Question

I have a ‘var’ that contains results from two tables using LINQ to SQL. I need to get MAX(table1.ID). But I can’t do:

myVar.table1.ID.Max()

since myVar has no idea about the objects it is holding. What should that syntax look like?

EDIT:

The full query is:

var myVar = from table1 in db.table1s
            join table2 in db.table2s
            on table1.empid equals table2.empid
            where table2.deptid = deptid
            select table1

Several results are returned. I want the max table1.ID row.

Answer 1

Okay, it looks like you want:

var maxId = myVar.Max(x => x.ID);

Or if you may not have any entries:

var maxId = myVar.Max(x => (int?) x.ID);

Then maxId will be null if it’s empty.