LINQ to GridView binding

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ASP.NET

I have few questions in LINQ implementation.

1)In VS2010 framework 4.0 how can we use Visualizer to see SQL code. I found the option with Vs2008 but didn't find any where sqlqueryvisualizer.dll to use in VS2010.

2)How to bind gridview with 2 related tables data using datacontext and AssociateWith or LoadWith. ex: I have tblUserType and tblUser

tblUserType                    tblUsers
--------------                ----------  
UsertypeID (Primary)           UserID (Primary)
UserTypeDesc                   Username 
                               UserCity   
                               UserTypeID(FK of tblUserType)  

I want to bind gridview with UserTypeDesc and UserCity and UserName

Thanks,
Srinivas Kalagara