What is difference between .edmx and .dbml file in linq?In VS 2008 which datasource is best choice where edmx or dbml?Any problem will arise using edmx file in VS 2008?Can i use edmx in VS-2008?
edmx is the modeling file for Entity Framework.
dbml is the modeling file for Linq 2 Sql.
You should spend your time learning Entity Framework as Linq 2 Sql is deprecated.