Question

I have two tables A & B. I can fire Linq queries & get required data for individual tables.
As i know what each of the tables will return as shown in example.
But, when i join both the tables i m not aware of the return type of the Linq query. This problem can be solved by creating a class which will hold ID,Name and Address properties inside it. but,everytime before writing a join query depending on the return type i will have to create a class which is not a convinient way
Is there any other mathod available to achieve this

  private IList<A> GetA()
    {
        var query = from a in objA
                    select a;
        return query.ToList();
    }

    private IList<B> GetB()
    {
        var query = from b in objB
                    select b;
        return query.ToList();
    }

    private IList<**returnType**?> GetJoinAAndB()
    {
        var query = from a in objA
                    join b in objB
                    on a.ID equals b.AID
                    select new { a.ID, a.Name, b.Address };
        return query.ToList();
    }

Answer 1

The value you generate is called Anonymous Type and you can return it unless you return object like:

private object GetJoinAAndB()
{
    var query = from a in objA
                join b in objB
                on a.ID equals b.AID
                select new { a.ID, a.Name, b.Address };
    return query.ToList();
}

There are two good solutions:
1. is to generate a class to match the output and generate it like Kobi solution
2. if you are using .net 4 you can return a dynamic type like

private dynamic GetJoinAAndB()
{
    var query = from a in objA
                join b in objB
                on a.ID equals b.AID
                select new { a.ID, a.Name, b.Address };
    return query.ToList();
}

then you can use it later. You can search the internet about the advantage of using dynamic keyword.