SQL to Entity Framework query for distinct instances - sql

Question

I need to translate the following query from SQL into an Entity Framework query. Can anyone please help.
var query3 = string.Format(#"
SELECT DISTINCT
Boxes.BoxName,
Employees.EmployeeNumber,
Boxes.Port,
Boxes.SerialNumber
FROM
Eventlog
INNER JOIN Boxes
ON Eventlog.SerialNumber = Boxes.SerialNumber
INNER JOIN Employees
ON Eventlog.EmployeeId = Employees.EmployeeId
WHERE
ActionId = {4}
AND Boxes.Deactivated = 0
AND ( ('*' = '{0}')
OR (Boxes.SerialNumber = '{0}') )
AND ( (-1 = {1})
OR (Employees.EmployeeId = '{1}') )
AND EventTime >= '{2}'
AND EventTime <= '{3}'
", boxFilter3, ReportEmployeeIdFilter, ReportStartDate, ReportEndDate, actionFilter);

Answer 1

Something like this should work:
var query = (from log in context.Eventlog
join box in context.Boxes
on log.SerialNumber equals box.SerialNumber
join employee in context.Employees
on log.EmployeeId equals employee.EmployeeId
where log.ActionId == actionFilter
&& box.Deactivated == 0
&& (boxFilter3 == "*" || box.SerialNumber == boxFilter3)
&& (ReportEmployeeIdFilter == -1 || employee.EmployeeId == ReportEmployeeIdFilter)
&& log.EventTime >= ReportStartDate
&& log.EventTime <= ReportEndDate
select new
{
box.BoxName,
employee.EmployeeNumber,
box.Port,
box.SerialNumber
})
.Distinct();