Two table structure
A table: User1: ID, Name, Sorce1
Table B: User2: ID, Name, Sorce1, Sorce2
Need to use Linq, A query set of two tables, returns the B table structure, but the default columns of A table Sorce2, don't know how to handle

Statement:
Var temp=(from a User1 in
Select new User2 {
ID=Anderson D, Name=a.N ame, Sorce1=a.S orce1, Sorce2=0}
The Union (
The from b in User2
Select new User2 {
ID=b.I D, Name=b.N ame, Sorce1=b.S orce1, Sorce2=b.S orce2}
)
This is an error: Set operations over the company store types are currently unsupported
Sorce2 is of type int