how to write query in LInq to sql

Question

hi expert,

this is ssimple qeury ,

SELECT CategoryIdPrimary, ISNULL(CategoryName,'') AS CategoryName

FROM tblCategory WITH (NOLOCK) Where TypeOfCategory IN ( 6 ,1 ,2,3)

Order By CategoryName

 i want to convert to linq query 

 how to write these query

 please help