Nhibernate Where Condition -

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i want generate condition in nhibernate below can 1 me out

select id,name employee (id=@id or id null) want code generate condition.

you should check out documentation here: http://nhibernate.info/doc/nh/en/index.html#querycriteria-narrowing

a solution using criteria api is: 

session.createcriteria<employee>()     .add(restrictions.eq("id", id) | restrictions.isnull(id));

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