LINQ: stulpelio pavadinimo keitimas

MS SQL stulepio vardas keičiamas taip:

SELECT t.ID, t.Name as 'FirstName' FROM table1 as t


LINQ stulpelio vardas keičiamas kuriant objektą:

Dim obj = From g In odb.Groups

                  Join mg In odb.MainGroups On g.MainId Equals mg.Id

                  Join sg In odb.Subgroups On sg.ProdGroup Equals g.Cat

                  Order By mg.ProductGroup, g.Description Ascending

                  Select New With {mg.ProductGroup, g.Description, .NextDesc = sg.Description}