How to join with LinQ to (typed) dataset?

Question

i recently upgraded VS 2005 to 2010 and am fairly new to LinQ. Maybe somebody can put me in the right way.

Background: I have a typed dataset and h

Answer 1

I am afraid that someone will come and start throwing rocks at me but I will take my chances. I would probably start with this:

var AccessRules = from ar in aspnet_AccessRule
            from rar in aspnet_Role
            from r in aspnet_Roles
            from uir in aspnet_UsersInRoles
            where ar.idaccessrule == rar.fiAccessRule
            where rar.fiRole == r.RoleId
            where r.RoleId == uir.RoleId
            select ar;

Hmmm.. I actuall don't know how your dataset looks, but I think you get the point from this pseudocode.

Edit: here is the link to tool that might help you: Linqer