.net - How can I insert a record with a specific identity using Linq with IDENTITY_INSERT set to ON -

i'm trying synchronize table between 2 databases using linq. want primary keys (identities) in both tables same. haven't been able accomplish using linq.

after scouring google, closest can this:

using dbcontext new dbcontext()     'somewhere read line below ensures queries run in same session     dbcontext.connection.open()       dim copyofshoe new shoe()     copyofshoe.id = originalshoe.id     copyofshoe.color = originalshoe.color      dbcontext.executecommand("set identity_insert shoes on")     dbcontext.shoes.insertonsubmit(copyofshoe)     dbcontext.submitchanges()     dbcontext.executecommand("set identity_insert shoes off") end using 

but throws exception:

explicit value must specified identity column in table 'shoes' either when identity_insert set on or when replication user inserting not replication identity column.

i know can around using executecommand insert new record existing identity, want know if possible using linq.