looking for a way to create Linq-to-SQL Master-Detail with where in Detail -

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i have sql:

select *  order left outer join orderdetail   (select count(*) orderdetail orderdetail.id=order.id , orderdetail.productname='book')>0

how can implement in linq

thanks

looks sql wrong start with. looks more correct:

select *  order left outer join orderdetail on (orderdetail.id=order.id , orderdetail.productname='book')

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