groups
 where  (x.Date_Created >= DateFrom && x.Date_Created <= DateTo)
 select x;

And these are my tables:

I'm trying to join these two tables together so that I can use the .Transaction_Date_Time instead of the .Date_Created function that's in my query.

My query is trying to determine all the rows between the DateFrom (user selected value) and the DateTo (Another user selected value).

Answer 1

var result = from transgroup in DbContext.Transaction_Groups
             join cashDep in DbContext.CashDeposit
             on transgroup.Group_ID equals cashDep.Group_ID
             where (cashDep.Transaction_Date_Time >= DateFrom
                    && cashDep.Transaction_Date_Time <= DateTo)
             select transgroup

Untested, but should work. indentation for clarity.

Answer 2

Do you want to join by Group_ID?

 var result = from x in DbContext.Transaction_Groups
 join tran in DbContext.CashDeposit on x.Group_ID equals tran.Group_ID
 where  (tran.Transaction_Date_Time >= DateFrom && tran.Transaction_Date_Time <= DateTo)
 select tran;