vb.net - select as field in Linq -

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i new linq , trying convert following sql query linq;

  select c.clientid , c.clientname    , isnull((select 1 clientcontactaccess cca          cca.clientid = c.clientid , clientcontactid = 2141  ), 0) 'clientaccess'   clients c   c.groupid = 1

i have tried far don't know include clause;

 dim query = (from c in db.client select new _                {key .clientid = c.clientid, _                  key .clientname = c.clientname, _                  key .clientaccess = (from cca in db.clientcontactaccess cca.clientid = c.clientid , cca.clientcontactid = _contactid)})

updated:

i have managed come far clientaccess field returns no value. need return either 1 or 0.

  dim query = (from c in db.client c.groupid = 1 select new _                {key .clientid = c.clientid, _                  key .clientname = c.clientname, _                  key .clientaccess = (from cca in db.clientcontactaccess cca.clientid = c.clientid , cca.clientcontactid = _contactid)})

i tried convert sql query i'm not sure work , think converting query result in c# , need little bit change need.

var result=from c in clients select  new {c.clientid,c.clientname, cca.where(x=>x.clientid=c.clientid  && x.clientcontactid=2141).any()} c.groupid==1;

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